CVE-2023-42768 BIG-IP iControl REST vulnerability

High 7.2 Published 10 Oct 2023 Updated 19 Sep 2024

Non-admin users retain unauthorized access to iControl REST admin resources after role reversion, allowing privilege escalation on F5 BIG-IP devices.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-42768?

CVE-2023-42768 is a high-severity missing authorization vulnerability in F5 Big-Ip Access Policy Manager, published on 10 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

When a non-admin user has been assigned an administrator role via an iControl REST PUT request and later the user's role is reverted back to a non-admin role via the Configuration utility, tmsh, or iControl REST. BIG-IP non-admin user can still have access to iControl REST admin resource. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-613

Which versions are affected by CVE-2023-42768?

It affects 19 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager and 13 more.

How do I fix CVE-2023-42768?

No fix has been published for CVE-2023-42768 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-42768 being exploited?

There is no known exploitation of CVE-2023-42768 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-6944-qqg6-vmm7.