CVE-2021-23031 Privilege escalation in BIG-IP Advanced WAF and BIG-IP ASM
An authenticated user can escalate privileges in the BIG-IP Advanced WAF and ASM Configuration utility, requiring an upgrade to secure the system.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-23031?
CVE-2021-23031 is a critical vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 14 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4.1, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and 11.6.x before 11.6.5.3, an authenticated user may perform a privilege escalation on the BIG-IP Advanced WAF and ASM Configuration utility. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-78
Which versions are affected by CVE-2021-23031?
It affects 2 products.
Products include F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager.
How do I fix CVE-2021-23031?
No fix has been published for CVE-2021-23031 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23031 being exploited?
There is no known exploitation of CVE-2021-23031 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Advanced Web Application Firewall
- CVE-2021-23029 Server-side request forgery in BIG-IP Advanced WAF and BIG-IP ASM
- CVE-2021-23014 Missing authorization in BIG-IP ASM/Advanced WAF
- CVE-2021-22993 Cross-site scripting in BIG-IP Advanced WAF and BIG-IP ASM
- CVE-2026-40060 BIG-IP Advanced WAF and ASM vulnerability
- CVE-2026-41227 BIG-IP HTTP/2 Layer 7 Dos Protection vulnerability
All F5 Big-Ip Advanced Web Application Firewall vulnerabilities
Sources
Also known as GHSA-9qcg-p796-2q2v.