CVE-2022-26071 Security feature bypass in BIG-IP

High 7.4 Published 5 May 2022 Updated 17 Sep 2024

An attacker can bypass UDP source port randomization to scan open ports on F5 BIG-IP devices, undermining network security controls.

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-2022-26071?

CVE-2022-26071 is a high-severity 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, 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, a flaw in the way reply ICMP packets are limited in the Traffic Management Microkernel (TMM) allows an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Weakness: CWE-330

Which versions are affected by CVE-2022-26071?

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-2022-26071?

No fix has been published for CVE-2022-26071 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-26071 being exploited?

There is no known exploitation of CVE-2022-26071 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-6rjr-wmhf-5x38.