CVE-2022-28699 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2022-28699, which involves an improper input validation issue in the Intel(R) NUC BIOS firmware that may lead to an escalation of privilege.

Understanding CVE-2022-28699

CVE-2022-28699 highlights a vulnerability in the Intel(R) NUC BIOS firmware that could be exploited by a privileged user to potentially escalate their privileges through local access.

What is CVE-2022-28699?

The CVE-2022-28699 vulnerability stems from improper input validation in certain versions of the Intel(R) NUC BIOS firmware, allowing a privileged user to elevate their access rights locally.

The Impact of CVE-2022-28699

The impact of CVE-2022-28699 is rated as HIGH, with a CVSS base score of 7.5. This vulnerability could result in confidentiality, integrity, and availability impacts when exploited.

Technical Details of CVE-2022-28699

This section delves into the technical aspects of the CVE-2022-28699 vulnerability.

Vulnerability Description

The vulnerability in the Intel(R) NUC BIOS firmware arises from improper input validation, enabling a privileged user to potentially perform an escalation of privilege attack through local access.

Affected Systems and Versions

The affected system includes Intel(R) NUC BIOS firmware. The specific affected versions can be found in the references provided.

Exploitation Mechanism

To exploit CVE-2022-28699, a privileged user with local access can leverage the improper input validation issue in the Intel(R) NUC BIOS firmware to escalate their privileges.

Mitigation and Prevention

This section outlines steps to mitigate and prevent the exploitation of CVE-2022-28699.

Immediate Steps to Take

Immediate actions include checking for security advisories from Intel and applying recommended patches or mitigations. Users should also restrict access to privileged accounts.

Long-Term Security Practices

Implementing strong access controls, regular security audits, and staying informed about firmware updates and security best practices are essential for long-term security.

Patching and Updates

Regularly updating the Intel(R) NUC BIOS firmware to the latest patched version is crucial in addressing the CVE-2022-28699 vulnerability and enhancing overall system security.