AI agents call pfsense_get_firewall_traffic_shaper_limiter_bandwidth 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.
The GET method and 'get' prefix indicate this retrieves existing configuration data without modifying state. However, severity is medium rather than low because the server provides 'full control over pfSense firewalls' and this tool accesses security-sensitive firewall traffic shaping configuration that could inform an attacker about network policies.
From the tool's definition Tool name contains 'get' and description shows GET HTTP method to retrieve firewall traffic shaper limiter bandwidth information. This is a read operation that queries data about traffic shaping configuration.
Attacks that exploit this kind of access
GET /api/v2/firewall/traffic_shaper/limiter/bandwidth. 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_get_firewall_traffic_shaper_limiter_bandwidth: 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_get_firewall_traffic_shaper_limiter_bandwidth 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_get_firewall_traffic_shaper_limiter_bandwidth 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_get_firewall_traffic_shaper_limiter_bandwidth. 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_get_firewall_traffic_shaper_limiter_bandwidth 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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