Ensure No Firewall Rules with source 'ANY', service 'ANY' and destination 'ANY' from 'WAN' Zone

HighLevel 1Manual reviewsophos

Description

Allowed firewall rules with no specific source or ANY service definitions from WAN/untrusted zone could lead to unintended exposure to the outside threats. Reviewed in the Sophos Firewall web admin console (SFOS has no plain-text configuration export to audit offline).

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

Navigate to 'Protect > Rules and policies > Firewall rules'. Filter 'Destination zone' to 'LAN' or 'DMZ'. Verify that no allowed firewall rules from 'WAN' zone with service definition 'ANY' to 'LAN' or 'DMZ' zone with destination network set to 'ANY'.

How it is fixed

Fix method: Guidance or infrastructure patch

Navigate to 'Protect > Rules and policies > Firewall rules'. Filter 'Destination zone' to 'LAN' or 'DMZ'. Remove allowed firewall rules from 'WAN' zone with service definition 'ANY' to 'LAN' or 'DMZ' zone with destination network set to 'ANY'. Or change the rule to specific source/destination with target service definition.

Properties

Operating systems: Any
Tags: sophosfirewall-policy
Reference: CIS Sophos Firewall v22 Benchmark v1.0.0 - 5.10 Ensure No Firewall Rules with source 'ANY', service 'ANY' and destination 'ANY' from 'WAN' Zone