CVE-2022-23018 Denial of service in BIG-IP AFM

High 7.5 Published 25 Jan 2022 Updated 3 Aug 2024

Attackers can cause Traffic Management Microkernel termination via undisclosed requests when specific HTTP profiles are enabled on BIG-IP AFM.

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-2022-23018?

CVE-2022-23018 is a high-severity denial of service vulnerability in F5 Big-Ip Advanced Firewall Manager, published on 25 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On BIG-IP AFM version 16.1.x before 16.1.2, 15.1.x before 15.1.4.1, 14.1.x before 14.1.4.5, and 13.1.x beginning in 13.1.3.4, when a virtual server is configured with both HTTP protocol security and HTTP Proxy Connect profiles, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-755

Which versions are affected by CVE-2022-23018?

It affects 1 product.

Products include F5 Big-Ip Advanced Firewall Manager.

How do I fix CVE-2022-23018?

No fix has been published for CVE-2022-23018 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-2022-23018 being exploited?

There is no known exploitation of CVE-2022-23018 in the wild and no public exploit code.

All F5 Big-Ip Advanced Firewall Manager vulnerabilities

Sources

Also known as GHSA-8c4m-pxfw-44ph.