Get full details for a specific CTF challenge.
AI agents call ctf_get_challenge to retrieve information from Zebbern Kali MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about CTF challenges without modifying state, executing commands, or triggering external operations. While the broader server provides penetration testing capabilities (reflected in sibling tools like ad_psexec, ad_secretsdump), this specific tool is constrained to data retrieval.
From the tool's definition Tool name 'ctf_get_challenge' and description 'Get full details for a specific CTF challenge' indicates a retrieval operation. The verb 'Get' and absence of modification, deletion, or execution language confirm read-only semantics.
Documented attack patterns abuse exactly the kind of access ctf_get_challenge gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Zebbern Kali MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for ctf_get_challenge:
{
"version": "1",
"default": "deny",
"tools": {
"ctf_get_challenge": {}
}
}ctf_get_challenge is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get full details for a specific CTF challenge. It is categorised as a Read tool in the Zebbern Kali MCP MCP Server, which means it retrieves data without modifying state.
Register the Zebbern Kali MCP server in PolicyLayer and add a rule for ctf_get_challenge: 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.
ctf_get_challenge is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ctf_get_challenge 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.
Set action: deny in the PolicyLayer policy for ctf_get_challenge. 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.
ctf_get_challenge 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.
Deterministic rules across all 128 Zebbern Kali MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
128 Zebbern Kali MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.