CVE-2023-22379 : Exploit Details and Defense Strategies

This CVE record was published by Intel on May 10, 2023, highlighting a security vulnerability identified as CVE-2023-22379. The vulnerability, categorized under "Improper input validation" and "Information disclosure," affects Intel(R) Server Board BMC firmware versions before 2.90. It may allow a privileged user to enable information disclosure through local access.

Understanding CVE-2023-22379

This section delves into the specifics of CVE-2023-22379, providing insights into the nature of the vulnerability and its potential impact.

What is CVE-2023-22379?

CVE-2023-22379 is characterized by improper input validation within certain Intel(R) Server Board BMC firmware versions before 2.90. This flaw could be exploited by a privileged user locally to disclose sensitive information.

The Impact of CVE-2023-22379

The impact of CVE-2023-22379 is categorized as "MEDIUM," with a CVSS base score of 6.7. The vulnerability could result in high confidentiality impact, although the integrity impact is deemed low, and the availability impact is non-existent. The attack vector is local, with low attack complexity and high privileges required for exploitation.

Technical Details of CVE-2023-22379

In this section, we explore the technical aspects of CVE-2023-22379, including its vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Intel(R) Server Board BMC firmware before version 2.90 stems from improper input validation, which can be manipulated by a privileged user to disclose sensitive information.

Affected Systems and Versions

The impacted product is the Intel(R) Server Board BMC firmware before version 2.90. This specific version is susceptible to the improper input validation vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by a privileged user with local access to the affected Intel(R) Server Board BMC firmware. By leveraging this flaw, the attacker may enable information disclosure.

Mitigation and Prevention

This section outlines the recommended steps to address and mitigate the risks associated with CVE-2023-22379.

Immediate Steps to Take

It is advised to update the Intel(R) Server Board BMC firmware to version 2.90 or higher to mitigate the vulnerability. Additionally, limiting privileged access to the firmware can reduce the risk of exploitation.

Long-Term Security Practices

Implementing robust input validation mechanisms and regularly monitoring and updating firmware can enhance overall security posture and help prevent similar vulnerabilities in the future.

Patching and Updates

Staying informed about security advisories from Intel and promptly applying patches and updates to the firmware can strengthen the resilience of the system against potential cyber threats.