CVE-2022-21198 : Security Advisory and Response
CVE-2022-21198 involves a privilege escalation flaw in Intel(R) Processors BIOS firmware, allowing unauthorized users to elevate privileges via local access. Learn about the impact and mitigation.
A detailed overview of CVE-2022-21198 regarding an escalation of privilege vulnerability in Intel(R) Processors BIOS firmware.
Understanding CVE-2022-21198
CVE-2022-21198 is a vulnerability that can potentially enable escalation of privilege for privileged users due to a time-of-check time-of-use race condition in the BIOS firmware of certain Intel(R) Processors.
What is CVE-2022-21198?
The CVE-2022-21198 vulnerability involves a time-of-check time-of-use race condition in the BIOS firmware for specific Intel(R) Processors, allowing a privileged user to potentially escalate their privileges through local access.
The Impact of CVE-2022-21198
The impact of CVE-2022-21198 is rated as HIGH with a CVSS base score of 7.9. This vulnerability can lead to unauthorized escalation of privileges, posing a significant security risk to affected systems.
Technical Details of CVE-2022-21198
This section provides technical details about the vulnerability, including the description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability in the Intel(R) Processors BIOS firmware can be exploited by a privileged user with local access to potentially elevate their privileges, leading to an escalation of privilege scenario.
Affected Systems and Versions
The vulnerability affects Intel(R) Processors. For specific version information, refer to the provided references.
Exploitation Mechanism
The exploitation of CVE-2022-21198 involves taking advantage of the time-of-check time-of-use race condition in the BIOS firmware of Intel(R) Processors to gain escalated privileges.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2022-21198 and prevent potential security breaches.
Immediate Steps to Take
Immediate steps include reviewing and applying security updates, restricting privileged user access, and monitoring system activity for any suspicious behavior.
Long-Term Security Practices
Implementing robust access controls, conducting regular security assessments, and staying informed about security advisories are essential for long-term security.
Patching and Updates
Ensure timely installation of patches and firmware updates provided by Intel to address the CVE-2022-21198 vulnerability.