CVE-2023-28743 : Security Advisory and Response

This CVE record was assigned by Intel and published on January 19, 2024. It revolves around an improper input validation issue in some Intel NUC BIOS firmware versions before QN0073, which could potentially lead to an escalation of privilege for a privileged user with local access.

Understanding CVE-2023-28743

This section aims to provide detailed insights into the nature of CVE-2023-28743, including its impact and technical aspects.

What is CVE-2023-28743?

CVE-2023-28743 is categorized as an "escalation of privilege" vulnerability stemming from improper input validation in certain Intel NUC BIOS firmware versions. This security flaw could empower a privileged user to elevate their access privileges via local means.

The Impact of CVE-2023-28743

The impact of CVE-2023-28743 is rated as high, with a CVSS base score of 7.5. The vulnerability could be exploited by a malicious actor with local access to potentially manipulate privileges, leading to severe consequences such as unauthorized system access or data tampering.

Technical Details of CVE-2023-28743

Delve deeper into the technical aspects of CVE-2023-28743, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in Intel NUC BIOS firmware before version QN0073 arises due to inadequate input validation, providing an opening for a privileged user to escalate their access privileges locally.

Affected Systems and Versions

The impacted system is the Intel NUC BIOS firmware version prior to QN0073. Users with these versions are susceptible to the privilege escalation vulnerability posed by CVE-2023-28743.

Exploitation Mechanism

Exploiting CVE-2023-28743 requires a local user with elevated privileges to manipulate the insufficiently validated input, paving the way for an escalation of their access rights within the system.

Mitigation and Prevention

Learn about the steps you can take to mitigate the risks associated with CVE-2023-28743 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to update their Intel NUC BIOS firmware to at least version QN0073 to mitigate the vulnerability. Additionally, limit the access of privileged users to minimize the risk of exploitation.

Long-Term Security Practices

Implementing strong access control policies, regular security assessments, and timely firmware updates can bolster the overall security posture of the system and mitigate similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories from Intel and promptly apply patches and updates to ensure that your system is protected against known vulnerabilities like CVE-2023-28743.