BIG-IP - Authentication Bypass (CVE-2022-1388)

CVE-2022-1388 is a critical vulnerability in F5 BIG-IP that enables attackers to bypass iControl REST authentication through specially crafted requests, potentially leading to remote code execution on affected systems.

CrowdSec has been tracking this vulnerability and its exploits since 1st of April 2025.

According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2022-1388 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2022-1388 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2022-1388 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Exploitation attempts are generally focused on requests to the /mgmt/tm/util/bash endpoint.