F5 BIG-IP TMUI - RCE (CVE-2020-5902)
Description
In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.
psychologyCrowdSec Analysis
CVE-2020-5902 is a critical remote code execution vulnerability in the Traffic Management User Interface (TMUI) of F5 BIG-IP systems, potentially allowing attackers to execute arbitrary commands.
CrowdSec has been tracking this vulnerability and its exploits since 9th of December 2021.
Based on data from the CrowdSec network, nearly all observed exploitation of CVE-2020-5902 is fully opportunistic, with attackers indiscriminately scanning the entire internet. These attacks are automated and lack any form of target selection or reconnaissance. Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2020-5902 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2020-5902 is currently experiencing high visibility and active exploitation across the internet.
Exploitation attempts can often be identified by requests to URLs containing /tmui/login.jsp/..;/tmui.
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| Event | Date |
|---|---|
| CVE Published | 2020-07-01 |
| CISA KEV | 2021-11-03 |
| Rule Released | 2021-12-09 |
| CrowdSec First Seen | 2021-12-09 |
| CISA Remediation Deadline | 2022-05-03 |
Related Weaknesses
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.