dnsenum_scan · Kali MCP Server MCP: Risk & Policy

WHAT IT DOES

What dnsenum_scan does on Kali MCP Server

AI agents invoke dnsenum_scan to trigger actions in Kali MCP Server. 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 dnsenum_scan needs a policy

DNS enumeration actively queries and probes external DNS infrastructure to discover hostnames, subdomains, zone transfers, and network topology. While it is primarily a reconnaissance/read operation, it executes active network probes against target systems and is a penetration testing tool that can be used to map attack surfaces.

From the tool's definition 'DNS enumeration tool' running within a Kali Linux penetration testing server alongside tools like nmap, hydra, and sqlmap

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

dnsenum_scan Rate-limited

dnsenum_scan 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": {
    "dnsenum_scan": {
      "limits": [
        {
          "counter": "dnsenum_scan_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 Kali MCP Server, so you can run agents against it safely.

FAQ

Questions about dnsenum_scan

What does the dnsenum_scan tool do? +

DNS enumeration tool. It is categorised as a Execute tool in the Kali MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on dnsenum_scan? +

Register the Kali MCP Server MCP server in PolicyLayer and add a rule for dnsenum_scan: 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 Kali MCP Server. Nothing to install.

What risk level is dnsenum_scan? +

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

Can I rate-limit dnsenum_scan? +

Yes. Add a rate_limit block to the dnsenum_scan 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 dnsenum_scan completely? +

Set action: deny in the PolicyLayer policy for dnsenum_scan. 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 dnsenum_scan? +

dnsenum_scan is provided by the Kali MCP Server MCP server (jesseeikeland/kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.