CVE-2024-21849: BIG-IP Websockets vulnerability
First published: Wed Feb 14 2024(Updated: )
When an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Credit: f5sirt@f5.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| F5 BIG-IP Advanced Web Application Firewall | 17.1.0 | |
| F5 BIG-IP Advanced Web Application Firewall | >=16.1.0<=16.1.3 | 16.1.4 |
| F5 BIG-IP Advanced Web Application Firewall | ||
| F5 BIG-IP Advanced WAF/ASM | >=16.1.0<16.1.4 | |
| F5 Application Security Manager | >=16.1.0<16.1.4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-21849?
CVE-2024-21849 is classified as a critical vulnerability due to its potential impact on service availability.
How do I fix CVE-2024-21849?
To mitigate CVE-2024-21849, upgrade the affected F5 BIG-IP Advanced WAF/ASM to version 17.1.0 or 16.1.4.
What systems are impacted by CVE-2024-21849?
CVE-2024-21849 affects F5 BIG-IP Advanced Web Application Firewall and Application Security Manager versions 16.1.0 to 16.1.4.
What type of issue is described in CVE-2024-21849?
CVE-2024-21849 describes a termination of the Traffic Management Microkernel (TMM) process due to undisclosed traffic.
Is there a workaround for CVE-2024-21849?
Currently, the recommended action is to upgrade to a fixed version, as no specific workaround is provided for CVE-2024-21849.
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