CVE-2022-28636 Explained : Impact and Mitigation

A potential local arbitrary code execution and a local denial of service (DoS) vulnerability has been identified in HPE Integrated Lights-Out 5 (iLO 5) firmware versions prior to 2.71. This could allow an unprivileged user to exploit the vulnerability, resulting in a severe impact on confidentiality, integrity, and availability. HPE has released a firmware update to address this issue.

Understanding CVE-2022-28636

This section will provide insights into the nature and impact of the CVE-2022-28636 vulnerability.

What is CVE-2022-28636?

The CVE-2022-28636 vulnerability involves a local arbitrary code execution and denial of service (DoS) risk within an isolated process in HPE Integrated Lights-Out 5 (iLO 5) firmware versions earlier than 2.71.

The Impact of CVE-2022-28636

The vulnerability can be locally exploited by an unprivileged user to execute arbitrary code within an isolated process, resulting in a significant loss of confidentiality, integrity, and availability. Additionally, it exposes a DoS vulnerability that could lead to a complete loss of availability within the affected process.

Technical Details of CVE-2022-28636

This section will delve into the specifics of the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability allows unprivileged users to execute arbitrary code and trigger a denial of service attack within an isolated process in HPE Integrated Lights-Out 5 (iLO 5) firmware versions prior to 2.71.

Affected Systems and Versions

HPE Integrated Lights-Out 5 (iLO 5) firmware versions earlier than 2.71 are susceptible to this vulnerability.

Exploitation Mechanism

Attackers with local access can exploit the vulnerability to execute arbitrary code and launch DoS attacks within isolated processes.

Mitigation and Prevention

In this section, we will outline the steps to mitigate the risks posed by CVE-2022-28636 and prevent future occurrences.

Immediate Steps to Take

Users are advised to apply the firmware update provided by HPE to address the vulnerability promptly. It is crucial to keep systems up to date and secure.

Long-Term Security Practices

Implementing strong access controls, regular security audits, and staying informed about potential security threats can enhance the overall security posture of the system.

Patching and Updates

Regularly monitor for security updates from HPE and promptly apply patches to safeguard against known vulnerabilities.