CVE-2021-23004 Misconfiguration in BIG-IP
BIG-IP allows MPTCP flows on virtual servers without MPTCP enabled, potentially bypassing intended traffic handling restrictions.
- 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-2021-23004?
CVE-2021-23004 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 31 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3, Multipath TCP (MPTCP) forwarding flows may be created on standard virtual servers without MPTCP enabled in the applied TCP profile. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Which versions are affected by CVE-2021-23004?
It affects 14 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 8 more.
How do I fix CVE-2021-23004?
No fix has been published for CVE-2021-23004 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23004 being exploited?
There is no known exploitation of CVE-2021-23004 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-5vh6-hq42-m58j.