hashcat_crack · MCP Kali Pentest MCP: Risk & Policy

WHAT IT DOES

What hashcat_crack does on MCP Kali Pentest

AI agents invoke hashcat_crack to trigger actions in MCP Kali Pentest. 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 hashcat_crack needs a policy

hashcat_crack executes GPU-accelerated password cracking operations. While it performs computation rather than directly modifying or deleting data, it actively runs intensive processing to recover credentials, which can be used to compromise accounts and systems. This is an active execution of an offensive security tool with significant potential for misuse in credential theft attacks.

From the tool's definition Advanced password recovery using GPU acceleration

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hashcat_crack Rate-limited

hashcat_crack 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": {
    "hashcat_crack": {
      "limits": [
        {
          "counter": "hashcat_crack_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 MCP Kali Pentest, so you can run agents against it safely.

FAQ

Questions about hashcat_crack

What does the hashcat_crack tool do? +

Advanced password recovery using GPU acceleration. It is categorised as a Execute tool in the MCP Kali Pentest MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on hashcat_crack? +

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

What risk level is hashcat_crack? +

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

Can I rate-limit hashcat_crack? +

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

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

hashcat_crack is provided by the MCP Kali Pentest MCP server (root1856/mcpkali). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.