CVE-2021-23033: Input Validation
On BIG-IP Advanced WAF and BIG-IP ASM version 16.x before 16.1.0x, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.x, when a WebSocket profile is configured on a virtual server, undisclosed requests can cause bd to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-23033?
CVE-2021-23033 is a vulnerability found in BIG-IP Advanced WAF and BIG-IP ASM versions 12.1.x, 13.1.x, 14.1.x, 15.1.x, and 16.x.
What is the severity of CVE-2021-23033?
The severity of CVE-2021-23033 is high with a CVSS score of 7.5.
How does CVE-2021-23033 affect F5 BIG-IP Advanced WAF and BIG-IP ASM?
CVE-2021-23033 affects F5 BIG-IP Advanced WAF and BIG-IP ASM when a WebSocket profile is configured on a virtual server, allowing undisclosed requests to cause bd termination.
Which versions of F5 BIG-IP Advanced WAF and BIG-IP ASM are affected by CVE-2021-23033?
CVE-2021-23033 affects versions 12.1.x, 13.1.x, 14.1.x, 15.1.x, and 16.x of F5 BIG-IP Advanced WAF and BIG-IP ASM.
How can I fix CVE-2021-23033?
To fix CVE-2021-23033, upgrade to BIG-IP Advanced WAF and BIG-IP ASM version 16.1.0x, 15.1.3.1, 14.1.4.3, 13.1.4.1, or the latest version depending on your current version.