mcp-noctua

mcp-noctua

Exposes a pentest toolbox (sqlmap, nuclei, ffuf, etc.) via Docker to an LLM orchestrator for authorized security audits, with strict whitelisting and timeout controls.

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README

mcp-noctua

Serveur MCP (stdio) qui expose une toolbox de pentest à un orchestrateur LLM fort (Claude Code, en mode interactif), pour mener des audits de sécurité autorisés.

Réécriture propre inspirée du MCP de Darkmoon (GPL v3) sans copie de code → licence CeCILL-B, zéro dette GPL. La valeur reprise est la toolbox (sqlmap, nuclei, ffuf, httpx, naabu, katana, whatweb…) ; l'orchestration fragile (opencode + modèle local) est jetée et remplacée par un cerveau fort qui vérifie.

Architecture

[Claude Code] --stdio--> [mcp-noctua (hôte)] --docker.sock--> [conteneur darkmoon = toolbox]
   (cerveau)               (passerelle contrôlée)              (sqlmap, nuclei, ffuf…)

mcp-noctua réutilise le conteneur darkmoon (ascit/darkmoon:latest) comme toolbox : il l'invoque via docker.sock. Invoquer des outils dans un conteneur n'est pas une œuvre dérivée → aucun souci de licence. Le conteneur est gardé vivant ; noctua le démarre s'il est arrêté avant un run.

Outils MCP exposés

Outil Rôle
run_tool(command, timeout?) Exécute un outil whitelisté dans la toolbox.
web_crawl(url, depth?, timeout?) Crawl borné (katana).
port_scan(target, ...) naabu + httpx, borné.
vuln_scan(url, tags?) nuclei borné.
list_tools() Outils disponibles dans la toolbox.
health() État du conteneur toolbox (running / démarré / introuvable).

Garde-fous

  • Allow-list stricte d'outils ; patterns dangereux bloqués (rm -rf, fork bomb, exfil…).
  • Timeout qui tue réellement le process dans la toolbox (corrige le défaut Darkmoon).
  • Usage test autorisé uniquement ; l'opérateur valide chaque cible.

Configuration (.env)

Voir .env.example. Clés : DOCKER_CONTAINER_NAME, NOCTUA_TIMEOUT, NOCTUA_REPORTS_DIR, NOCTUA_COMPOSE_DIR, DEBUG.

Installation

git clone https://github.com/NeveuGregor/mcp-noctua.git
cd mcp-noctua
python3 -m venv venv && source venv/bin/activate
pip install -e ".[dev]"
cp .env.example .env   # ajuster si besoin
pytest

Enregistrement dans ~/.claude.json comme serveur MCP stdio : venv/bin/python -m src.main (cwd = mcp-noctua).

Licence

CeCILL-B — voir LICENSE.

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