pfsense_replace_system_restapi_access_list

PUT /api/v2/system/restapi/access_list

SERVERPfsense SOURCEabl030/pfsense-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/abl030-pfsense-mcp/pfsense-replace-system-restapi-access-list.md

WHAT IT DOES

What pfsense_replace_system_restapi_access_list does on Pfsense

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

RISK

Why pfsense_replace_system_restapi_access_list is rated Medium

This tool modifies (replaces) the REST API access control list, which is a reversible write operation. While it affects security access controls for the REST API itself, it is not destructive (data can be restored) and does not delete data.

From the tool's definition Tool name contains 'replace' and description shows PUT method to '/api/v2/system/restapi/access_list', which modifies REST API access control lists. PUT is a write operation that updates configuration.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs pfsense_replace_system_restapi_access_list safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Pfsense, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pfsense_replace_system_restapi_access_list, this is the rule to start with:

pfsense_replace_system_restapi_access_list Rate-limited

pfsense_replace_system_restapi_access_list 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": {
    "pfsense_replace_system_restapi_access_list": {
      "limits": [
        {
          "counter": "pfsense_replace_system_restapi_access_list_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Pfsense, apply this rule, and every pfsense_replace_system_restapi_access_list call is checked against it from then on.

FAQ

Questions about pfsense_replace_system_restapi_access_list

What does the pfsense_replace_system_restapi_access_list tool do? +

PUT /api/v2/system/restapi/access_list. It is categorised as a Write tool in the Pfsense MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on pfsense_replace_system_restapi_access_list? +

Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_replace_system_restapi_access_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 Pfsense. Nothing to install.

What risk level is pfsense_replace_system_restapi_access_list? +

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

Can I rate-limit pfsense_replace_system_restapi_access_list? +

Yes. Add a rate_limit block to the pfsense_replace_system_restapi_access_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.

How do I block pfsense_replace_system_restapi_access_list completely? +

Set action: deny in the PolicyLayer policy for pfsense_replace_system_restapi_access_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.

What MCP server provides pfsense_replace_system_restapi_access_list? +

pfsense_replace_system_restapi_access_list is provided by the Pfsense MCP server (abl030/pfsense-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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