crackmapexec_smb · Kali Linux MCP Server MCP: Risk & Policy

WHAT IT DOES

What crackmapexec_smb does on Kali Linux MCP Server

AI agents invoke crackmapexec_smb 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 crackmapexec_smb needs a policy

CrackMapExec is an active exploitation/credential-testing tool that attempts authentication against SMB targets across networks. It executes live network operations (credential spraying, authentication attempts) against remote systems.

From the tool's definition SMB credential testing using CrackMapExec

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

crackmapexec_smb Rate-limited

crackmapexec_smb 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": {
    "crackmapexec_smb": {
      "limits": [
        {
          "counter": "crackmapexec_smb_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 crackmapexec_smb

What does the crackmapexec_smb tool do? +

SMB credential testing using CrackMapExec. 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 crackmapexec_smb? +

Register the Kali Linux MCP Server MCP server in PolicyLayer and add a rule for crackmapexec_smb: 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 crackmapexec_smb? +

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

Can I rate-limit crackmapexec_smb? +

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

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

crackmapexec_smb 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.