Closes A3 of v7.1.0 critical-review patch. Each rewrite preserves the underlying
claim where it is accurate but removes hype/overreach language. Historical
CHANGELOG/README version-table rows are intentionally left as-is (they document
what was claimed at the time of release, not what is true today).
Changes (CLAUDE.md, commands/ide-scan.md, knowledge/mitigation-matrix.md,
docs/security-hardening-guide.md):
- "Trustworthy scoring (BREAKING)" → "Severity-dominated risk scoring
(v2 model, BREAKING)". Removes hype framing; describes the actual mechanism.
- "Context-aware entropy scanner" → "Rule-based entropy scanner with
file-extension skip, 8 line-level suppression rules, and configurable policy".
No ML/context inference; just rules.
- "1487 tests" → "1511 unit and integration tests; mutation-testing coverage
not published". Updated count after A1+A2 (+24) and added qualifier.
- "Fully Schrems II compatible" → "Schrems II compatible in default offline
mode. Optional OSV.dev enrichment (`supply-chain-recheck --online`)
transmits package identifiers to a Google-operated API and is a separate
compliance consideration." Acknowledges the OSV.dev opt-in caveat.
- "Rule of Two enforcement" → "Rule of Two detection (configurable; default
warn; blocks on high-confidence trifectas in opt-in `block` mode; distributed
trifectas detected but not blocked by default)". "Enforcement" implied
block; default is warn.
- "Hardened ZIP extractor" → suffix " — no fuzz-testing results published
to date". Caps and class-of-attacks rejected are accurate; absence of
formal fuzz coverage now stated.
- "defense-in-depth" — preserved as framing, but quantified in
security-hardening-guide §4: "three independent detection layers with
documented bypass classes". Each layer named, each layer's known bypasses
pointed to (critical-review §4 evasion arsenal).
Tests: 1511/1511 green (no behavioural change).
Pre-installation verification of VS Code extensions via URL — fetch a remote
VSIX, extract it in a hardened sandbox, and run the existing IDE scanner
pipeline against it. No npm dependencies.
Sources:
- VS Code Marketplace (publisher.gallery.vsassets.io direct download)
- OpenVSX (open-vsx.org official API)
- Direct .vsix HTTPS URLs
Defenses:
- HTTPS-only, TLS verified, manual redirect with per-source host whitelist
- 30s total timeout via AbortController
- 50MB compressed cap, 500MB uncompressed, 100x expansion ratio
- Zero-dep ZIP extractor: zip-slip, absolute paths, drive letters, NUL bytes,
symlinks (Unix mode 0xA000), depth limits, ZIP64 rejected, encrypted rejected
- SHA-256 streamed during fetch, surfaced in meta.source
- Temp dir cleanup in all paths (try/finally)
Files:
- scanners/lib/vsix-fetch.mjs (HTTPS fetcher, host whitelist, streaming SHA-256)
- scanners/lib/zip-extract.mjs (zero-dep parser with hardening caps)
- knowledge/marketplace-api-notes.md (endpoint reference)
- 3 test files (48 tests added: vsix-fetch, zip-extract, ide-extension-url)
Tests: 1296 → 1344 (all green).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Harden git clone attack surface for remote scans with defense-in-depth:
Layer 1 (all platforms): 8 git config flags disable hooks, symlinks,
filter/smudge drivers, fsmonitor, local file protocol. 4 env vars
isolate from system/user git config and block interactive prompts.
Layer 2 (OS sandbox): macOS sandbox-exec and Linux bubblewrap (bwrap)
restrict file writes to only the specific temp directory. bwrap
probe-tests availability before use. Graceful fallback on Windows
and Ubuntu 24.04+ (git config hardening only).
Additional: post-clone 100MB size check, UUID-unique evidence filenames,
evidence file cleanup, cleanup guarantee in scan/plugin-audit commands.
32 new tests (1147 total).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
