exploit_discover_one_gadget

Discover one-gadget (single-address shell-spawning) offsets for common libc versions.

SERVERJshookmcp SOURCE@jshookmcp/jshook

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/io-github-vmoranv-jshookmcp/exploit-discover-one-gadget.md

WHAT IT DOES

What exploit_discover_one_gadget does on Jshookmcp

AI agents invoke exploit_discover_one_gadget to trigger actions in Jshookmcp. 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 exploit_discover_one_gadget is rated High

This tool identifies shell-spawning gadgets in libc — primitives used to achieve arbitrary code execution (e.g., spawning /bin/sh). While the tool itself performs discovery/analysis rather than direct execution, its sole purpose is to enable exploitation by providing the offsets needed to spawn a shell, making it a critical enabler of Execute-category attacks.

From the tool's definition Discover one-gadget (single-address shell-spawning) offsets

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs exploit_discover_one_gadget safely

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

exploit_discover_one_gadget Rate-limited

exploit_discover_one_gadget 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": {
    "exploit_discover_one_gadget": {
      "limits": [
        {
          "counter": "exploit_discover_one_gadget_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 Jshookmcp, apply this rule, and every exploit_discover_one_gadget call is checked against it from then on.

FAQ

Questions about exploit_discover_one_gadget

What does the exploit_discover_one_gadget tool do? +

Discover one-gadget (single-address shell-spawning) offsets for common libc versions. It is categorised as a Execute tool in the Jshookmcp MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on exploit_discover_one_gadget? +

Register the Jshook MCP server in PolicyLayer and add a rule for exploit_discover_one_gadget: 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 Jshookmcp. Nothing to install.

What risk level is exploit_discover_one_gadget? +

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

Can I rate-limit exploit_discover_one_gadget? +

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

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

exploit_discover_one_gadget is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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