enum4linux_scan · Kali Linux MCP Server MCP: Risk & Policy

WHAT IT DOES

What enum4linux_scan does on Kali Linux MCP Server

AI agents invoke enum4linux_scan to trigger actions in Kali Linux 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 enum4linux_scan needs a policy

enum4linux actively probes remote systems via SMB/NetBIOS to extract information such as user lists, shares, group memberships, and policies. This constitutes active network enumeration — it triggers external operations against target systems. While it is primarily a read/reconnaissance tool, it executes an external security tool against potentially unauthorized systems.

From the tool's definition SMB/NetBIOS enumeration using enum4linux

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

enum4linux_scan Rate-limited

enum4linux_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": {
    "enum4linux_scan": {
      "limits": [
        {
          "counter": "enum4linux_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 Linux MCP Server, so you can run agents against it safely.

FAQ

Questions about enum4linux_scan

What does the enum4linux_scan tool do? +

SMB/NetBIOS enumeration using enum4linux. It is categorised as a Execute tool in the Kali Linux 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 enum4linux_scan? +

Register the Kali Linux MCP Server MCP server in PolicyLayer and add a rule for enum4linux_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 Linux MCP Server. Nothing to install.

What risk level is enum4linux_scan? +

enum4linux_scan is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit enum4linux_scan? +

Yes. Add a rate_limit block to the enum4linux_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 enum4linux_scan completely? +

Set action: deny in the PolicyLayer policy for enum4linux_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 enum4linux_scan? +

enum4linux_scan is provided by the Kali Linux MCP Server MCP server (pellax/kalimcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.