AI agents use create_adom_revision 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.
This tool creates a new revision in FortiManager's ADOM configuration system. Creating revisions is a reversible modification action (revisions can typically be deleted or reverted), making it a Write operation. The high severity reflects that improper revisions could affect firewall policy versioning and management workflows across managed devices.
From the tool's definition Tool name is 'create_adom_revision' indicating creation of a new revision in an ADOM (Administrative Domain) within FortiManager.
Documented attack patterns abuse exactly the kind of access create_adom_revision 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_adom_revision:
{
"version": "1",
"default": "deny",
"tools": {
"create_adom_revision": {
"limits": [
{
"counter": "create_adom_revision_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_adom_revision 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_adom_revision. 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_adom_revision: 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_adom_revision 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_adom_revision 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_adom_revision. 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_adom_revision 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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