CVE-2020-8323 : Security Advisory and Response
Learn about CVE-2020-8323, a Lenovo BIOS vulnerability that may allow arbitrary code execution. Find out the impact, affected systems, and mitigation steps to secure your device.
A potential vulnerability in the SMI callback function used in the Legacy SD driver in some Lenovo ThinkPad, ThinkStation, and Lenovo Notebook models may allow arbitrary code execution.
Understanding CVE-2020-8323
This CVE involves a potential vulnerability in Lenovo devices that could lead to arbitrary code execution.
What is CVE-2020-8323?
The vulnerability lies in the SMI callback function within the Legacy SD driver on specific Lenovo models, potentially enabling attackers to execute arbitrary code.
The Impact of CVE-2020-8323
The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 6.4. It poses a high risk to confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2020-8323
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows for arbitrary code execution due to a flaw in the SMI callback function within the Legacy SD driver on certain Lenovo devices.
Affected Systems and Versions
- Product: BIOS
- Vendor: Lenovo
- Versions: Various
Exploitation Mechanism
The vulnerability can be exploited locally, requiring high privileges and no user interaction.
Mitigation and Prevention
Protecting systems from CVE-2020-8323 is crucial to prevent potential exploitation.
Immediate Steps to Take
- Update system firmware to the version specified for your model in the Product Impact section of LEN-30042.
Long-Term Security Practices
- Regularly monitor for firmware updates and security advisories from Lenovo.
Patching and Updates
- Stay informed about security patches and updates released by Lenovo to address this vulnerability.