CVE-2023-22323 BIG-IP SSL OCSP Authentication profile vulnerability

High 7.5 Published 1 Feb 2023 Updated 26 Mar 2025

Attackers can cause CPU resource exhaustion and denial of service on F5 BIG-IP devices if an OCSP authentication profile is configured on a virtual server.

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-2023-22323?

CVE-2023-22323 is a high-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 1 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In BIP-IP versions 17.0.x before 17.0.0.2, 16.1.x before 16.1.3.3, 15.1.x before 15.1.8.1, 14.1.x before 14.1.5.3, and all versions of 13.1.x, when OCSP authentication profile is configured on a virtual server, undisclosed requests can cause an increase in CPU resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-770

Which versions are affected by CVE-2023-22323?

It affects 12 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 Ddos Hybrid Defender and 6 more.

How do I fix CVE-2023-22323?

No fix has been published for CVE-2023-22323 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-2023-22323 being exploited?

There is no known exploitation of CVE-2023-22323 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-289w-wqhr-xg2r.