AI agents call pfsense_list_services_free_radius_users to retrieve information from Pfsense 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 FreeRADIUS, a network access server component. While Read category (no direct destructive capability), it poses medium severity because exposed user lists could reveal authentication credentials or user identity information used in network access control, creating a data disclosure risk if an AI agent is compromised or misused.
From the tool's definition Tool name contains 'list' which indicates data retrieval. The description is empty, but the name 'pfsense_list_services_free_radius_users' clearly suggests querying/listing FreeRADIUS user data from the pfSense firewall.
Attacks that exploit this kind of access
pfsense_list_services_free_radius_users. It is categorised as a Read tool in the Pfsense MCP Server, which means it retrieves data without modifying state.
Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_list_services_free_radius_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 Pfsense. Nothing to install.
pfsense_list_services_free_radius_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 pfsense_list_services_free_radius_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 pfsense_list_services_free_radius_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.
pfsense_list_services_free_radius_users is provided by the Pfsense MCP server (abl030/pfsense-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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