AI agents call ips_custom_list to retrieve information from FortiOS 7 6 X MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves data about custom IPS (Intrusion Prevention System) signatures without creating, modifying, deleting, or executing any operations. It is a read-only information retrieval function. Severity is low because reading security policy configuration data poses minimal risk compared to tools that execute code or make modifications.
From the tool's definition Tool name contains 'list' and description states 'List all custom IPS signatures' — a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access ips_custom_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and FortiOS 7 6 X MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ips_custom_list:
{
"version": "1",
"default": "deny",
"tools": {
"ips_custom_list": {}
}
}ips_custom_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
List all custom IPS signatures. It is categorised as a Read tool in the FortiOS 7 6 X MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FortiOS 7 6 X MCP Server MCP server in PolicyLayer and add a rule for ips_custom_list: 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 FortiOS 7 6 X MCP Server. Nothing to install.
ips_custom_list 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 ips_custom_list 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 ips_custom_list. 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.
ips_custom_list is provided by the FortiOS 7 6 X MCP Server MCP server (paoloamato2/fortinet-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from FortiOS 7 6 X MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
240 FortiOS 7 6 X MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.