CVE-2023-28035 : What You Need to Know

This CVE-2023-28035 vulnerability affects Dell BIOS, posing a risk of exploitation by a local authenticated malicious user with administrator privileges to modify a UEFI variable.

Understanding CVE-2023-28035

This section provides insight into the nature of the CVE-2023-28035 vulnerability.

What is CVE-2023-28035?

The CVE-2023-28035 vulnerability is characterized by an improper input validation issue within Dell BIOS. This flaw could enable a local authenticated attacker with administrator rights to potentially exploit the vulnerability to manipulate a UEFI variable.

The Impact of CVE-2023-28035

The impact of this vulnerability lies in the potential for unauthorized manipulation of UEFI variables by a malicious user, which could lead to system compromise or unauthorized system changes.

Technical Details of CVE-2023-28035

Delve deeper into the technical aspects of CVE-2023-28035.

Vulnerability Description

The vulnerability stems from improper input validation in Dell BIOS, allowing a local authenticated attacker to exploit it to modify a UEFI variable.

Affected Systems and Versions

The vulnerability impacts all versions of CPG BIOS by Dell.

Exploitation Mechanism

A local authenticated malicious user with administrator privileges can exploit this vulnerability, posing a risk to system integrity by modifying UEFI variables.

Mitigation and Prevention

Explore the measures to mitigate the risks associated with CVE-2023-28035.

Immediate Steps to Take

Monitor official Dell security advisories for updates related to this vulnerability.
Implement access controls to limit the privileges of users who can access and modify UEFI variables.
Consider restricting physical access to systems running Dell BIOS.

Long-Term Security Practices

Regularly update BIOS firmware to the latest version provided by Dell to address known vulnerabilities.
Conduct security training for administrators and users regarding best practices for system security.

Patching and Updates

Dell has released a security update to address the improper input validation vulnerability in Dell BIOS. Users are advised to apply this patch promptly to mitigate the risk of exploitation.