Summarize externally reachable Fortigate services and published internal services.
AI agents call fortigate_get_external_attack_surface to retrieve information from Fortigate MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and summarizes information about the attack surface (exposed services and published internal services) of a Fortigate firewall. It performs reconnaissance and diagnostic queries without modifying any configuration, state, or data. The blast radius of misuse is limited to information disclosure of already-public or already-accessible network information, which is low severity.
From the tool's definition Tool description states 'Summarize externally reachable Fortigate services' — a summarization/querying operation with no modification capability.
Attacks that exploit this kind of access
Summarize externally reachable Fortigate services and published internal services. It is categorised as a Read tool in the Fortigate MCP MCP Server, which means it retrieves data without modifying state.
Register the Fortigate MCP server in PolicyLayer and add a rule for fortigate_get_external_attack_surface: 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 Fortigate MCP. Nothing to install.
fortigate_get_external_attack_surface 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 fortigate_get_external_attack_surface 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 fortigate_get_external_attack_surface. 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.
fortigate_get_external_attack_surface is provided by the Fortigate MCP server (picaresco/mcp-fortigate). 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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