Post-Auth Config Change on Network Appliance (3P)

Hunts for post-auth configuration tampering on Fortinet, Palo Alto, and Cisco appliances in CommonSecurityLog, including firewall policy weakening, local admin changes, auth updates, and VPN/routing/ACL modifications.

Detection logic

Detection requirements

Platform: Containers ESXi IaaS Identity Provider Linux macOS Network Devices Office Suite SaaS Windows
The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.
Log source product: cefama
Log source service: commonsecuritylog

Detection rules

Post-Auth Config Change on Network Appliance (3P)

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules