List firewall policies (zone-based rules) at a site. Returns: id, name, enabled, action (object with type field), source/destination (zone reference + trafficFilter), ipProtocolScope, connectionStateFilter, ipsecFilter, schedule, loggingEnabled, index, description, metadata.origin. Protocols/port...
AI agents call unifi_list_firewall_policies to retrieve information from UniFi Network 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 and queries existing firewall policy configurations without modifying, deleting, or executing any changes. It is a pure read operation that has no side effects on the network infrastructure. The severity is low because viewing firewall policies does not directly impact network operations or security posture.
From the tool's definition Tool name is 'unifi_list_firewall_policies' and description explicitly states 'List firewall policies' and 'Returns: id, name, enabled, action...' indicating data retrieval only.
Attacks that exploit this kind of access
List firewall policies (zone-based rules) at a site. Returns: id, name, enabled, action (object with type field), source/destination (zone reference + trafficFilter), ipProtocolScope, connectionStateFilter, ipsecFilter, schedule, loggingEnabled, index, description, metadata.origin. Protocols/ports are encoded inside source/destination.trafficFilter, not as top-level fields. Evaluation order within a zone pair comes from unifi_get_firewall_policy_ordering. It is categorised as a Read tool in the UniFi Network MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UniFi Network MCP Server MCP server in PolicyLayer and add a rule for unifi_list_firewall_policies: 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 UniFi Network MCP Server. Nothing to install.
unifi_list_firewall_policies 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 unifi_list_firewall_policies 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 unifi_list_firewall_policies. 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.
unifi_list_firewall_policies is provided by the UniFi Network MCP Server MCP server (owine/unifi-network-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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