CVE-2023-43570 : What You Need to Know
Learn about CVE-2023-43570, a vulnerability in the SMI callback function of Lenovo Desktop BIOS that allows local attackers to execute arbitrary code. Find out the impact and mitigation steps here.
A potential vulnerability was reported in the SMI callback function of the OemSmi driver in Lenovo Desktop BIOS that may allow a local attacker with elevated permissions to execute arbitrary code.
Understanding CVE-2023-43570
This CVE involves a vulnerability in the SMI callback function of the OemSmi driver in Lenovo Desktop BIOS, potentially enabling a local attacker to run arbitrary code with elevated permissions.
What is CVE-2023-43570?
CVE-2023-43570 is a medium-severity vulnerability that could be exploited by a local attacker to execute arbitrary code due to improper input validation.
The Impact of CVE-2023-43570
The impact of this vulnerability is rated as high for both confidentiality and integrity, with a CVSS base score of 6.7. Attack complexity is low, with the attack vector being local and high privileges required for exploitation.
Technical Details of CVE-2023-43570
This section provides specific technical details surrounding CVE-2023-43570.
Vulnerability Description
The vulnerability lies in the SMI callback function of the OemSmi driver within Lenovo Desktop BIOS, allowing an attacker with elevated permissions to execute arbitrary code.
Affected Systems and Versions
The vulnerability affects various versions of Lenovo Desktop BIOS.
Exploitation Mechanism
The vulnerability could be exploited by a local attacker with elevated permissions.
Mitigation and Prevention
Taking immediate action to address and prevent the exploitation of CVE-2023-43570 is crucial.
Immediate Steps to Take
It is recommended to update the system firmware to the version specified for your Lenovo model. Visit the Lenovo product security advisory page for further instructions.
Long-Term Security Practices
Implementing regular security updates and patches, along with maintaining secure configurations, can help prevent similar vulnerabilities in the future.
Patching and Updates
Lenovo has provided a solution to this vulnerability by releasing updated system firmware. Follow the instructions provided by Lenovo to apply the necessary patches.