CVE-2019-6639 Cross-site scripting in BIG-IP (AFM, PEM)
A stored XSS vulnerability in F5 BIG-IP TMUI allows malicious administrators to inject scripts, potentially compromising the control plane interface.
- 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-2019-6639?
CVE-2019-6639 is a medium-severity cross-site scripting vulnerability in F5 Big-Ip Advanced Firewall Manager, published on 3 Jul 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
On BIG-IP (AFM, PEM) 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.1-11.5.8, an undisclosed TMUI pages for AFM and PEM Subscriber management are vulnerable to a stored cross-site scripting (XSS) issue. This is a control plane issue only and is not accessible from the data plane. The attack requires a malicious resource administrator to store the XSS.
Weakness: CWE-79
Which versions are affected by CVE-2019-6639?
It affects 2 products.
Products include F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Policy Enforcement Manager.
How do I fix CVE-2019-6639?
No fix has been published for CVE-2019-6639 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-2019-6639 being exploited?
There is no known exploitation of CVE-2019-6639 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Advanced Firewall Manager
Sources
Also known as GHSA-fgc7-wrvm-3ph2.