CVE-2023-41253 BIG-IP DNS TSIG Key vulnerability

Medium 5.5 Published 10 Oct 2023 Updated 18 Sep 2024

Attackers with audit log access can read plaintext TSIG keys, compromising DNS security on F5 BIG-IP devices.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-41253?

CVE-2023-41253 is a medium-severity vulnerability in F5 Big-Ip Domain Name System, published on 10 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

When on BIG-IP DNS or BIG-IP LTM enabled with DNS Services License, and a TSIG key is created, it is logged in plaintext in the audit log. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-532

Which versions are affected by CVE-2023-41253?

It affects 2 products.

Products include F5 Big-Ip Domain Name System, F5 Big-Ip Local Traffic Manager.

How do I fix CVE-2023-41253?

No fix has been published for CVE-2023-41253 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-41253 being exploited?

There is no known exploitation of CVE-2023-41253 in the wild and no public exploit code.

All F5 Big-Ip Domain Name System vulnerabilities

Sources

Also known as GHSA-85q5-vwqg-rm58.