update_listener_http · Cobalt Strike MCP Server MCP

WHAT IT DOES

What update_listener_http does on Cobalt Strike MCP Server

AI agents use update_listener_http to create or update resources in Cobalt Strike MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Cobalt Strike MCP Server environment.

WHY IT NEEDS A POLICY

Why update_listener_http needs a policy

This tool modifies (not creates or deletes) listener configuration, placing it in the Write category. Severity is high because misconfiguration or unauthorized modification of C2 listeners could disrupt active red team operations, redirect traffic, or expose operational security posture.

From the tool's definition Tool named 'update_listener_http' with description 'Update an HTTP listener' indicates modification of listener configuration.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_listener_http Rate-limited

update_listener_http 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": {
    "update_listener_http": {
      "limits": [
        {
          "counter": "update_listener_http_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Cobalt Strike MCP Server, so you can run agents against it safely.

FAQ

Questions about update_listener_http

What does the update_listener_http tool do? +

Update an HTTP listener. It is categorised as a Write tool in the Cobalt Strike MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_listener_http? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for update_listener_http: 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 Cobalt Strike MCP Server. Nothing to install.

What risk level is update_listener_http? +

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

Can I rate-limit update_listener_http? +

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

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

update_listener_http is provided by the Cobalt Strike MCP Server MCP server (mickeydb/cobalt-strike-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.