freemcplab / Annuaire / Playground / Cisco MCP Scanner

● Officiel cisco-ai-defense ⚡ Instantané

Cisco MCP Scanner

Name: Cisco MCP Scanner MCP Server
Author: cisco-ai-defense

par cisco-ai-defense · cisco-ai-defense/mcp-scanner

Run a battery of prompt-injection, tool-shadowing, and exfiltration tests against any MCP server before you trust it in production.

Cisco's scanner enumerates an MCP server's tools, descriptions, and prompts, then probes them with known attack templates: indirect injection in returned data, tool-name shadowing, suspicious schema fields, exfil-via-error, and more. You get a Markdown/JSON report you can attach to a PR.

▶ Voir la démo 📦 Installer 💡 Cas d'usage

Pourquoi l'utiliser

Fonctionnalités clés

Probes tool descriptions for hidden instructions
Tests indirect prompt injection in returned content
Detects tool shadowing / spoofing risk
Heuristics for credential exfil via error messages
Markdown + JSON report formats
CI-friendly exit codes

Démo en direct

Aperçu en pratique

prêt

Installer

Choisissez votre client

~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "cisco-mcp-scanner": {
      "command": "uvx",
      "args": [
        "mcp-scanner",
        "--server",
        "stdio:npx -y <target>"
      ],
      "_doc": "Run against any MCP server config; produces a security report."
    }
  }
}

Ouvrez Claude Desktop → Settings → Developer → Edit Config. Redémarrez après avoir enregistré.

~/.cursor/mcp.json · .cursor/mcp.json

{
  "mcpServers": {
    "cisco-mcp-scanner": {
      "command": "uvx",
      "args": [
        "mcp-scanner",
        "--server",
        "stdio:npx -y <target>"
      ],
      "_doc": "Run against any MCP server config; produces a security report."
    }
  }
}

Cursor utilise le même schéma mcpServers que Claude Desktop. La config projet l'emporte sur la globale.

VS Code → Cline → MCP Servers → Edit

{
  "mcpServers": {
    "cisco-mcp-scanner": {
      "command": "uvx",
      "args": [
        "mcp-scanner",
        "--server",
        "stdio:npx -y <target>"
      ],
      "_doc": "Run against any MCP server config; produces a security report."
    }
  }
}

Cliquez sur l'icône MCP Servers dans la barre latérale Cline, puis "Edit Configuration".

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "cisco-mcp-scanner": {
      "command": "uvx",
      "args": [
        "mcp-scanner",
        "--server",
        "stdio:npx -y <target>"
      ],
      "_doc": "Run against any MCP server config; produces a security report."
    }
  }
}

Même format que Claude Desktop. Redémarrez Windsurf pour appliquer.

~/.continue/config.json

{
  "mcpServers": [
    {
      "name": "cisco-mcp-scanner",
      "command": "uvx",
      "args": [
        "mcp-scanner",
        "--server",
        "stdio:npx -y <target>"
      ]
    }
  ]
}

Continue utilise un tableau d'objets serveur plutôt qu'une map.

~/.config/zed/settings.json

{
  "context_servers": {
    "cisco-mcp-scanner": {
      "command": {
        "path": "uvx",
        "args": [
          "mcp-scanner",
          "--server",
          "stdio:npx -y <target>"
        ]
      }
    }
  }
}

Ajoutez dans context_servers. Zed recharge à chaud à la sauvegarde.

claude mcp add cisco-mcp-scanner -- uvx mcp-scanner --server 'stdio:npx -y <target>'

Une seule ligne. Vérifiez avec claude mcp list. Supprimez avec claude mcp remove.

Cas d'usage

Usages concrets : Cisco MCP Scanner

Audit a third-party MCP before adopting it

👤 Developers ⏱ ~15 min intermediate

Quand l'utiliser : A teammate wants to install a community MCP and you want a security signal first.

Déroulement

Install scanner

uvx mcp-scanner --help✓ Copié

→ Scanner runs
Scan

mcp-scanner --server "stdio:npx -y the-mcp" --output report.md✓ Copié

→ Report written
Review

Open report.md; triage findings by severity.✓ Copié

→ Adoption decision documented

Résultat : Documented security review before merging the MCP into your config.

Gate MCP changes in CI

👤 Developers ⏱ ~15 min intermediate

Quand l'utiliser : You ship an internal MCP and want a baseline check on every PR.

Déroulement

Add CI step

Run mcp-scanner against the built server; fail on HIGH findings.✓ Copié

→ PR fails on regressions
Fix or accept

Each finding gets fixed or annotated with a risk acceptance.✓ Copié

→ Clean baseline

Résultat : No new prompt-injection surface ships unreviewed.

Combinaisons

Associez-le à d'autres MCPs pour un effet X10

cisco-mcp-scanner + github

Run on every PR via Actions; comment findings on the PR

Combine cisco-mcp-scanner with github: Run on every PR via Actions; comment findings on the PR✓ Copié

cisco-mcp-scanner + sentry

Pipe scanner findings as Sentry alerts on main branch

Combine cisco-mcp-scanner with sentry: Pipe scanner findings as Sentry alerts on main branch✓ Copié

Outils

Ce que ce MCP expose

Outil	Entrées	Quand appeler	Coût
scanner CLI	(see docs)	Not exposed as MCP tools — this is a scanner, not a server	1 call

Coût et limites

Coût d'exécution

Quota d'API: N/A
Tokens par appel: Local — uses the target MCP only
Monétaire: Free OSS
Astuce: Run scans in a sandboxed network so probes can't exfil real data

Sécurité

Permissions, secrets, portée

Stockage des identifiants : No credentials by itself

Sortie de données : Whatever the target MCP egresses

Ne jamais accorder : point at a production MCP with real credentials — use a staging instance

Dépannage

Erreurs courantes et correctifs

Scanner times out on a slow MCP

Increase --timeout; check the server actually starts under stdio

False positives on benign tools

Use --baseline to mark them; future runs ignore

Alternatives

Cisco MCP Scanner vs autres

Alternative	Quand l'utiliser	Compromis
Manual review	Single-author trusted MCP	Misses subtle injection patterns

Plus

Ressources

📖 Lire le README officiel sur GitHub

🐙 Voir les issues ouvertes

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