CVE-2022-27181 Denial of service in BIG-IP APM

Medium 5.3 Published 5 May 2022 Updated 16 Sep 2024

Attackers can cause resource exhaustion and denial of service on F5 BIG-IP APM when NTLM authentication is enabled.

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-2022-27181?

CVE-2022-27181 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 APM 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, when APM is configured on a virtual server and the associated access profile is configured with APM AAA NTLM Auth, undisclosed requests can cause an increase in internal resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Weakness: CWE-400

Which versions are affected by CVE-2022-27181?

It affects 1 product.

Products include F5 Big-Ip Access Policy Manager.

How do I fix CVE-2022-27181?

No fix has been published for CVE-2022-27181 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-2022-27181 being exploited?

There is no known exploitation of CVE-2022-27181 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-gffv-3cv9-q7fg.