Comprehensive DNS enumeration with zone transfer attempts
AI agents invoke dns_enum to trigger actions in Kali MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
DNS enumeration actively queries DNS servers and attempts zone transfers, which are external network operations that probe target infrastructure. Zone transfer attempts are active reconnaissance actions that interact with remote systems, going beyond passive reads. In a penetration testing context, misuse could expose sensitive network topology and trigger security alerts on target systems, warranting high severity.
From the tool's definition Comprehensive DNS enumeration with zone transfer attempts
Documented attack patterns abuse exactly the kind of access dns_enum gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kali MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for dns_enum:
{
"version": "1",
"default": "deny",
"tools": {
"dns_enum": {
"limits": [
{
"counter": "dns_enum_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}dns_enum stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Comprehensive DNS enumeration with zone transfer attempts. It is categorised as a Execute tool in the Kali MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Kali MCP Server MCP server in PolicyLayer and add a rule for dns_enum: 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 Kali MCP Server. Nothing to install.
dns_enum is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the dns_enum 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 dns_enum. 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.
dns_enum is provided by the Kali MCP Server MCP server (k3nn3dy-ai/kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kali MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
36 Kali MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.