openwrt_get_firewall_rules

THE RISK

Low Risk

Why openwrt_get_firewall_rules needs a policy

This tool retrieves and displays existing firewall configuration without modifying, executing, or deleting anything. It is informational only and carries minimal risk even if misused by an AI agent, as it only exposes existing firewall policy information rather than changing network behavior or security posture.

From the tool's definition Tool name is 'openwrt_get_firewall_rules' and description states 'Get current firewall rules (iptables)' - purely a retrieval operation with no side effects.

Documented attack patterns abuse exactly the kind of access openwrt_get_firewall_rules gives an agent:

POLICY

How to control openwrt_get_firewall_rules

PolicyLayer is an MCP gateway — it sits between your AI agents and OpenWRT SSH MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for openwrt_get_firewall_rules:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "openwrt_get_firewall_rules": {}
  }
}

openwrt_get_firewall_rules is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register OpenWRT SSH MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More OpenWRT SSH MCP Server tools

Destructive openwrt_opkg_remove Remove a package using opkg Destructive openwrt_firmware_flash Flash the uploaded firmware image using sysupgrade. Execute openwrt_execute_command Execute a validated shell command on the OpenWRT router. Execute openwrt_restart_interface Restart a network interface (e.g., wan, lan, wlan0) Execute openwrt_opkg_install Install a package using opkg Execute openwrt_opkg_update Update package lists from repositories (opkg update) Execute openwrt_thread_create_network Create a new Thread network with specified parameters. Execute openwrt_thread_enable_commissioner Enable Thread Commissioner to allow new devices to join the network.

All 23 OpenWRT SSH MCP Server tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about openwrt_get_firewall_rules

What does the openwrt_get_firewall_rules tool do? +

Get current firewall rules (iptables). It is categorised as a Read tool in the OpenWRT SSH MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on openwrt_get_firewall_rules? +

Register the OpenWRT SSH MCP Server MCP server in PolicyLayer and add a rule for openwrt_get_firewall_rules: 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 OpenWRT SSH MCP Server. Nothing to install.

What risk level is openwrt_get_firewall_rules? +

openwrt_get_firewall_rules is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit openwrt_get_firewall_rules? +

Yes. Add a rate_limit block to the openwrt_get_firewall_rules 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 openwrt_get_firewall_rules completely? +

Set action: deny in the PolicyLayer policy for openwrt_get_firewall_rules. 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 openwrt_get_firewall_rules? +

openwrt_get_firewall_rules is provided by the OpenWRT SSH MCP Server MCP server (jsebgiraldo/openwrt_ssh_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every OpenWRT SSH MCP Server tool call.

Start from OpenWRT SSH MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →