nmap_write_nse_script

Write custom NSE script and update DB.

SERVERHercules MCP SOURCE0xmihirk/hercules-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xmihirk-hercules-mcp/nmap-write-nse-script.md

WHAT IT DOES

What nmap_write_nse_script does on Hercules MCP

AI agents invoke nmap_write_nse_script to trigger actions in Hercules MCP. 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 nmap_write_nse_script is rated High

Although the tool writes a file (Write), the artifact created is executable code (an NSE script) that will run during Nmap scans and can perform arbitrary network operations, exploitation attempts, or data exfiltration. In a penetration testing/Kali Linux context, this is effectively code execution capability. The 'update DB' component also modifies system state.

From the tool's definition 'Write custom NSE script and update DB' — creates executable NSE (Nmap Scripting Engine) scripts that can run arbitrary code during network scans, and modifies the NSE script database

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs nmap_write_nse_script safely

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

nmap_write_nse_script Rate-limited

nmap_write_nse_script 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": {
    "nmap_write_nse_script": {
      "limits": [
        {
          "counter": "nmap_write_nse_script_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 Hercules MCP, apply this rule, and every nmap_write_nse_script call is checked against it from then on.

FAQ

Questions about nmap_write_nse_script

What does the nmap_write_nse_script tool do? +

Write custom NSE script and update DB. It is categorised as a Execute tool in the Hercules MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on nmap_write_nse_script? +

Register the Hercules MCP server in PolicyLayer and add a rule for nmap_write_nse_script: 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 Hercules MCP. Nothing to install.

What risk level is nmap_write_nse_script? +

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

Can I rate-limit nmap_write_nse_script? +

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

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

nmap_write_nse_script is provided by the Hercules MCP server (0xmihirk/hercules-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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