CVE-2023-28044 : Exploit Details and Defense Strategies

This CVE record was published on June 23, 2023, by Dell, highlighting an improper input validation vulnerability present in Dell BIOS.

Understanding CVE-2023-28044

This vulnerability in Dell BIOS can be exploited by a local authenticated malicious user with administrator privileges to potentially modify a UEFI variable.

What is CVE-2023-28044?

CVE-2023-28044 is an improper input validation vulnerability found in Dell BIOS. This vulnerability could be abused by a local authenticated malicious user to tamper with a UEFI variable.

The Impact of CVE-2023-28044

The impact of CVE-2023-28044 is rated as medium severity with a CVSS base score of 5.1. While the attack complexity is low and requires high privileges, the integrity impact is high, affecting the potential unauthorized modification of UEFI variables.

Technical Details of CVE-2023-28044

This section delves into the technical aspects of the CVE, including the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Dell BIOS stems from improper input validation, which may allow an authenticated local user to manipulate UEFI variables.

Affected Systems and Versions

The affected product identified in this CVE is CPG BIOS from Dell, with all versions being susceptible to this vulnerability.

Exploitation Mechanism

The exploitation of CVE-2023-28044 requires a local authenticated user with administrator privileges to carry out unauthorized modifications to UEFI variables.

Mitigation and Prevention

It is crucial to take immediate steps to address CVE-2023-28044 and implement long-term security practices to safeguard systems against such vulnerabilities.

Immediate Steps to Take

Immediately apply the security update provided by Dell to mitigate the risk posed by the improper input validation vulnerability in BIOS.

Long-Term Security Practices

Implement robust security measures, such as least privilege access, regular security patching, and monitoring, to enhance overall system security and mitigate potential risks.

Patching and Updates

Stay informed about security updates and patches released by Dell to address vulnerabilities like CVE-2023-28044. Regularly apply these patches to ensure the security of your systems and data.