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All controls

MX-SEC-001HighCisco Meraki

Firewall rule allows any source to any destination

At a glance

Base severity

High

Area

Security Policies

Platform

Cisco Meraki

Evidence level

Fact1.00

Benchmark reference

Reads the export, not the device

ConfigProof reads a configuration export. This control is evaluated against the objects in that file, and it reports what the file says. It does not connect to the device and sees no traffic, so a finding here describes the configuration, not what the firewall is doing right now.

Why it matters

The rule permits every connection that reaches it, so every rule below it, and any segmentation the appliance is meant to enforce, has no effect.

How to fix it

Web interface

The steps below are written for the web interface. A finding raised on your own export carries the same steps with your object names filled in.

  1. In the Meraki Dashboard: Security & SD-WAN > Firewall > Layer 3 rules: replace the rule with rules for the specific networks and services needed, or remove it.

Command line

This analyzer version writes no command text for this control. The steps above are the remediation it offers.

How to confirm the fix

  • In the Meraki Dashboard: Security & SD-WAN > Firewall shows no allow rule with Any source, Any destination and Any service above the default rule.

Limits

  • No limitation is recorded for this control beyond the one that applies to all of them: it reads a configuration export.

Compliance references

No benchmark recommendation is mapped to this control in this version.

See it on your own firewall

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