CVE-2022-24418 : Security Advisory and Response
Learn about CVE-2022-24418, a critical local privilege escalation vulnerability in Dell BIOS allowing arbitrary code execution. Understand the impact, affected systems, and mitigation steps.
Dell BIOS contains a severe vulnerability due to improper input validation. This local privilege escalation vulnerability could allow a malicious authenticated user to execute arbitrary code.
Understanding CVE-2022-24418
This CVE highlights a critical security issue in Dell BIOS that could lead to unauthorized code execution by leveraging an SMI in System Management Mode (SMM).
What is CVE-2022-24418?
The CVE-2022-24418 is a local privilege escalation vulnerability found in Dell BIOS, potentially exploited by a local authenticated attacker to execute arbitrary code during System Management Mode (SMM) using an SMI.
The Impact of CVE-2022-24418
With a CVSS base score of 7.5 (High), the impact of this vulnerability is severe. An attacker with local access could escalate privileges and gain control over the affected system, posing a significant risk to confidentiality, integrity, and availability.
Technical Details of CVE-2022-24418
This section dives deeper into the technical aspects of the vulnerability to provide a clear understanding of its implications.
Vulnerability Description
The vulnerability arises due to improper input validation in Dell BIOS, enabling a local authenticated attacker to exploit an SMI and achieve arbitrary code execution during SMM.
Affected Systems and Versions
The vulnerability affects Dell systems running CPG BIOS versions earlier than 1.10.0, exposing them to potential exploitation.
Exploitation Mechanism
To exploit this vulnerability, a local authenticated user needs to leverage an SMI, allowing them to execute arbitrary code during System Management Mode on the affected Dell system.
Mitigation and Prevention
Understanding how to mitigate and prevent the CVE-2022-24418 vulnerability is crucial for ensuring the security of Dell systems.
Immediate Steps to Take
For immediate protection, users are advised to update their Dell systems to the latest BIOS version (1.10.0 or higher) provided by Dell to address this vulnerability.
Long-Term Security Practices
Implementing robust security practices like regular system updates, restricting user permissions, and monitoring for unauthorized access can enhance the overall security posture.
Patching and Updates
Regularly check for security updates from Dell and promptly apply patches to eliminate known vulnerabilities and safeguard systems from potential threats.