AI agents call zeek_query_dhcp to retrieve information from Zeek without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and searches DHCP log data to answer questions about network devices, their leases, and hostname mappings. It performs read-only queries over existing security monitoring data with no side effects, data modification, or execution of arbitrary commands.
From the tool's definition Tool description states "Search Zeek DHCP logs" and lists use cases "asset inventory and identifying rogue devices" — these are query and analysis operations with no modification, deletion, or code execution capabilities.
Attacks that exploit this kind of access
Search Zeek DHCP logs for lease assignments, device discovery, and hostname-to-IP mapping. Useful for asset inventory and identifying rogue devices. It is categorised as a Read tool in the Zeek MCP Server, which means it retrieves data without modifying state.
Register the Zeek MCP server in PolicyLayer and add a rule for zeek_query_dhcp: 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 Zeek. Nothing to install.
zeek_query_dhcp 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 zeek_query_dhcp 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 zeek_query_dhcp. 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.
zeek_query_dhcp is provided by the Zeek MCP server (solomonneas/zeek-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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