CVE-2023-40220 : What You Need to Know
Learn about CVE-2023-40220 where improper buffer restrictions in Intel(R) NUC BIOS firmware may allow privileged user information disclosure. Find impact, technical details, and mitigation strategies.
A detailed overview of CVE-2023-40220 focusing on the impact, technical details, and mitigation strategies.
Understanding CVE-2023-40220
An analysis of the vulnerability, affected systems, and exploitation methods.
What is CVE-2023-40220?
The CVE-2023-40220 vulnerability involves improper buffer restrictions in some Intel(R) NUC BIOS firmware, potentially leading to information disclosure by enabling local access for a privileged user.
The Impact of CVE-2023-40220
The vulnerability's impact includes a medium severity CVSS base score of 5.3, with high confidentiality impact due to potential information disclosure. The attack vector is local with high complexity and privileges required.
Technical Details of CVE-2023-40220
Understanding the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability stems from improper buffer restrictions in Intel(R) NUC BIOS firmware, allowing a privileged user to exploit local access for information disclosure.
Affected Systems and Versions
The affected system is the Intel(R) NUC BIOS firmware with specific versions. Refer to the vendor's advisory for more details.
Exploitation Mechanism
The exploitation involves leveraging the improper buffer restrictions to gain unauthorized access and potentially enable information disclosure via local privilege escalation.
Mitigation and Prevention
Guidelines for immediate steps to take, long-term security practices, and the importance of patching and updates.
Immediate Steps to Take
Users should restrict physical access to ensure only authorized personnel can interact with the affected devices. Implementing access controls can mitigate risks.
Long-Term Security Practices
Adopting a proactive security approach, such as regular security assessments, employee training, and staying informed about vendor security updates.
Patching and Updates
It's crucial to apply the latest firmware patches provided by Intel to address the vulnerability in the NUC BIOS firmware.