ctf_list_challenges

List all available CTF challenges.

SERVERZebbern Kali MCP SOURCEzebbern/zebbern-kali-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/zebbern-zebbern-kali-mcp/ctf-list-challenges.md

WHAT IT DOES

What ctf_list_challenges does on Zebbern Kali MCP

AI agents call ctf_list_challenges to retrieve information from Zebbern Kali MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why ctf_list_challenges is rated Low

This tool retrieves a list of available CTF challenges, which is a non-destructive read operation. Despite the server providing access to penetration testing tools (some of which are clearly Execute/Destructive like ad_psexec, ad_secretsdump, ad_wmiexec), this specific tool merely enumerates existing challenges without side effects.

From the tool's definition Tool name 'ctf_list_challenges' and description 'List all available CTF challenges' indicate a read-only query operation that retrieves information without modifying or executing anything.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ctf_list_challenges safely

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

ctf_list_challenges Allowed

ctf_list_challenges is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ctf_list_challenges": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about ctf_list_challenges

What does the ctf_list_challenges tool do? +

List all available CTF challenges. It is categorised as a Read tool in the Zebbern Kali MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ctf_list_challenges? +

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

What risk level is ctf_list_challenges? +

ctf_list_challenges is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit ctf_list_challenges? +

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

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

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

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