get_listener

Get listener details by name (generic)

SERVERCobalt Strike MCP Server SOURCEmickeydb/cobalt-strike-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mickeydb-cobalt-strike-mcp/get-listener.md

WHAT IT DOES

What get_listener does on Cobalt Strike MCP Server

AI agents call get_listener to retrieve information from Cobalt Strike MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_listener is rated Low

This tool retrieves listener configuration details by name, which is a read-only query operation. However, severity is elevated to 'high' because: (1) Cobalt Strike is a commercial red team toolkit used for adversarial operations; (2) listener details may reveal sensitive infrastructure configuration, command & control server addresses, or operational parameters; (3) an AI agent with access to this tool could map…

From the tool's definition Tool is named 'get_listener' and described as 'Get listener details by name (generic)' — retrieves information about Cobalt Strike listeners without modifying or executing operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_listener safely

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

get_listener Allowed

get_listener is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_listener": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Cobalt Strike MCP Server, apply this rule, and every get_listener call is checked against it from then on.

FAQ

Questions about get_listener

What does the get_listener tool do? +

Get listener details by name (generic). It is categorised as a Read tool in the Cobalt Strike MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_listener? +

Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for get_listener: 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 get_listener? +

get_listener is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_listener? +

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

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

get_listener 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.

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