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>
66 lines
3.3 KiB
Bash
66 lines
3.3 KiB
Bash
#!/usr/bin/env bash
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set -uo pipefail
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# CASAN Plan-16 SEC-15 — low-cluster hardening.
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# * supply-chain typosquat: catch distance<=2 (was distance==1), no false positives
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# (levenshtein length sentinel fixed so it no longer collides with the threshold),
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# * tool-exec: fail CLOSED in enforced mode when no timeout backend exists,
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# * validate-tool-input: recurse into nested objects/arrays (was one level deep).
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#
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# Deterministic; hermetic.
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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S="$PROJECT_ROOT/.specify/scripts/bash"
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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 $?; set -e 2>/dev/null || true; }
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echo "===== Plan-16 SEC-15: low-cluster hardening ====="
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# ---- typosquat (distance<=2) ----
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printf '{"dependencies":{}}' > "$WORK/base.json"
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printf 'requests\nnumpy\nexpress\n' > "$WORK/known.txt"; : > "$WORK/deny.txt"
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scan() { python3 "$S/supply-chain-scan.py" "$1" "$WORK/base.json" "$WORK/known.txt" "$WORK/deny.txt" "$WORK/r.json" "" >/dev/null 2>&1; }
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printf '{"dependencies":{"reqeusts":"1.0.0"}}' > "$WORK/m1.json"; scan "$WORK/m1.json"
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grep -q "typosquat_of:requests" "$WORK/r.json" \
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&& pass "2-char typosquat (reqeusts→requests) flagged" || fail "2-char typosquat missed"
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printf '{"dependencies":{"fastapi":"1.0.0"}}' > "$WORK/m2.json"; scan "$WORK/m2.json"
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grep -q "typosquat" "$WORK/r.json" \
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&& fail "legit package fastapi false-flagged as typosquat" \
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|| pass "legit distant package not false-flagged (levenshtein sentinel fixed)"
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# ---- tool-exec fail-closed when no timeout backend ----
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# PATH=/bin has bash but not perl/timeout (both in /usr/bin) → no-backend branch.
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[[ "$(set +e; PATH=/bin CASAN_TOOL_EXEC_STRICT=1 /bin/bash "$S/tool-exec.sh" 2 -- echo hi >/dev/null 2>&1; echo $?)" -eq 2 ]] \
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&& pass "tool-exec refuses (fail-closed) with no timeout backend in enforced mode" \
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|| fail "tool-exec did not fail closed without a timeout backend"
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[[ "$(set +e; PATH=/bin /bin/bash "$S/tool-exec.sh" 2 -- echo hi >/dev/null 2>&1; echo $?)" -eq 0 ]] \
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&& pass "tool-exec dev: runs without backend (backward compatible)" \
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|| fail "tool-exec dev mode broke"
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# ---- validate-tool-input recursion ----
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cat > "$WORK/schema.json" <<'J'
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{"type":"object","additionalProperties":false,"properties":{
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"cfg":{"type":"object","additionalProperties":false,"properties":{"port":{"type":"integer"}}}}}
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J
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printf '{"cfg":{"port":8080}}' > "$WORK/ok.json"
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printf '{"cfg":{"port":"NOPE"}}' > "$WORK/badtype.json"
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printf '{"cfg":{"port":80,"evil":"x"}}' > "$WORK/badextra.json"
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[[ "$(rc_of bash "$S/validate-tool-input.sh" "$WORK/schema.json" "$WORK/ok.json")" -eq 0 ]] \
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&& pass "valid nested object accepted" || fail "valid nested object rejected"
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[[ "$(rc_of bash "$S/validate-tool-input.sh" "$WORK/schema.json" "$WORK/badtype.json")" -eq 2 ]] \
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&& pass "nested wrong type rejected (recursion)" || fail "nested wrong type slipped through"
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[[ "$(rc_of bash "$S/validate-tool-input.sh" "$WORK/schema.json" "$WORK/badextra.json")" -eq 2 ]] \
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&& pass "nested unexpected field rejected (recursion)" || fail "nested unexpected field slipped through"
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echo ""
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echo "===== SEC-15 SUMMARY: PASS=$PASS FAIL=$FAIL ====="
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[[ "$FAIL" -eq 0 ]] || exit 1
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