CVE-2021-22993 Cross-site scripting in BIG-IP Advanced WAF and BIG-IP ASM

High 8.8 Published 31 Mar 2021 Updated 3 Aug 2024

A DOM-based XSS vulnerability in the DoS Profile properties page allows attackers to execute scripts in the context of the management interface.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-22993?

CVE-2021-22993 is a high-severity cross-site scripting vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 31 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

On BIG-IP Advanced WAF and BIG-IP ASM versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3, DOM-based XSS on DoS Profile properties page. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Weakness: CWE-79

Which versions are affected by CVE-2021-22993?

It affects 2 products.

Products include F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager.

How do I fix CVE-2021-22993?

No fix has been published for CVE-2021-22993 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-22993 being exploited?

There is no known exploitation of CVE-2021-22993 in the wild and no public exploit code.

All F5 Big-Ip Advanced Web Application Firewall vulnerabilities

Sources

Also known as GHSA-p7gr-h6mg-68g9.