High Risk →

send_to_process

Send data to the target process through PTY in raw mode.

How to control send_to_process ↓

AI agents invoke send_to_process to trigger actions in Pwndbg. 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.

High Risk

This tool sends arbitrary data directly to a running process via a PTY in raw mode, enabling interaction with the process's input stream. This constitutes executing/triggering external operations on a live process, potentially injecting commands, exploit payloads, or control sequences.

From the tool's definition Send data to the target process through PTY in raw mode

Documented attack patterns abuse exactly the kind of access send_to_process gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and Pwndbg, and nothing reaches the server without passing your rules. This is the rule we recommend for send_to_process:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "send_to_process": {
      "limits": [
        {
          "counter": "send_to_process_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

send_to_process 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.

  1. Create a free account and register Pwndbg — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
RATE-LIMIT THIS TOOL →

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Go deeper

What does the send_to_process tool do? +

Send data to the target process through PTY in raw mode. It is categorised as a Execute tool in the Pwndbg MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on send_to_process? +

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

What risk level is send_to_process? +

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

Can I rate-limit send_to_process? +

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

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

send_to_process is provided by the Pwndbg MCP server (rocketmadev/pwndbg-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Pwndbg tool call.

Deterministic rules across all 17 Pwndbg tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

17 Pwndbg tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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