AI agents use create_wildcard_fqdn to create or update resources in Fortimanager — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Fortimanager environment.
The 'create_' prefix and wildcard FQDN context indicate this tool creates/adds new firewall policy objects in FortiManager. This is a reversible write operation (the FQDN can be deleted), not destructive. No code execution, financial impact, or data deletion involved. Severity is high because misconfigured wildcard FQDNs could create broad security policy changes affecting network filtering.
From the tool's definition Tool name is 'create_wildcard_fqdn' which performs a create operation. Description is empty, limiting confidence.
Documented attack patterns abuse exactly the kind of access create_wildcard_fqdn gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Fortimanager, and nothing reaches the server without passing your rules. This is the rule we recommend for create_wildcard_fqdn:
{
"version": "1",
"default": "deny",
"tools": {
"create_wildcard_fqdn": {
"limits": [
{
"counter": "create_wildcard_fqdn_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_wildcard_fqdn 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.
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create_wildcard_fqdn. It is categorised as a Write tool in the Fortimanager MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Fortimanager MCP server in PolicyLayer and add a rule for create_wildcard_fqdn: 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. Nothing to install.
create_wildcard_fqdn 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 create_wildcard_fqdn 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 create_wildcard_fqdn. 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.
create_wildcard_fqdn is provided by the Fortimanager MCP server (jmpijll/fortimanager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Fortimanager, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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584 Fortimanager tools catalogued and risk-classified — across an index of 43,000+ MCP servers.