CVE-2022-26124 : Exploit Details and Defense Strategies
Learn about CVE-2022-26124, an Intel NUC BIOS firmware vulnerability allowing privilege escalation. Get insights on impact, affected systems, mitigation, and prevention measures.
A detailed overview of CVE-2022-26124 highlighting the impact, technical details, and mitigation steps.
Understanding CVE-2022-26124
In this section, we'll delve into the specifics of the vulnerability and its implications.
What is CVE-2022-26124?
The CVE-2022-26124 vulnerability involves improper buffer restrictions in BIOS firmware for certain Intel(R) NUC Boards, Intel(R) NUC 8 Boards, Intel(R) NUC 8 Rugged Boards, and Intel(R) NUC 8 Rugged Kits. Systems before version CHAPLCEL.0059 may allow a privileged user to potentially escalate privilege via local access.
The Impact of CVE-2022-26124
The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.5. An attacker with local access could exploit this flaw to elevate their privileges, posing significant security risks to affected systems.
Technical Details of CVE-2022-26124
This section will outline the vulnerability description, affected systems, versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper buffer restrictions in the BIOS firmware for specific Intel(R) NUC hardware, potentially enabling a privileged user to escalate their privileges.
Affected Systems and Versions
The vulnerability affects Intel(R) NUC Boards, Intel(R) NUC 8 Boards, Intel(R) NUC 8 Rugged Boards, and Intel(R) NUC 8 Rugged Kits before version CHAPLCEL.0059.
Exploitation Mechanism
A privileged user with local access could exploit this vulnerability to enable escalation of privilege, undermining system security.
Mitigation and Prevention
This section covers immediate steps to take and long-term security practices to safeguard against CVE-2022-26124.
Immediate Steps to Take
Users are advised to apply security patches promptly and restrict physical access to vulnerable systems to mitigate the risk of privilege escalation.
Long-Term Security Practices
Implementing robust access controls, regular security updates, and monitoring privileged user activities can enhance overall system security.
Patching and Updates
Intel has released patches to address the vulnerability in affected systems. Users should ensure they are running BIOS firmware versions equal to or later than CHAPLCEL.0059 to eliminate the risk of privilege escalation.