CVE-2022-24416 Explained : Impact and Mitigation
Learn about CVE-2022-24416, a Dell BIOS vulnerability allowing local authenticated users to execute arbitrary code. Discover impact, mitigation steps, and prevention measures.
Dell BIOS contains an improper input validation vulnerability that allows a local authenticated malicious user to exploit it using an SMI to gain arbitrary code execution during SMM.
Understanding CVE-2022-24416
This CVE refers to a security vulnerability found in Dell BIOS affecting versions less than 1.16, posing a high-risk threat.
What is CVE-2022-24416?
The CVE-2022-24416 vulnerability in Dell BIOS is due to improper input validation, which could be exploited by a local authenticated malicious user to execute arbitrary code.
The Impact of CVE-2022-24416
The impact of this vulnerability is considered high, affecting confidentiality, integrity, and availability. With a CVSS base score of 8.2, immediate action is required to mitigate the risks.
Technical Details of CVE-2022-24416
This section delves into the technical aspects of the vulnerability, discussing its description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper input validation in Dell BIOS, allowing an attacker to execute arbitrary code during SMM.
Affected Systems and Versions
Affected systems include Dell devices with BIOS versions less than 1.16, highlighting the critical need for updating to the latest secure version.
Exploitation Mechanism
A local authenticated malicious user can exploit this vulnerability using an SMI, elevating privileges to execute arbitrary code within System Management Mode.
Mitigation and Prevention
To safeguard systems from CVE-2022-24416, immediate steps, long-term security practices, and patching updates are recommended.
Immediate Steps to Take
It is crucial to apply security updates provided by Dell to address this vulnerability promptly. Additionally, restrict access to privileged users to minimize exploitation risks.
Long-Term Security Practices
Implementing robust security measures, such as regular security training, network segmentation, and access controls, can enhance the overall security posture.
Patching and Updates
Regularly monitor for BIOS updates from Dell and apply them as soon as they are available to ensure protection against known vulnerabilities.