CVE-2020-5945 Cross-site scripting in BIG-IP

High 8.4 Published 5 Nov 2020 Updated 4 Aug 2024

Stored XSS in BIG-IP TMUI allows resource admins to escalate privileges to full admin access.

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

What is CVE-2020-5945?

CVE-2020-5945 is a high-severity cross-site scripting vulnerability in F5 Big-Ip Access Policy Manager, published on 5 Nov 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

In BIG-IP versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, and 14.1.0-14.1.2.7, undisclosed TMUI page contains a stored cross site scripting vulnerability (XSS). The issue allows a minor privilege escalation for resource admin to escalate to full admin.

Weakness: CWE-79

Which versions are affected by CVE-2020-5945?

It affects 11 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Domain Name System and 5 more.

How do I fix CVE-2020-5945?

No fix has been published for CVE-2020-5945 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-2020-5945 being exploited?

There is no known exploitation of CVE-2020-5945 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-ccx5-3fhr-78m9.