CVE-2022-31226 Explained : Impact and Mitigation
Discover how CVE-2022-31226 affects Dell BIOS versions, allowing local malicious users to execute arbitrary code. Learn the impact, technical details, and mitigation steps.
Dell BIOS versions have been found to contain a Stack-based Buffer Overflow vulnerability that could be exploited by a local authenticated malicious user to execute arbitrary code on the system.
Understanding CVE-2022-31226
This CVE-2022-31226 impacts Dell systems with specific BIOS versions, potentially allowing attackers to gain unauthorized access.
What is CVE-2022-31226?
The CVE-2022-31226 is a vulnerability in Dell BIOS versions that permits a local authenticated malicious user to execute arbitrary code on the affected system by exploiting a Stack-based Buffer Overflow flaw.
The Impact of CVE-2022-31226
The impact of CVE-2022-31226 is rated as high, with a CVSS base score of 7.1. Attackers with low privileges can carry out this exploit locally, resulting in high integrity impact.
Technical Details of CVE-2022-31226
This section outlines the specific technical details of the vulnerability.
Vulnerability Description
The vulnerability lies in Dell BIOS versions, allowing for a Stack-based Buffer Overflow attack that enables unauthorized code execution on the targeted system.
Affected Systems and Versions
The affected product is CPG BIOS by Dell, specifically versions less than 21Q4 platforms.
Exploitation Mechanism
A local authenticated malicious user can exploit this vulnerability by sending excess data to a function, triggering the Stack-based Buffer Overflow and gaining arbitrary code execution on the system.
Mitigation and Prevention
To mitigate the risks associated with CVE-2022-31226, certain steps need to be taken.
Immediate Steps to Take
Users are advised to apply any available patches or updates provided by Dell to address the vulnerability promptly.
Long-Term Security Practices
Implementing strong access controls, network segmentation, and monitoring for unauthorized system changes can enhance security posture in the long term.
Patching and Updates
Regularly check for security updates and patches from Dell to ensure the BIOS is up to date and protected against known vulnerabilities.