CVE-2022-42281 Explained : Impact and Mitigation
Discover the impact and mitigation steps for CVE-2022-42281, a critical vulnerability in NVIDIA DGX A100 servers' SBIOS firmware. Learn how to prevent code execution and data disclosure.
A vulnerability has been discovered in NVIDIA DGX A100 servers that could allow a highly privileged local attacker to execute arbitrary code, leading to various security risks.
Understanding CVE-2022-42281
This section provides an overview of the CVE-2022-42281 vulnerability and its implications.
What is CVE-2022-42281?
CVE-2022-42281 is a vulnerability found in the SBIOS firmware of NVIDIA DGX A100 servers. It could be exploited by a local attacker to trigger an out-of-bounds write, potentially resulting in code execution, denial of service, compromised integrity, and information disclosure.
The Impact of CVE-2022-42281
The vulnerability poses critical security risks, including code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
Technical Details of CVE-2022-42281
This section delves into the technical aspects of the CVE-2022-42281 vulnerability.
Vulnerability Description
The vulnerability resides in the SBIOS firmware of NVIDIA DGX A100 servers, specifically in the FsRecovery component. It enables a highly privileged local attacker to perform an out-of-bounds write.
Affected Systems and Versions
NVIDIA DGX servers running SBIOS firmware versions earlier than 1.18 are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability can be exploited by a highly privileged local attacker to execute arbitrary code, leading to severe consequences.
Mitigation and Prevention
This section discusses the steps to mitigate and prevent exploitation of the CVE-2022-42281 vulnerability.
Immediate Steps to Take
Immediately update the SBIOS firmware of NVIDIA DGX A100 servers to version 1.18 or later. Restrict physical access to the servers to prevent unauthorized individuals from exploiting the vulnerability.
Long-Term Security Practices
Implement robust security measures such as regular security assessments, employee training on secure practices, and timely deployment of security patches.
Patching and Updates
Stay informed about security updates from NVIDIA and promptly install patches to address known vulnerabilities.