CVE-2021-3614 : Exploit Details and Defense Strategies
Learn about CVE-2021-3614, a vulnerability impacting Lenovo Notebook BIOS systems. Find out the impact, technical details, and mitigation steps to secure affected devices.
A vulnerability was reported on some Lenovo Notebook systems that could allow an attacker with physical access to elevate privileges under certain conditions during a BIOS update performed by Lenovo Vantage.
Understanding CVE-2021-3614
This section provides insights into the vulnerability and its impact on Lenovo Notebook systems.
What is CVE-2021-3614?
CVE-2021-3614 is a vulnerability found in some Lenovo Notebook systems that enables an attacker with physical access to escalate privileges during a BIOS update using Lenovo Vantage.
The Impact of CVE-2021-3614
The vulnerability poses a medium-severity risk with a base score of 6.4 under CVSS v3.1. It has a high impact on confidentiality, integrity, and availability.
Technical Details of CVE-2021-3614
Learn more about the specifics of this vulnerability.
Vulnerability Description
The vulnerability allows an attacker physical access to exploit privileges when updating the BIOS using Lenovo Vantage.
Affected Systems and Versions
Lenovo Notebook BIOS systems with various versions are affected by this vulnerability.
Exploitation Mechanism
The attack vector for CVE-2021-3614 is physical, with low attack complexity and required user interaction.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2021-3614.
Immediate Steps to Take
Users are advised to update the system firmware to the recommended version or newer as indicated in the Lenovo product impact section.
Long-Term Security Practices
Implement stringent physical security measures and restrict access to BIOS updates to prevent unauthorized privilege escalation.
Patching and Updates
Stay informed about security patches and updates from Lenovo to address vulnerabilities promptly.