gobuster_vhost · Gobuster MCP: Risk & Policy

WHAT IT DOES

What gobuster_vhost does on Gobuster

AI agents invoke gobuster_vhost to trigger actions in Gobuster. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why gobuster_vhost needs a policy

This tool actively executes a brute-force enumeration attack against a remote web server by sending numerous HTTP requests with varied Host headers. It runs commands on a remote Kali Linux host via SSH, making it an Execute-category tool.

From the tool's definition "Virtual host enumeration mode - discovers virtual hosts on a web server by brute forcing Host header values. Executes on remote Kali host via SSH."

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gobuster_vhost Rate-limited

gobuster_vhost stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gobuster_vhost": {
      "limits": [
        {
          "counter": "gobuster_vhost_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Gobuster, so you can run agents against it safely.

FAQ

Questions about gobuster_vhost

What does the gobuster_vhost tool do? +

Virtual host enumeration mode - discovers virtual hosts on a web server by brute forcing Host header values. Executes on remote Kali host via SSH. It is categorised as a Execute tool in the Gobuster MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on gobuster_vhost? +

Register the Gobuster MCP server in PolicyLayer and add a rule for gobuster_vhost: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Gobuster. Nothing to install.

What risk level is gobuster_vhost? +

gobuster_vhost is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit gobuster_vhost? +

Yes. Add a rate_limit block to the gobuster_vhost rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block gobuster_vhost completely? +

Set action: deny in the PolicyLayer policy for gobuster_vhost. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides gobuster_vhost? +

gobuster_vhost is provided by the Gobuster MCP server (schwarztim/sec-gobuster-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.