BIG-IP - Authentication Bypass (CVE-2022-1388)
Description
On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
psychologyCrowdSec Analysis
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.
CrowdSec network data shows that most actors exploiting CVE-2022-1388 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2022-1388 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2022-1388 is currently experiencing high visibility and active exploitation across the internet.
Exploitation attempts are generally focused on requests to the /mgmt/tm/util/bash endpoint.
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| Event | Date |
|---|---|
| CVE Published | 2022-05-05 |
| CISA KEV | 2022-05-10 |
| CISA Remediation Deadline | 2022-05-31 |
| Rule Released | 2025-04-01 |
| CrowdSec First Seen | 2025-04-01 |