CVE-2022-32486 Explained : Impact and Mitigation

This CVE article provides detailed information about an improper input validation vulnerability in Dell BIOS that could lead to arbitrary code execution.

Understanding CVE-2022-32486

In this section, we will explore what CVE-2022-32486 is, its impacts, technical details, and mitigation strategies.

What is CVE-2022-32486?

CVE-2022-32486 refers to an improper input validation vulnerability in Dell BIOS. A local authenticated malicious user can potentially exploit this vulnerability through an SMI to achieve arbitrary code execution in SMRAM.

The Impact of CVE-2022-32486

The vulnerability poses a high risk as it could allow an attacker to execute arbitrary code in SMRAM, compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2022-32486

Let's delve into the technical aspects of CVE-2022-32486, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

Dell BIOS contains an improper input validation vulnerability that could be exploited by a local authenticated attacker using an SMI to achieve arbitrary code execution in SMRAM.

Affected Systems and Versions

The vulnerability affects Dell CPG BIOS versions prior to 2.25.0. Systems running these versions are at risk of exploitation by malicious actors.

Exploitation Mechanism

A local authenticated attacker can leverage this vulnerability by using an SMI to gain arbitrary code execution within SMRAM, potentially compromising the system's security.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks associated with CVE-2022-32486 and prevent potential exploitation.

Immediate Steps to Take

Update Dell CPG BIOS to version 2.25.0 or above to patch the vulnerability.
Implement strong access controls to prevent unauthorized access to BIOS settings.

Long-Term Security Practices

Regularly monitor BIOS security advisories from Dell to stay informed about potential vulnerabilities.
Conduct security trainings to educate users about best practices for securing BIOS configurations.

Patching and Updates

Stay proactive in applying security patches and firmware updates provided by Dell to address known vulnerabilities and enhance system security.