CVE-2020-5923 Security feature bypass in BIG-IP, BIG-IQ
Attackers can bypass Self-IP port lockdown restrictions using IPv6 link-local addresses on F5 BIG-IP and BIG-IQ devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5923?
CVE-2020-5923 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 26 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In BIG-IP versions 15.0.0-15.1.0.4, 14.1.0-14.1.2.6, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1 and BIG-IQ versions 5.4.0-7.0.0, Self-IP port-lockdown bypass via IPv6 link-local addresses.
Which versions are affected by CVE-2020-5923?
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 Domain Name System and 6 more.
How do I fix CVE-2020-5923?
No fix has been published for CVE-2020-5923 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-5923 being exploited?
There is no known exploitation of CVE-2020-5923 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Access Policy Manager
- CVE-2023-46747 F5 BIG-IP Configuration Utility Authentication Bypass
- CVE-2022-1388 F5 BIG-IP Missing Authentication
- CVE-2021-22986 F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution
- CVE-2021-22991 F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- CVE-2020-5902 F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution
Sources
Also known as GHSA-j523-c2p6-59vf.