CVE-2021-23003 : Security Advisory and Response
Discover the impact of CVE-2021-23003, affecting BIG-IP versions, leading to core file generation in Traffic Management Microkernel due to undisclosed MPTCP traffic.
This CVE-2021-23003 article provides insights into a vulnerability found in 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, affecting Traffic Management Microkernel (TMM) processes.
Understanding CVE-2021-23003
This section will delve into the specifics of CVE-2021-23003, shedding light on the nature and impact of the vulnerability.
What is CVE-2021-23003?
The vulnerability exists in the Traffic Management Microkernel (TMM) process of BIG-IP versions mentioned earlier. When undisclosed MPTCP traffic traverses a standard virtual server, the TMM process may generate a core file.
The Impact of CVE-2021-23003
This security flaw can be utilized for Denial of Service (DoS) attacks, potentially disrupting system availability and performance.
Technical Details of CVE-2021-23003
This section will provide a detailed overview of the technical aspects of CVE-2021-23003.
Vulnerability Description
The vulnerability in the TMM process of BIG-IP can lead to core file generation upon the passage of undisclosed MPTCP traffic.
Affected Systems and Versions
The affected systems include BIG-IP versions 16.0.x, 15.1.x, 14.1.x, 13.1.x, 12.1.x, and 11.6.x before the specified patched versions.
Exploitation Mechanism
The vulnerability can be exploited by sending undisclosed MPTCP traffic through a standard virtual server, triggering the core file creation in the TMM process.
Mitigation and Prevention
Learn about the steps to mitigate and prevent the exploitation of CVE-2021-23003.
Immediate Steps to Take
It is crucial to apply the latest patches provided by F5 Networks to address this vulnerability promptly.
Long-Term Security Practices
Incorporate regular security updates and monitoring practices to safeguard against potential vulnerabilities like CVE-2021-23003.
Patching and Updates
Stay informed about F5 updates and ensure timely application of patches to enhance system security.