AI agents call pfsense_get_vpn_ipsec_phase1 to retrieve information from Pfsense without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves VPN IPSec phase 1 configuration details without creating, modifying, or deleting any data. While it reads sensitive security information (VPN configurations), the GET operation itself causes no side effects. Severity is medium due to the sensitive nature of VPN configuration data that could be valuable for reconnaissance in a compromised context, but the read-only nature prevents direct harm.
From the tool's definition GET /api/v2/vpn/ipsec/phase1 — uses HTTP GET method to retrieve IPSec phase 1 VPN configuration data with no modification capability.
Attacks that exploit this kind of access
GET /api/v2/vpn/ipsec/phase1. It is categorised as a Read tool in the Pfsense MCP Server, which means it retrieves data without modifying state.
Register the Pfsense MCP server in PolicyLayer and add a rule for pfsense_get_vpn_ipsec_phase1: 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_get_vpn_ipsec_phase1 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 pfsense_get_vpn_ipsec_phase1 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_get_vpn_ipsec_phase1. 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_get_vpn_ipsec_phase1 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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