CVE-2018-15323 Denial of service in BIG-IP (LTM, AAM,AFM, Analytics, APM ASM, Edge Gateway, FPS, PSM, Websafe)

Medium 5.9 Published 31 Oct 2018 Updated 5 Aug 2024

Attackers can cause a denial of service by triggering a TMM process crash via MQTT traffic on BIG-IP devices with specific profiles.

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-2018-15323?

CVE-2018-15323 is a medium-severity denial of service vulnerability in F5 Big-Ip Access Policy Manager, published on 31 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On BIG-IP 14.0.0-14.0.0.2 or 13.0.0-13.1.1.1, in certain circumstances, when processing traffic through a Virtual Server with an associated MQTT profile, the TMM process may produce a core file and take the configured HA action.

Weakness: CWE-20

Which versions are affected by CVE-2018-15323?

It affects 13 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 Domain Name System, F5 Big-Ip Edge Gateway and 7 more.

How do I fix CVE-2018-15323?

No fix has been published for CVE-2018-15323 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-2018-15323 being exploited?

There is no known exploitation of CVE-2018-15323 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-v644-xf23-m93q.