CVE-2021-23044 : Exploit Details and Defense Strategies
Discover how CVE-2021-23044 affects F5 BIG-IP versions, leading to Traffic Management Microkernel termination. Learn mitigation steps and ensure system security.
F5 BIG-IP devices are affected by a vulnerability in the Intel QuickAssist Technology (QAT) compression driver, leading to potential termination of the Traffic Management Microkernel (TMM) under certain conditions.
Understanding CVE-2021-23044
This CVE impacts various versions of BIG-IP software, potentially exposing systems to termination due to undisclosed traffic when utilizing the QAT compression driver.
What is CVE-2021-23044?
CVE-2021-23044 affects BIG-IP versions 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x and 11.6.x. The vulnerability arises when the Intel QuickAssist Technology compression driver is active, potentially causing the TMM to terminate.
The Impact of CVE-2021-23044
The vulnerability poses a risk of service interruptions and system instability on affected BIG-IP hardware and Virtual Edition platforms. Attackers exploiting this flaw could disrupt traffic management functionalities.
Technical Details of CVE-2021-23044
This section explores the specifics of the vulnerability, affected systems, and how the exploit can be leveraged.
Vulnerability Description
CVE-2021-23044 pertains to the instability introduced by undisclosed traffic on systems utilizing the Intel QAT compression driver, resulting in TMM termination.
Affected Systems and Versions
BIG-IP software versions 16.x to 11.6.x are impacted, with certain releases susceptible to service termination when the QAT compression driver is active.
Exploitation Mechanism
By sending specific traffic to systems with the vulnerable configurations mentioned, threat actors can trigger TMM termination, causing potential disruptions to service.
Mitigation and Prevention
Learn how to address and safeguard your systems against CVE-2021-23044 to ensure operational continuity and security.
Immediate Steps to Take
Implement immediate measures to mitigate the risk, such as updating impacted systems and configurations to prevent exploitation.
Long-Term Security Practices
Establish robust security protocols, conduct regular assessments, and stay informed about patches and updates to fend off potential threats.
Patching and Updates
Stay vigilant for official patches and updates from F5 regarding CVE-2021-23044 to eliminate the vulnerability and enhance system resilience.