1 Commits
Author SHA1 Message Date
66f9950a30 chore(ci): add security-audit tooling scripts (workflow files pushed separately) (#414)
* chore(ci): add security-audit workflow and plugin security-proof scripts

- scripts/prove_security.py, audit_plugins.py, generate_report.py --
  automated checks (dangerous eval()/exec() calls, dependency scanning,
  report generation) for plugins.
- .github/workflows/security-audit.yml + bandit.yaml -- CI wiring for
  the above plus gitleaks secret scanning and bandit static analysis.
- .github/workflows/tests.yml -- pytest matrix across Python 3.10-3.12.

Also fixes two Codacy findings while these files are freshly landing:
- prove_security.py: dropped a pointless f-string prefix with no
  placeholders.
- security-audit.yml: pinned gitleaks/gitleaks-action to a full commit
  SHA (matching this repo's existing pinning convention in test.yml)
  instead of the floating v2 tag.

Split out of the original chore/dead-code-removal commit, which had
accidentally bundled this in alongside unrelated dead-code deletions.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* chore: drop workflow files -- pushed separately (needs workflow OAuth scope)

* fix(security-tooling): address PR review findings across bandit.yaml, audit_plugins.py, generate_report.py, prove_security.py

bandit.yaml:
- Removed scripts/prove_security.py's file-level exclusion. Ran bandit
  directly to get ground truth: the real false positive is B105 (dict key
  "PASS" misread as password-like), not the eval/exec pattern the old
  comment claimed. Added a targeted # nosec B105 there, and found+fixed
  the identical pattern already present in generate_report.py.
- Left the repo-wide B607 skip as-is: confirmed via AST scan that properly
  narrowing it touches 100+ bare-name subprocess call sites across
  wifi_manager.py, store_manager.py, permission_utils.py, app.py, and
  start.py -- none of which are part of this PR. Out of proportion to fix
  here; flagged as a dedicated follow-up.

scripts/audit_plugins.py:
- SyntaxError/OSError while scanning a plugin file now report CRITICAL
  (blocking) instead of WARNING/INFO -- a file that couldn't be parsed or
  read was never actually checked for danger, so it must not silently
  pass the audit.
- --plugin <name> now tracks whether the requested plugin was found across
  all PLUGIN_BASE_DIRS and exits 1 with a clear error if not, instead of
  silently scanning zero plugins and reporting success.
- The AST visitor now tracks import aliases (import subprocess as sp;
  from builtins import eval as e) and resolves them before checking
  against dangerous APIs, closing a straightforward evasion of every
  PLUGIN-001 through PLUGIN-005 check. Verified against both aliased and
  unaliased evasion patterns.

scripts/generate_report.py:
- _md_table_row now escapes pipe characters and normalizes newlines in
  every cell, so scanner-controlled content (a matched secret, a bandit
  issue_text) can't corrupt the Markdown table structure.
- _load now distinguishes "artifact missing/malformed" from "valid empty
  result": each summarizer returns an availability flag, and main() now
  reports INCOMPLETE (not PASSED) with exit code 1 when any artifact is
  unavailable, instead of silently folding it in as 0 findings.
- Gitleaks suppression now uses exact-match placeholder values (pulled
  from the actual config_secrets.template.json) plus a template-path
  allowlist, replacing broad substring checks that could hide a real
  secret containing something like "example.com" as part of its value.

scripts/prove_security.py:
- T1b (dangerous plugin calls): a file that fails to parse/read now
  reports CRITICAL with the exception details instead of being silently
  swallowed by `except (SyntaxError, OSError): pass`.
- T6 (Docker hardening): base images must now be pinned to an @sha256
  digest; a specific tag like python:3.12 is mutable and is now correctly
  flagged as unpinned, not just missing tags or :latest.
- T2a (API surface): no config mechanism for enforcing local-only access
  exists in this codebase today (app.py hardcodes host='0.0.0.0'), so the
  "environment-aware" check as described isn't buildable without adding
  new config infrastructure -- out of scope here. Applied the achievable
  part: upgraded from INFO to WARNING, since enforcement can never
  currently be confirmed.
- T1a (zip-slip): replaced the whole-file substring check with an AST
  walk that finds every extract()/extractall() call and confirms an
  is_relative_to() guard + "Zip-slip detected" log precede it in the same
  function. Verified it still passes on the real store_manager.py (both
  the per-member and validate-then-bulk-extract call sites) and correctly
  flags a synthetic unguarded extractall().
- T3a (hardcoded secrets): violation details no longer include the
  matched credential text -- only file, line, pattern type, and a
  redacted SHA-256 fingerprint, so a real finding doesn't get published
  into CI logs/artifacts/PR comments with wider exposure than the
  original leak. Verified with a synthetic secret that no raw content
  reaches the output.

Validated: all four files compile; bandit scans all three scripts clean
(2 legitimate targeted suppressions, 0 unaddressed findings); each new/
changed code path exercised directly (alias evasion, unmatched --plugin,
missing/malformed/valid-empty artifacts, digest-pinning, zip-slip
guard/no-guard, secret redaction); full audit_plugins.py -> prove_security.py
-> generate_report.py pipeline run end-to-end producing a correct report.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

* fix(security-tooling): address follow-up review findings on PR #414

scripts/generate_report.py:
- Added an explicit `object` type annotation to _md_sanitize_cell's value
  parameter -- it deliberately accepts any stringifiable value (calls
  str(value) unconditionally), so `object` reflects its actual contract
  more accurately than leaving it untyped.

scripts/prove_security.py:
- Dockerfile FROM-line parsing: renamed the comprehension variable `l` to
  `line` (ambiguous single-letter name). More importantly, fixed a real
  false-positive: `FROM --platform=<platform> <image>` was reading the
  --platform= flag itself as the image token, so a properly digest-pinned
  image behind a platform flag was incorrectly reported as unpinned.
  Verified against platform+digest, platform+tag-only, and digest+AS-alias
  Dockerfiles.

scripts/audit_plugins.py:
- Consolidated visit_Call's dangerous-API detection: previously, alias
  resolution only covered ast.Name calls for eval/exec/compile and
  ast.Attribute calls for subprocess/os.system, missing from-imported
  subprocess/os functions called as bare names (from subprocess import
  run as prun; prun(cmd, shell=True) or from os import system as s;
  s(cmd)). Added _resolve_call_target() to resolve both call shapes to a
  single fully-qualified target, then run all five PLUGIN-00x checks
  against that one resolved value. Verified against 10 evasion
  combinations (from-import aliases, direct/attribute calls, aliased
  module imports) and confirmed zero false positives on benign os/
  subprocess usage without shell=True.

Validated: all three files compile, bandit scans clean (same 2 legitimate
suppressions as before, 0 new findings), audit_plugins.py/prove_security.py
re-run against the real repo with no regressions from the prior fix pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ

---------

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-15 14:33:17 -04:00