CVE-2021-0054 : Exploit Details and Defense Strategies
Learn about CVE-2021-0054, a privilege escalation vulnerability in Intel(R) NUCs system firmware. Understand the impact, affected systems, and mitigation steps.
A privilege escalation vulnerability has been identified in some Intel(R) NUCs due to improper buffer restrictions in the system firmware. This could potentially allow a privileged user to escalate their privileges through local access.
Understanding CVE-2021-0054
This section delves into the impact, technical details, and mitigation strategies related to CVE-2021-0054.
What is CVE-2021-0054?
The CVE-2021-0054 vulnerability pertains to improper buffer restrictions within the system firmware of certain Intel(R) NUCs. This flaw could be exploited by a privileged user to elevate their privileges locally.
The Impact of CVE-2021-0054
The vulnerability poses a significant threat as it allows a privileged user to potentially escalate their privileges through local access, thereby compromising system security.
Technical Details of CVE-2021-0054
This section outlines the vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper buffer restrictions within the system firmware of specific Intel(R) NUC devices, creating an opening for privilege escalation.
Affected Systems and Versions
The affected product is Intel(R) NUCs with the versions marked as 'See references'. Users are advised to refer to vendor documentation for precise version details.
Exploitation Mechanism
A privileged user could exploit this vulnerability through local system access, leveraging the improper buffer restrictions in the system firmware to escalate their privileges.
Mitigation and Prevention
This section covers immediate steps to take and long-term security practices to mitigate the risks associated with CVE-2021-0054.
Immediate Steps to Take
Users are recommended to install security patches provided by Intel promptly to address the vulnerability. Restricting privileged access and monitoring system activity are also advisable.
Long-Term Security Practices
Implementing regular security updates, conducting security assessments, and maintaining least privilege access can enhance the overall security posture and prevent similar vulnerabilities.
Patching and Updates
Continuous monitoring of vendor channels for security advisories and promptly applying patches to the affected systems is crucial in preventing exploitation of this vulnerability.