CVE-2019-6672 Denial of service in BIG-IP AFM
Attackers can degrade performance of F5 BIG-IP AFM systems with hardware sPVA when bad-actor detection is enabled on wildcard virtual servers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-6672?
CVE-2019-6672 is a high-severity denial of service vulnerability in F5 Big-Ip Advanced Firewall Manager, published on 27 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On BIG-IP AFM 15.0.0-15.0.1, 14.0.0-14.1.2, and 13.1.0-13.1.3.1, when bad-actor detection is configured on a wildcard virtual server on platforms with hardware-based sPVA, the performance of the BIG-IP AFM system is degraded.
Which versions are affected by CVE-2019-6672?
It affects 1 product.
Products include F5 Big-Ip Advanced Firewall Manager.
How do I fix CVE-2019-6672?
No fix has been published for CVE-2019-6672 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-6672 being exploited?
There is no known exploitation of CVE-2019-6672 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Advanced Firewall Manager
Sources
Also known as GHSA-rx3r-224f-8r7p.