CVE-2022-41741 Explained : Impact and Mitigation
Learn about CVE-2022-41741, a vulnerability in NGINX's ngx_http_mp4_module that could allow a local attacker to corrupt memory. Find impacted systems, exploitation, and mitigation steps.
A detailed overview of CVE-2022-41741, a vulnerability in NGINX's ngx_http_mp4_module that could be exploited to corrupt worker memory.
Understanding CVE-2022-41741
This section delves into the specifics of the NGINX vulnerability.
What is CVE-2022-41741?
NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to corrupt NGINX worker memory. The issue affects only NGINX products that are built with the ngx_http_mp4_module when the mp4 directive is used in the configuration file.
The Impact of CVE-2022-41741
The vulnerability could enable a local attacker to corrupt NGINX worker memory, potentially leading to termination or other impacts by using a specially crafted audio or video file. The attack is feasible only when the attacker triggers the processing of a specially crafted audio or video file with the ngx_http_mp4_module.
Technical Details of CVE-2022-41741
Explore the vulnerability's technical aspects in this section.
Vulnerability Description
The issue in NGINX's module ngx_http_mp4_module could result in a local attacker corrupting worker memory, affecting the stability and reliability of NGINX.
Affected Systems and Versions
F5's NGINX Mainline and Stable versions, NGINX Plus R27 and R1 versions, and NGINX Open Source Subscription R2 and R1 versions are impacted by this vulnerability.
Exploitation Mechanism
Attackers could exploit this vulnerability by utilizing specially crafted audio or video files to trigger worker memory corruption.
Mitigation and Prevention
Discover the steps to mitigate and prevent exploitation of CVE-2022-41741.
Immediate Steps to Take
Immediately update NGINX installations to versions 1.23.2, 1.22.1, R27 P1, R26 P1, R2 P1, or R1 P1 to mitigate the vulnerability.
Long-Term Security Practices
Regularly monitor and apply security updates to NGINX products to prevent potential memory corruption attacks.
Patching and Updates
Stay informed about security advisories from NGINX and promptly apply patches and updates to secure the systems.