CVE-2021-23906 Explained : Impact and Mitigation
Learn about CVE-2021-23906, a vulnerability in Headunit NTG6 in Mercedes-Benz cars. Understand the impact, technical details, and mitigation steps for this security issue.
An issue was discovered in the Headunit NTG6 in the MBUX Infotainment System on Mercedes-Benz vehicles through 2021. This vulnerability arises from unchecked Message Length in the HiQnet Protocol, potentially allowing for remote code execution.
Understanding CVE-2021-23906
This section provides an overview of the critical details regarding CVE-2021-23906.
What is CVE-2021-23906?
CVE-2021-23906 is a vulnerability found in the Headunit NTG6 system in Mercedes-Benz vehicles up to 2021. It results from the lack of proper message length validation in the HiQnet Protocol, enabling attackers to exploit this weakness.
The Impact of CVE-2021-23906
The vulnerability presents a low severity risk with a CVSS base score of 1.8. While it requires physical access to exploit, successful attacks could lead to unauthorized code execution on the affected system.
Technical Details of CVE-2021-23906
Explore the technical aspects of CVE-2021-23906 to gain a comprehensive understanding of the issue.
Vulnerability Description
The vulnerability stems from the failure to validate message lengths in the HiQnet Protocol, creating a pathway for remote code execution attacks on the MBUX Infotainment System.
Affected Systems and Versions
All Mercedes-Benz vehicles utilizing the Headunit NTG6 system until 2021 are susceptible to this vulnerability due to the inadequacies in message length verification within the HiQnet Protocol.
Exploitation Mechanism
Exploiting this vulnerability requires physical access to the Headunit NTG6 system, enabling threat actors to execute arbitrary code remotely.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks posed by CVE-2021-23906 and prevent potential security breaches.
Immediate Steps to Take
It is crucial to apply security updates provided by Mercedes-Benz to address this vulnerability promptly. Additionally, restricting physical access to the Infotainment System can mitigate the risk of exploitation.
Long-Term Security Practices
Implementing stringent security protocols, conducting regular security audits, and staying informed about potential vulnerabilities are essential for long-term protection against similar threats.
Patching and Updates
Regularly check for security advisories and patches released by Mercedes-Benz to ensure the timely application of updates and fixes.