CVE-2022-34147 : Vulnerability Insights and Analysis
Learn about CVE-2022-34147, a high-severity Intel NUC BIOS firmware vulnerability allowing privilege escalation. Find details, impact, affected systems, and mitigation steps.
A privilege escalation vulnerability through improper input validation in BIOS firmware of certain Intel NUC products.
Understanding CVE-2022-34147
This CVE identifies a security flaw in the BIOS firmware of various Intel NUC product lines, potentially leading to privilege escalation.
What is CVE-2022-34147?
The vulnerability involves improper input validation in the BIOS firmware of Intel NUC devices, allowing a local privileged user to exploit this weakness and escalate their privileges.
The Impact of CVE-2022-34147
This vulnerability has a CVSS base score of 7.5, indicating a high severity level. An attacker with local access could exploit this flaw to elevate their privileges, posing a significant security risk.
Technical Details of CVE-2022-34147
This section provides an overview of the vulnerability's description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability arises from insufficient input validation in the BIOS firmware of Intel(R) NUC 9 Extreme Laptop Kits, Intel(R) NUC Performance Kits, and other related product lines. An attacker with local access can potentially exploit this flaw to escalate their privileges.
Affected Systems and Versions
The affected products include Intel(R) NUC 9 Extreme Laptop Kits, Intel(R) NUC Performance Kits, Intel(R) NUC Performance Mini PC, and several other Intel NUC variants. The specific BIOS versions impacted are detailed in the provided references.
Exploitation Mechanism
By leveraging the improper input validation in the BIOS firmware, a privileged local user can manipulate the system to enable escalation of privilege, allowing them to perform unauthorized actions.
Mitigation and Prevention
Outlined below are steps to address and prevent the exploitation of this vulnerability in Intel NUC devices.
Immediate Steps to Take
Users are advised to refer to the official Intel security advisory (SA-00777) for specific guidance on mitigating the privilege escalation risk. Implementing the recommended security measures promptly is crucial.
Long-Term Security Practices
Incorporating robust security practices, such as regular security updates, system hardening, and user privilege management, can help enhance the overall security posture and mitigate potential risks.
Patching and Updates
Intel is likely to release BIOS updates or patches to address the identified vulnerability. Users should regularly check for updates from Intel's official support channels and apply them as soon as they become available.