CVE-2023-25545 : What You Need to Know

This CVE-2023-25545 involves improper buffer restrictions in some Intel(R) Server Board BMC firmware before version 2.90, which may allow a privileged user to enable escalation of privilege via local access.

Understanding CVE-2023-25545

This section will delve deeper into the details regarding the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-25545?

CVE-2023-25545 pertains to a vulnerability in the Intel(R) Server Board BMC firmware before version 2.90, where improper buffer restrictions could potentially allow a privileged user to escalate their privileges via local access.

The Impact of CVE-2023-25545

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 8.2. It can lead to an escalation of privilege for a privileged user, compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2023-25545

In this section, we will explore the technical aspects of the CVE, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability involves improper buffer restrictions in the Intel(R) Server Board BMC firmware before version 2.90, enabling a privileged user to escalate their privileges through local access.

Affected Systems and Versions

The affected product is the Intel(R) Server Board BMC firmware, specifically versions before 2.90. Systems running on these versions are vulnerable to the privilege escalation issue.

Exploitation Mechanism

The exploitation of this vulnerability requires a privileged user to have local access to the affected system. By leveraging the improper buffer restrictions, the user can escalate their privileges within the system.

Mitigation and Prevention

In this section, we will discuss the steps to mitigate and prevent the exploitation of CVE-2023-25545, ensuring the security of the system.

Immediate Steps to Take

Update the Intel(R) Server Board BMC firmware to version 2.90 or higher to patch the vulnerability.
Restrict access to privileged users and closely monitor their activities to prevent unauthorized privilege escalation attempts.

Long-Term Security Practices

Regularly monitor vendor security advisories for firmware updates and apply patches promptly.
Implement strict access control policies and regularly review and update user privileges to minimize the risk of privilege escalation.

Patching and Updates

Stay informed about security updates and patches provided by Intel for the Server Board BMC firmware. Timely patching is crucial to protect against known vulnerabilities and maintain the security of the system.