testssl_test · Kali Linux Security Tools MCP Server MCP

WHAT IT DOES

What testssl_test does on Kali Linux Security Tools MCP Server

AI agents invoke testssl_test to trigger actions in Kali Linux Security Tools 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 testssl_test needs a policy

This tool executes testssl.sh, an external network scanning program that actively connects to and probes remote servers to assess their SSL/TLS configuration. It is not a passive read; it triggers outbound network operations against target hosts. Misuse against unauthorized servers constitutes illegal network scanning, giving it high severity.

From the tool's definition 'Comprehensive SSL/TLS testing using testssl.sh' — actively runs the testssl.sh tool against external servers; 'WARNING: Only test authorized servers' implies active probing/scanning of remote systems

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

testssl_test Rate-limited

testssl_test 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": {
    "testssl_test": {
      "limits": [
        {
          "counter": "testssl_test_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 Security Tools MCP Server, so you can run agents against it safely.

FAQ

Questions about testssl_test

What does the testssl_test tool do? +

Comprehensive SSL/TLS testing using testssl.sh. WARNING: Only test authorized servers. It is categorised as a Execute tool in the Kali Linux Security Tools 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 testssl_test? +

Register the Kali Linux Security Tools MCP Server MCP server in PolicyLayer and add a rule for testssl_test: 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 Security Tools MCP Server. Nothing to install.

What risk level is testssl_test? +

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

Can I rate-limit testssl_test? +

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

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

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