CVE-2023-22841 Explained : Impact and Mitigation

This is a detailed overview of CVE-2023-22841, including its impact, technical details, and mitigation strategies.

Understanding CVE-2023-22841

CVE-2023-22841 pertains to an escalation of privilege vulnerability known as an Unquoted search path. The vulnerability specifically affects the System Firmware Update Utility (SysFwUpdt) for certain Intel(R) Server Boards and Intel(R) Server Systems based on the Intel(R) 621A Chipset.

What is CVE-2023-22841?

The CVE-2023-22841 vulnerability involves an unquoted search path in the software installer for the System Firmware Update Utility (SysFwUpdt) before version 16.0.7. This flaw may be exploited by an authenticated user with local access to potentially facilitate escalation of privilege.

The Impact of CVE-2023-22841

The impact of CVE-2023-22841 is classified as MEDIUM severity. The base score is 6.7 according to the CVSS 3.1 scoring system. This vulnerability could be leveraged by an attacker with low privileges and high attack complexity to compromise the confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2023-22841

The following technical aspects outline the vulnerability in more detail.

Vulnerability Description

The vulnerability arises due to an unquoted search path in the software installer of SysFwUpdt, potentially enabling an authenticated user to carry out an escalation of privilege attack via local access.

Affected Systems and Versions

The vulnerability affects the System Firmware Update Utility (SysFwUpdt) for certain Intel(R) Server Boards and Intel(R) Server Systems based on the Intel(R) 621A Chipset before version 16.0.7. Systems running versions prior to 16.0.7 are vulnerable to exploitation.

Exploitation Mechanism

An attacker must have local access and be authenticated to exploit this vulnerability. By manipulating the unquoted search path within the software installer, an attacker could elevate their privileges on the system.

Mitigation and Prevention

To safeguard systems from CVE-2023-22841 and prevent potential exploitation, the following steps can be taken:

Immediate Steps to Take

Update the System Firmware Update Utility (SysFwUpdt) to version 16.0.7 or later to eliminate the vulnerability.
Monitor access to the affected systems and restrict privileges to authorized personnel only.

Long-Term Security Practices

Implement regular security audits and vulnerability assessments to identify and address any potential weaknesses.
Educate users on safe installation practices and the importance of keeping software up to date.

Patching and Updates

Stay informed about security advisories and updates from Intel to ensure timely patching of vulnerabilities and protection of systems. Regularly check for updates to the System Firmware Update Utility to mitigate security risks.