CVE-2024-21763 BIG-IP AFM vulnerability

High 7.5 Published 14 Feb 2024 Updated 6 Nov 2024

Attackers can cause TMM termination via undisclosed queries when AFM DoS profiles with NXDOMAIN detection are configured, requiring an upgrade.

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-2024-21763?

CVE-2024-21763 is a high-severity denial of service vulnerability in F5 Big-Ip Advanced Firewall Manager, published on 14 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When BIG-IP AFM Device DoS or DoS profile is configured with NXDOMAIN attack vector and bad actor detection, undisclosed queries 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-476

Which versions are affected by CVE-2024-21763?

It affects 1 product.

Products include F5 Big-Ip Advanced Firewall Manager.

How do I fix CVE-2024-21763?

No fix has been published for CVE-2024-21763 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-2024-21763 being exploited?

There is no known exploitation of CVE-2024-21763 in the wild and no public exploit code.

All F5 Big-Ip Advanced Firewall Manager vulnerabilities

Sources

Also known as GHSA-v8xr-rghj-pvv9.