jwt_security_test

Test JWT token for security vulnerabilities (none algorithm, weak secrets)

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/jwt-security-test.md

WHAT IT DOES

What jwt_security_test does on Kali Linux MCP Server

AI agents invoke jwt_security_test 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 jwt_security_test is rated High

This tool executes active security tests against JWT tokens, including attempting the 'none' algorithm bypass and brute-forcing/guessing weak secrets. It performs offensive security operations that interact with external systems or tokens, classifying it as Execute. The blast radius is high because it could be misused to forge authentication tokens or test systems without authorization.

From the tool's definition "Test JWT token for security vulnerabilities (none algorithm, weak secrets)" — actively tests/probes JWT tokens by attempting known attack techniques

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs jwt_security_test 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 jwt_security_test, this is the rule to start with:

jwt_security_test Rate-limited

jwt_security_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": {
    "jwt_security_test": {
      "limits": [
        {
          "counter": "jwt_security_test_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 jwt_security_test call is checked against it from then on.

FAQ

Questions about jwt_security_test

What does the jwt_security_test tool do? +

Test JWT token for security vulnerabilities (none algorithm, weak secrets). 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 jwt_security_test? +

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

What risk level is jwt_security_test? +

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

Can I rate-limit jwt_security_test? +

Yes. Add a rate_limit block to the jwt_security_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 jwt_security_test completely? +

Set action: deny in the PolicyLayer policy for jwt_security_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 jwt_security_test? +

jwt_security_test 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.

KEEP EXPLORING

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