testssl_scan

Test SSL/TLS configuration and vulnerabilities with testssl.sh

SERVERKali Linux MCP Server SOURCEalessandroannini/kali-mcp-server

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/alessandroannini-kali-mcp-server/testssl-scan.md

WHAT IT DOES

What testssl_scan does on Kali Linux MCP Server

AI agents invoke testssl_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.

RISK

Why testssl_scan is rated High

This tool executes testssl.sh, an external security scanning program that probes SSL/TLS configurations on remote hosts. It runs active network operations against targets, placing it in the Execute category. Severity is high because it can be directed at arbitrary hosts to probe for vulnerabilities, potentially constituting unauthorized security scanning of third-party systems if misused by an AI agent.

From the tool's definition 'Test SSL/TLS configuration and vulnerabilities with testssl.sh' — runs the testssl.sh tool against a target host, triggering external network operations

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs testssl_scan safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Kali Linux MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For testssl_scan, this is the rule to start with:

testssl_scan Rate-limited

testssl_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": {
    "testssl_scan": {
      "limits": [
        {
          "counter": "testssl_scan_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Kali Linux MCP Server, apply this rule, and every testssl_scan call is checked against it from then on.

FAQ

Questions about testssl_scan

What does the testssl_scan tool do? +

Test SSL/TLS configuration and vulnerabilities with testssl.sh. 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 testssl_scan? +

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

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

Can I rate-limit testssl_scan? +

Yes. Add a rate_limit block to the testssl_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 testssl_scan completely? +

Set action: deny in the PolicyLayer policy for testssl_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 testssl_scan? +

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

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