Check DNS information for a target and determine if it is publicly available.
AI agents call check_dns_info to retrieve information from Hacking Buddy MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs DNS lookup/querying, which is a read-only operation that retrieves publicly available DNS information. However, it is classified as medium severity rather than low because: (1) it is explicitly designed for offensive security reconnaissance, (2) it can be chained with other tools on this server (run_nmap, run_masscan, etc.) to map out targets for further attacks, and (3) in the context of an AI…
From the tool's definition Tool name 'check_dns_info' and description 'Check DNS information for a target and determine if it is publicly available' indicate data retrieval without modification. The action is passive reconnaissance that queries DNS records.
Attacks that exploit this kind of access
Check DNS information for a target and determine if it is publicly available. It is categorised as a Read tool in the Hacking Buddy MCP MCP Server, which means it retrieves data without modifying state.
Register the Hacking Buddy MCP server in PolicyLayer and add a rule for check_dns_info: 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 Hacking Buddy MCP. Nothing to install.
check_dns_info 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 check_dns_info 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 check_dns_info. 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.
check_dns_info is provided by the Hacking Buddy MCP server (manuelberrueta/hacking-buddy-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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