target_upload_file

A write tool on the Zebbern Kali MCP server.

SERVERZebbern Kali MCP SOURCEzebbern/zebbern-kali-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/zebbern-zebbern-kali-mcp/target-upload-file.md

WHAT IT DOES

What target_upload_file does on Zebbern Kali MCP

AI agents use target_upload_file to create or update resources in Zebbern Kali MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Zebbern Kali MCP environment.

RISK

Why target_upload_file is rated Medium

File uploads can reversibly place files on target systems and are a standard step in penetration testing exploitation chains. The tool does not irreversibly delete data (not Destructive), does not move money (not Financial), and while it may be used to stage code execution, the tool itself performs the upload action rather than executing arbitrary code (not Execute).

From the tool's definition Tool name 'target_upload_file' indicates file upload functionality. No description provided, but upload operations create or modify data on a target system.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

target_upload_file Rate-limited

target_upload_file stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "target_upload_file": {
      "limits": [
        {
          "counter": "target_upload_file_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 target_upload_file call is checked against it from then on.

FAQ

Questions about target_upload_file

What does the target_upload_file tool do? +

target_upload_file is a write tool on the Zebbern Kali MCP server. It is categorised as a Write tool in the Zebbern Kali MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on target_upload_file? +

Register the Zebbern Kali MCP server in PolicyLayer and add a rule for target_upload_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 target_upload_file? +

target_upload_file is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit target_upload_file? +

Yes. Add a rate_limit block to the target_upload_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 target_upload_file completely? +

Set action: deny in the PolicyLayer policy for target_upload_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 target_upload_file? +

target_upload_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.

KEEP EXPLORING

More on Zebbern Kali, and thousands of servers like it.

This server

All 133 Zebbern Kali tools →

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write_file on 0sec → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →