CVE-2023-28722 : Vulnerability Insights and Analysis

This CVE record pertains to an improper buffer restrictions vulnerability found in some Intel NUC BIOS firmware versions before IN0048, potentially enabling a privileged user to escalate their privileges via local access. The vulnerability was published on January 19, 2024, and has a base score of 6.7, categorizing it as a medium severity issue.

Understanding CVE-2023-28722

This section delves into the details surrounding the CVE-2023-28722 vulnerability, including its impact, technical description, affected systems, exploitation mechanism, and mitigation strategies.

What is CVE-2023-28722?

The CVE-2023-28722 vulnerability involves improper buffer restrictions present in certain Intel NUC BIOS firmware versions, specifically those released before version IN0048. This flaw could be exploited by a privileged user to potentially escalate their privileges through local access to the affected system.

The Impact of CVE-2023-28722

The impact of this vulnerability lies in the ability for a malicious actor with user privileges to elevate their access level. This could lead to unauthorized actions being taken on the system, posing a risk to the confidentiality, integrity, and availability of the device.

Technical Details of CVE-2023-28722

This section provides a deeper dive into the technical aspects of CVE-2023-28722, outlining the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in question stems from improper buffer restrictions within the Intel NUC BIOS firmware versions preceding IN0048. This oversight could be leveraged by a privileged user to potentially escalate their privileges on the system.

Affected Systems and Versions

The impacted system is the Intel NUC BIOS firmware, specifically versions released before the update to version IN0048. Users with these vulnerable firmware versions are at risk of exploitation.

Exploitation Mechanism

To exploit this vulnerability, a privileged user would need local access to the system running the affected Intel NUC BIOS firmware versions. By leveraging the improper buffer restrictions, the user could potentially elevate their privileges and carry out unauthorized actions.

Mitigation and Prevention

In response to CVE-2023-28722, it is crucial to take immediate steps to secure systems, implement long-term security practices, and apply necessary patches and updates to mitigate the risk posed by this vulnerability.

Immediate Steps to Take

Immediate actions include monitoring systems for any suspicious activities, restricting access to privileged accounts, and applying the principle of least privilege to limit user capabilities.

Long-Term Security Practices

To bolster overall security posture, organizations should prioritize regular security assessments, employee training on cybersecurity best practices, and staying informed about potential vulnerabilities and patches.

Patching and Updates

Ensuring that all Intel NUC BIOS firmware is updated to version IN0048 or later is essential for mitigating the CVE-2023-28722 vulnerability. Timely patching and updates can help prevent unauthorized privilege escalation and enhance the overall security of the system.