thanhnvandClaude Opus 4.8
3adc48ed82
Resolve every root by marker walk-up instead of a fixed depth that only lands on the app via the .specify compat symlink, so the harness runs correctly when invoked by its real packages/casan-harness path — proven by a full gate run via that path: 64/0/0. - 95 scripts/tests: PROJECT_ROOT/ROOT "$SCRIPT_DIR/../.."-style computations -> $CASAN_APP_ROOT. - 6 leaf scripts (infra-lab, context-validate, secrets-scan, path-guard, toolchain-verify, phase2-sourcegen) now source casan-paths + use CASAN_APP_ROOT. - run-casan4: source casan-paths as a package sibling (facade-independent), PROJECT_ROOT=CASAN_APP_ROOT. - 8 Python files: project_root()/REPO_ROOT/bundle_root walk UP for the .specify marker (control-plane-settings, loop_common, model-call, context-compress, test-integrity, bundle-integrity, traceability-matrix; generate-* fixed earlier). - evidence-pack-build.py + traceability-matrix.py: domain refs -> apps/okr/domain (input/, corpus/redteam-vectors.jsonl, traceability-map.json). - ci-harness-gate.sh: export CASAN_TESTS_DIR/CASAN_TEST_MANIFEST/CASAN_BUNDLE_ROOT so the integrity Python resolves via the harness root regardless of invocation path; ROOT=CASAN_APP_ROOT. - Remove the domain compat symlinks from packages/casan-harness/security (redteam-corpus, redteam-vectors, benign-corpus) — packages now holds NO domain data. Both invocation paths pass (compat facade still present): .specify/... and packages/... Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
81 lines
3.9 KiB
Bash
81 lines
3.9 KiB
Bash
#!/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)"
|
|
source "$SCRIPT_DIR/../scripts/bash/casan-paths.sh"
|
|
PROJECT_ROOT="$CASAN_APP_ROOT"
|
|
BASH_DIR="$CASAN_HARNESS_ROOT/scripts/bash"
|
|
BI="$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
|