thanhnvandClaude Opus 4.8
d695a598ee
- SEC-12: drift-detect adds semantic invariants — negation-flip detection (a dropped "not" now FAILS despite high char-similarity) + env must-keep patterns. - SEC-29 (X-05): governance-check audit write fails CLOSED — an unwritable audit log denies the action and empties the output (no unaudited output). - SEC-30 (X-06): approval-verify records a one-time-use nonce (sha of token/sig) and rejects replays (enforced mode / when a nonce ledger is set); dev unchanged. - SEC-15 (low): typosquat distance<=2 with the levenshtein length-sentinel bug fixed (no false positives); tool-exec fails closed with no timeout backend in enforced mode; validate-tool-input now validates nested objects/arrays recursively. Verify: new SEC suites all green via gate, run-casan4 0-FAIL, adversarial 44/44, track-c 29/0, h5-approval 12/0, no regressions. Plan-16 P2 remaining: infra-gated only (SEC-14/22/23/24/25/26). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
56 lines
2.1 KiB
Bash
56 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN Plan-16 SEC-29 (X-05) — audit write fails CLOSED.
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#
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# If the audit log cannot be written (disk full, read-only, quota), a governed
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# action must NOT proceed — there is no action without its accountability record.
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# Proves governance-check denies (and empties the output) when the audit log is
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# unwritable, and still works normally otherwise.
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#
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# Restores the audit log it perturbs on exit.
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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GC="$PROJECT_ROOT/.specify/scripts/bash/governance-check.sh"
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AUD="$PROJECT_ROOT/.specify/logs/audit/audit.jsonl"
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WORK="$(mktemp -d)"
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export CASAN_AUDIT_KEY_DIR="$WORK/keys"
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restore() {
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[[ -f "$AUD" ]] && chmod 644 "$AUD" 2>/dev/null || true
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git -C "$PROJECT_ROOT" checkout -- .specify/logs/ .specify/level5/central-governance/ 2>/dev/null || true
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}
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trap 'restore; 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 $?; set -e 2>/dev/null || true; }
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echo "===== Plan-16 SEC-29: audit fail-closed when unwritable ====="
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echo "benign objective text" > "$WORK/in.txt"
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# Normal (writable) path works.
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[[ "$(rc_of bash "$GC" "$WORK/in.txt" "$WORK/ok-out.txt" agent_step)" -eq 0 ]] \
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&& pass "governed action succeeds when audit is writable" || fail "normal governed action failed"
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# Make the audit log read-only so the append fails; the action must be denied.
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echo "PREEXISTING_OUTPUT" > "$WORK/blocked-out.txt"
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[[ -f "$AUD" ]] || echo '{}' > "$AUD"
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chmod 444 "$AUD"
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RC="$(rc_of bash "$GC" "$WORK/in.txt" "$WORK/blocked-out.txt" agent_step)"
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chmod 644 "$AUD"
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[[ "$RC" -ne 0 ]] \
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&& pass "unwritable audit → governed action DENIED (fail-closed)" \
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|| fail "action proceeded despite unwritable audit (fail-open)"
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[[ ! -s "$WORK/blocked-out.txt" ]] \
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&& pass "output emptied on audit failure (no unaudited output leaks)" \
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|| fail "stale output left after audit failure"
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echo ""
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echo "===== SEC-29 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
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[[ "$FAIL" -eq 0 ]] || exit 1
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