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feat(llm-security): add /security ide-scan — VS Code / JetBrains extension prescan (v6.3.0)

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New standalone scanner (prefix IDE) discovers installed VS Code extensions
across forks (Cursor, Windsurf, VSCodium, code-server, Insiders, Remote-SSH)
and runs 7 IDE-specific threat checks: blocklist match (CRITICAL),
theme-with-code, sideload (unsigned .vsix), dangerous uninstall hook (HIGH),
wildcard activation, extension-pack expansion, typosquat (MEDIUM).

Per-extension reuse of UNI/ENT/NET/TNT/MEM/SCR scanners with bounded
concurrency. Offline-first; --online opt-in. JetBrains discovery stubbed
for v1.1. 22 new tests (1296 total, was 1274).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Kjell Tore Guttormsen 2026-04-17 16:23:35 +02:00
commit 6252e55700
33 changed files with 1849 additions and 20 deletions
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13
plugins/llm-security/CHANGELOG.md
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@ -4,6 +4,19 @@ All notable changes to the LLM Security Plugin are documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
## [6.3.0] - 2026-04-17
### Added
- **IDE extension prescan** — New `/security ide-scan` command and `scanners/ide-extension-scanner.mjs` (prefix IDE) discover and audit installed VS Code extensions across 6 roots (`~/.vscode/extensions`, `~/.vscode-insiders/extensions`, `~/.cursor/extensions`, `~/.windsurf/extensions`, `~/.vscode-oss/extensions`, `~/.vscode-server/extensions`, plus Linux `code-server`). OS-aware discovery via `scanners/lib/ide-extension-discovery.mjs`. Manifest parsing via `scanners/lib/ide-extension-parser.mjs`. Data loading via `scanners/lib/ide-extension-data.mjs`. JetBrains discovery is a v1.1 stub.
- **7 IDE-specific detection categories** — Blocklist match (CRITICAL), theme-with-code (HIGH, Material Theme pattern), sideload `.vsix` (HIGH unsigned / MEDIUM signed), broad activation `*` / `onStartupFinished` (MEDIUM/LOW, suppressed for top-100 exact matches), Levenshtein typosquat ≤2 vs top-100 (HIGH distance-1 / MEDIUM distance-2 against top-50), extension-pack expansion ≥3 (MEDIUM), dangerous `vscode:uninstall` hooks referencing `child_process`/`curl`/`wget`/`rm`/`powershell` (HIGH/LOW)
- **Per-extension scanner orchestration** — Each discovered extension runs through UNI, ENT, NET, TNT, MEM, SCR scanners with bounded concurrency (default 4). MEM gets a filtered file list (README.md / CHANGELOG.md / package.json) to catch prompt-injection in marketplace-rendered text
- **New knowledge files** — `knowledge/ide-extension-threat-patterns.md` (10 categories with 2024-2026 case studies from Koi Security — GlassWorm, WhiteCobra, TigerJack, Material Theme, VS Code Cryptojacking, MaliciousCorgi), `knowledge/top-vscode-extensions.json` (top ~100 Marketplace IDs + blocklist), `knowledge/top-jetbrains-plugins.json` (stub)
- **CLI integration** — `bin/llm-security.mjs` gains `ide-scan` subcommand with passthrough flags
- 22 new tests in `tests/scanners/ide-extension-scanner.test.mjs` (fixtures under `tests/fixtures/ide-extensions/`). 1296 tests total (was 1274)
### Changed
- Version bump: 6.2.0 → 6.3.0 across all files
## [6.2.0] - 2026-04-17
### Added