pfsense_delete_system_certificate_authorities
A destructive tool on the Pfsense MCP server.
This record as markdown: /tools/abl030-pfsense-mcp/pfsense-delete-system-certificate-authorities.md
What pfsense_delete_system_certificate_authorities does on Pfsense
AI agents call pfsense_delete_system_certificate_authorities to permanently remove resources in Pfsense, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why pfsense_delete_system_certificate_authorities is rated Critical
Deleting certificate authorities from a firewall is an irreversible destructive action that removes critical security infrastructure. This could break VPN connections, HTTPS inspection, or other certificate-based security features. The blast radius is critical as it affects firewall security posture and potentially rendering security features inoperable.
From the tool's definition Tool name contains 'delete_system_certificate_authorities' - the verb 'delete' combined with modification of system-level certificate authorities indicates irreversible deletion of security infrastructure.
Attacks that exploit this kind of access
The rule that runs pfsense_delete_system_certificate_authorities 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_delete_system_certificate_authorities, this is the rule to start with:
pfsense_delete_system_certificate_authorities is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Pfsense, apply this rule, and every pfsense_delete_system_certificate_authorities call is checked against it from then on.
Questions about pfsense_delete_system_certificate_authorities
pfsense_delete_system_certificate_authorities is a destructive tool on the Pfsense MCP server. It is categorised as a Destructive tool in the Pfsense MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_delete_system_certificate_authorities: 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.
pfsense_delete_system_certificate_authorities is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the pfsense_delete_system_certificate_authorities 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 pfsense_delete_system_certificate_authorities. 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.
pfsense_delete_system_certificate_authorities 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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