CVE-2022-28708 Denial of service in BIG-IP

Medium 5.9 Published 5 May 2022 Updated 17 Sep 2024

A crafted DNS response can crash the Traffic Management Microkernel process in F5 BIG-IP when specific profiles are enabled, causing a denial of service.

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-2022-28708?

CVE-2022-28708 is a medium-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 5 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2 and 15.1.x versions prior to 15.1.5.1, when a BIG-IP DNS resolver-enabled, HTTP-Explicit or SOCKS profile is configured on a virtual server, an undisclosed DNS response can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Weakness: CWE-20

Which versions are affected by CVE-2022-28708?

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-2022-28708?

No fix has been published for CVE-2022-28708 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-2022-28708 being exploited?

There is no known exploitation of CVE-2022-28708 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-8h63-c783-x8gw.