update_firewall_policy · FortiManager MCP Server MCP

WHAT IT DOES

What update_firewall_policy does on FortiManager MCP Server

AI agents use update_firewall_policy to create or update resources in FortiManager MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FortiManager MCP Server environment.

WHY IT NEEDS A POLICY

Why update_firewall_policy needs a policy

This tool creates or modifies firewall policies reversibly—a Write operation. Severity is high because misconfiguration of firewall policies can expose networks to unauthorized traffic, compromise security posture, or disrupt legitimate connectivity. Confidence is 0.85 (not higher) because the tool description is empty and we rely on name semantics and server context; a full description would strengthen certainty.

From the tool's definition Tool name 'update_firewall_policy' indicates modification of firewall policy configuration. Server context shows this is a FortiManager JSON-RPC API for 'centralized firewall policy management'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_firewall_policy Rate-limited

update_firewall_policy stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_firewall_policy": {
      "limits": [
        {
          "counter": "update_firewall_policy_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches FortiManager MCP Server, so you can run agents against it safely.

FAQ

Questions about update_firewall_policy

What does the update_firewall_policy tool do? +

update_firewall_policy. It is categorised as a Write tool in the FortiManager MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_firewall_policy? +

Register the FortiManager MCP Server MCP server in PolicyLayer and add a rule for update_firewall_policy: 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 FortiManager MCP Server. Nothing to install.

What risk level is update_firewall_policy? +

update_firewall_policy is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_firewall_policy? +

Yes. Add a rate_limit block to the update_firewall_policy 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.

How do I block update_firewall_policy completely? +

Set action: deny in the PolicyLayer policy for update_firewall_policy. 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.

What MCP server provides update_firewall_policy? +

update_firewall_policy is provided by the FortiManager MCP Server MCP server (rstierli/fortimanager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.