CVE-2021-22979 Cross-site scripting in BIG-IP

Medium 6.1 Published Updated

Reflected XSS in BIG-IP Configuration utility allows attackers to execute JavaScript in the context of logged-in users when Fraud Protection Service is enabled.

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-2021-22979?

CVE-2021-22979 is a medium-severity cross-site scripting vulnerability in F5 Big-Ip Access Policy Manager, published on 12 Feb 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 version 16.0.x before 16.0.1, 15.1.x before 15.1.1, 14.1.x before 14.1.2.8, 13.1.x before 13.1.3.5, and all 12.1.x versions, a reflected Cross-Site Scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Configuration utility when Fraud Protection Service is provisioned and allows an attacker to execute JavaScript in the context of the current logged-in user. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Weakness: CWE-79

Which versions are affected by CVE-2021-22979?

It affects 14 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager and 8 more.

How do I fix CVE-2021-22979?

No fix has been published for CVE-2021-22979 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-2021-22979 being exploited?

There is no known exploitation of CVE-2021-22979 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-q59f-w87f-qwmr.

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