Enumerate users in the domain
AI agents call inject_net_users to retrieve information from Cobalt Strike MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves user account information from a domain without creating, modifying, or destroying data. It falls squarely in the Read category. Severity is medium rather than low because enumerating domain users is valuable reconnaissance that could enable lateral movement or targeted attacks, making it a moderate security risk if misused by an AI agent, though the tool itself performs no destructive actions.
From the tool's definition Tool name 'inject_net_users' and description 'Enumerate users in the domain' indicate data retrieval with no modification or deletion. The 'enumerate' verb confirms this is a query operation.
Attacks that exploit this kind of access
Enumerate users in the domain. It is categorised as a Read tool in the Cobalt Strike MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Cobalt Strike MCP Server MCP server in PolicyLayer and add a rule for inject_net_users: 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.
inject_net_users is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the inject_net_users 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.
Set action: deny in the PolicyLayer policy for inject_net_users. 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.
inject_net_users 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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