CVE-2021-0093 : Security Advisory and Response

A privilege escalation vulnerability, CVE-2021-0093 affects Intel(R) Processors due to incorrect default permissions in the firmware, potentially enabling a denial of service attack via local access.

Understanding CVE-2021-0093

This section provides insights into the impact, technical details, and mitigation strategies for CVE-2021-0093.

What is CVE-2021-0093?

The vulnerability CVE-2021-0093 arises from incorrect default permissions in the firmware of certain Intel(R) Processors, allowing a privileged user to potentially execute a denial of service attack through local access.

The Impact of CVE-2021-0093

The impact of this vulnerability is the potential for a privilege escalation, wherein an attacker could exploit the firmware's permissions issue to orchestrate a denial of service attack.

Technical Details of CVE-2021-0093

Explore the technical specifics of the vulnerability including the description, affected systems, and exploitation mechanism.

Vulnerability Description

The issue stems from incorrect default permissions in the firmware of the specified Intel(R) Processors, providing a pathway for privileged users to launch denial of service attacks via local entry.

Affected Systems and Versions

The vulnerability affects Intel(R) Processors with the specified firmware versions, creating a security loophole that unauthorized users can exploit for malicious purposes.

Exploitation Mechanism

By leveraging the incorrect default permissions in the processor firmware, attackers with local access can trigger actions that lead to denial of service scenarios.

Mitigation and Prevention

Discover the immediate steps to secure systems, implement long-term security measures, and apply necessary patches and updates to safeguard against CVE-2021-0093.

Immediate Steps to Take

Users are advised to restrict privileged access, monitor system logs for suspicious activities, and apply relevant security patches to mitigate the threat of potential denial of service attacks.

Long-Term Security Practices

Implement comprehensive security protocols, conduct regular security audits, educate users on safe computing practices, and keep systems updated with the latest security patches to fortify defenses against similar vulnerabilities.

Patching and Updates

Intel(R) has released security updates addressing the firmware permissions issue in the affected processors. Ensure immediate installation of these patches to eliminate the risk of exploitation.