nikto_scan · Kali MCP Server MCP: Risk & Policy

WHAT IT DOES

What nikto_scan does on Kali MCP Server

AI agents invoke nikto_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 nikto_scan needs a policy

Nikto is an active web server scanner that sends HTTP requests to enumerate vulnerabilities, misconfigurations, and sensitive files on target servers. This constitutes executing an external operation against a remote system. While it is primarily a read/reconnaissance tool, it actively probes external systems which could cause log noise, trigger alerts, or unintentionally stress the target.

From the tool's definition 'Run Nikto web server scanner' — actively executes the Nikto tool against a target web server, triggering external network operations and vulnerability probing.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

nikto_scan Rate-limited

nikto_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": {
    "nikto_scan": {
      "limits": [
        {
          "counter": "nikto_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 nikto_scan

What does the nikto_scan tool do? +

Run Nikto web server scanner. 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 nikto_scan? +

Register the Kali MCP Server MCP server in PolicyLayer and add a rule for nikto_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 nikto_scan? +

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

Can I rate-limit nikto_scan? +

Yes. Add a rate_limit block to the nikto_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 nikto_scan completely? +

Set action: deny in the PolicyLayer policy for nikto_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 nikto_scan? +

nikto_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.