ctf_download_file

A read tool on the Zebbern Kali MCP server.

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-download-file.md

WHAT IT DOES

What ctf_download_file does on Zebbern Kali MCP

AI agents call ctf_download_file 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_download_file is rated Low

The name suggests downloading a file, which is fundamentally a read/retrieval operation with no inherent side effects on the source system. However, confidence is moderate because (1) the description is empty, leaving actual behavior unclear, and (2) the server context is Kali Linux penetration testing, where 'download' could potentially involve extracting sensitive data discovered during reconnaissance.

From the tool's definition Tool name 'ctf_download_file' indicates file retrieval operation. No description provided to clarify intended scope or constraints.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

ctf_download_file Allowed

ctf_download_file 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_download_file": {}
  }
}

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_download_file call is checked against it from then on.

FAQ

Questions about ctf_download_file

What does the ctf_download_file tool do? +

ctf_download_file is a read tool on the Zebbern Kali MCP server. 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_download_file? +

Register the Zebbern Kali MCP server in PolicyLayer and add a rule for ctf_download_file: 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_download_file? +

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

Can I rate-limit ctf_download_file? +

Yes. Add a rate_limit block to the ctf_download_file 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_download_file completely? +

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

ctf_download_file 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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