AI agents use pfsense_create_routing_gateway_group to create or update resources in Pfsense — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pfsense environment.
This tool creates a new routing gateway group, which modifies firewall configuration reversibly (can be updated or recreated). It does not permanently delete data (ruling out Destructive), does not execute arbitrary commands (ruling out Execute), and is not financial in nature. However, misuse could disrupt network routing, cause traffic blackholing, or enable lateral movement by altering gateway failover behavior.
From the tool's definition Tool name 'pfsense_create_routing_gateway_group' indicates creation of network routing gateway groups. The server description states it 'gives AI agents full control over pfSense firewalls via the REST API v2' with tools covering 'routing' among other…
Attacks that exploit this kind of access
pfsense_create_routing_gateway_group. It is categorised as a Write tool in the Pfsense MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_create_routing_gateway_group: 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_create_routing_gateway_group is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the pfsense_create_routing_gateway_group 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_create_routing_gateway_group. 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_create_routing_gateway_group 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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