CVE-2022-1108 : Security Advisory and Response
Learn about CVE-2022-1108 impacting Lenovo ThinkPad BIOS, allowing attackers local access to execute malicious code. Mitigate risks with firmware updates.
A potential vulnerability in the SMI handler LenovoFlashDeviceInterface in Thinkpad X1 Fold Gen 1 could allow an attacker with local access and elevated privileges to execute arbitrary code.
Understanding CVE-2022-1108
This CVE identifies a vulnerability in the ThinkPad BIOS of Lenovo devices that could pose a security risk if exploited.
What is CVE-2022-1108?
The vulnerability stems from improper buffer validation in the SMI handler LenovoFlashDeviceInterface in Thinkpad X1 Fold Gen 1, potentially enabling an attacker to run malicious code with elevated privileges.
The Impact of CVE-2022-1108
With a CVSS base score of 6.7 and high impact on confidentiality, integrity, and availability, this vulnerability could lead to unauthorized code execution with serious consequences.
Technical Details of CVE-2022-1108
Let's delve into the specifics of this security flaw.
Vulnerability Description
The vulnerability arises from the improper handling of buffers in the SMI handler LenovoFlashDeviceInterface, opening the door for unauthorized code execution.
Affected Systems and Versions
The impacted product is the ThinkPad BIOS from Lenovo, with various versions affected by this vulnerability.
Exploitation Mechanism
An attacker with local access and elevated privileges could exploit this vulnerability to execute arbitrary code, compromising the system's security.
Mitigation and Prevention
Understand how to mitigate the risks associated with CVE-2022-1108.
Immediate Steps to Take
It is crucial to update the system firmware to a version that addresses this vulnerability. Refer to the Product Impact section in LEN-84943 for the specific version required for your model.
Long-Term Security Practices
Incorporate regular firmware updates and security patches into your cybersecurity practices to prevent potential vulnerabilities and enhance system security.
Patching and Updates
Stay informed about security updates and apply patches promptly to ensure your systems are protected against known vulnerabilities.