thanhnvandClaude Opus 4.8
2c765c9a45
Task 1.2: introduce a single path resolver so no harness script hardcodes `.specify/...` scattered across the tree. casan-paths.sh resolves four roots (HARNESS/STATE/GOVERNANCE/APP) by marker-based walk-up from its own location — never `git rev-parse` (git root is the repo PARENT here, not the app dir). - 101 bash scripts/tests: 238 hardcoded `$PROJECT_ROOT/.specify/...` refs rewritten to CASAN_HARNESS_ROOT (code) / CASAN_STATE_ROOT (logs,state) / CASAN_GOVERNANCE_ROOT. Sandbox test vars ($WORK/$TP/$FP/$T1_WORK) left untouched. - Roots are NOT exported: each script/subprocess self-resolves from its own tree, matching the original per-script semantics and preserving hermetic sandbox isolation (node casan-step.mjs, copied telemetry/rollback scripts must not inherit real roots). - Sandbox tests that copy a harness script now also copy casan-paths.sh (its new sibling dependency): adversarial (verify-audit-chain/verify-tool-audit/rollback) + track-a (security-check/telemetry-integrity). - control-plane-settings.json reclassified as STATE (untracked runtime store). Roots all still resolve to `.specify` in this monolithic layout, so behavior is unchanged. Full gate: PASS=64 FAIL=0 SKIP=3 (adversarial 44/0, track-a 25/0). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
69 lines
3.2 KiB
Bash
69 lines
3.2 KiB
Bash
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN Plan-16 SEC-25 (SC-07, offline) — build-artifact attestation (tested==deployed).
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#
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# Proves (no network):
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# * an artifact attested + verified passes (tested == deployed),
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# * modifying the artifact after attestation -> MISMATCH (deployed != tested) REFUSED,
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# * a forged attestation (signed by a different key) is REFUSED,
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# * a missing or UNSIGNED attestation fails CLOSED.
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#
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# Deterministic; hermetic; uses openssl (skip-aware).
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "$SCRIPT_DIR/../scripts/bash/casan-paths.sh"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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AA="$CASAN_HARNESS_ROOT/scripts/bash/artifact-attest.sh"
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WORK="$(mktemp -d)"
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trap 'rm -rf "$WORK"' EXIT
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PASS=0; FAIL=0
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pass() { echo "PASS: $1"; PASS=$((PASS + 1)); }
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fail() { echo "FAIL: $1"; FAIL=$((FAIL + 1)); }
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rc_of() { set +e; "$@" >/dev/null 2>&1; echo $?; set -e 2>/dev/null || true; }
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command -v openssl >/dev/null 2>&1 || { echo "SKIP: openssl unavailable"; exit 0; }
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echo "===== Plan-16 SEC-25: build-artifact attestation (offline) ====="
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openssl genrsa -out "$WORK/build.priv.pem" 2048 2>/dev/null
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openssl rsa -in "$WORK/build.priv.pem" -pubout -out "$WORK/build.pub.pem" 2>/dev/null
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openssl genrsa -out "$WORK/atk.priv.pem" 2048 2>/dev/null
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printf 'tested release artifact v1\n' > "$WORK/app.tar"
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# --- attest + verify -> OK ---
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bash "$AA" attest "$WORK/app.tar" "$WORK/build.priv.pem" >/dev/null 2>&1
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[[ "$(rc_of bash "$AA" verify "$WORK/app.tar" "$WORK/app.tar.att" "$WORK/build.pub.pem")" -eq 0 ]] \
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&& pass "attested artifact verifies (tested==deployed)" || fail "attested artifact rejected"
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# --- deployed != tested -> MISMATCH ---
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cp "$WORK/app.tar" "$WORK/app2.tar"
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bash "$AA" attest "$WORK/app2.tar" "$WORK/build.priv.pem" >/dev/null 2>&1
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printf 'SWAPPED malicious artifact\n' > "$WORK/app2.tar" # different deploy than tested
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[[ "$(rc_of bash "$AA" verify "$WORK/app2.tar" "$WORK/app2.tar.att" "$WORK/build.pub.pem")" -eq 2 ]] \
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&& pass "swapped artifact (deployed!=tested) REFUSED" || fail "artifact swap not detected"
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# --- forged attestation (wrong key) -> REFUSED ---
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cp "$WORK/app.tar" "$WORK/app3.tar"
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bash "$AA" attest "$WORK/app3.tar" "$WORK/atk.priv.pem" >/dev/null 2>&1 # signed by attacker
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[[ "$(rc_of bash "$AA" verify "$WORK/app3.tar" "$WORK/app3.tar.att" "$WORK/build.pub.pem")" -eq 2 ]] \
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&& pass "forged attestation (wrong key) REFUSED" || fail "forged attestation accepted"
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# --- missing attestation -> fail-closed ---
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printf 'unattested\n' > "$WORK/app4.tar"
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[[ "$(rc_of bash "$AA" verify "$WORK/app4.tar" "$WORK/app4.tar.att" "$WORK/build.pub.pem")" -eq 3 ]] \
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&& pass "missing attestation fails CLOSED" || fail "missing attestation not refused"
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# --- unsigned attestation -> fail-closed ---
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cp "$WORK/app.tar" "$WORK/app5.tar"
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bash "$AA" attest "$WORK/app5.tar" "$WORK/build.priv.pem" >/dev/null 2>&1
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rm -f "$WORK/app5.tar.att.sig" # strip signature
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[[ "$(rc_of bash "$AA" verify "$WORK/app5.tar" "$WORK/app5.tar.att" "$WORK/build.pub.pem")" -eq 3 ]] \
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&& pass "UNSIGNED attestation fails CLOSED" || fail "unsigned attestation not refused"
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echo ""
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echo "===== SEC-25 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
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[[ "$FAIL" -eq 0 ]] || exit 1
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