CVE-2023-25756 Explained : Impact and Mitigation
Learn about CVE-2023-25756, an out-of-bounds read vulnerability in Intel(R) Processors' BIOS firmware that could lead to privilege escalation. Understand impact, technical details, and mitigation steps.
This CVE record pertains to an out-of-bounds read vulnerability found in the BIOS firmware of certain Intel(R) Processors. The vulnerability may allow an authenticated user to potentially escalate privilege through adjacent access.
Understanding CVE-2023-25756
This section will provide insights into what CVE-2023-25756 entails, its impact, technical details, and how to mitigate and prevent exploitation.
What is CVE-2023-25756?
CVE-2023-25756 is an out-of-bounds read vulnerability discovered in the BIOS firmware of specific Intel(R) Processors. This flaw could be exploited by an authenticated user to potentially escalate privilege through nearby access.
The Impact of CVE-2023-25756
The impact of this vulnerability includes the risk of unauthorized privilege escalation, which could lead to an attacker gaining elevated access rights within the system. The severity is classified as MEDIUM with a CVSS base score of 4.6.
Technical Details of CVE-2023-25756
In this section, we will delve into the vulnerability description, affected systems and versions, as well as the exploitation mechanism of CVE-2023-25756.
Vulnerability Description
The vulnerability involves an out-of-bounds read in the BIOS firmware of certain Intel(R) Processors, which could potentially be leveraged by an authenticated user to enable privilege escalation via adjacent access.
Affected Systems and Versions
The affected system in this case is Intel(R) Processors with BIOS firmware. The specific affected versions are not provided, and users are advised to refer to the references for more information.
Exploitation Mechanism
To exploit this vulnerability, an authenticated user needs to have adjacent access to the target system. By leveraging the out-of-bounds read in the BIOS firmware, the attacker could escalate their privileges within the system.
Mitigation and Prevention
This section outlines the immediate steps to take, long-term security practices, and the significance of patching and updates in mitigating the risks associated with CVE-2023-25756.
Immediate Steps to Take
Users are recommended to review the security advisory provided by Intel and implement any available patches or mitigations to address the vulnerability promptly. Additionally, restricting access to critical system components can help reduce the risk of exploitation.
Long-Term Security Practices
Implementing strong access control measures, regularly monitoring for unusual activities, and keeping systems up to date with the latest security patches are crucial long-term security practices to enhance overall system security posture.
Patching and Updates
Staying informed about security advisories from Intel and other relevant sources, and promptly applying patches and updates to the BIOS firmware of affected Intel(R) Processors is essential to mitigate the risk of privilege escalation associated with CVE-2023-25756.