CVE-2020-11488 : Security Advisory and Response
Learn about CVE-2020-11488 affecting NVIDIA DGX Servers. Understand the impact, affected systems, exploitation mechanism, and mitigation steps to secure your systems.
NVIDIA DGX servers, specifically all DGX-1 with BMC firmware versions prior to 3.38.30 and all DGX-2 with BMC firmware versions prior to 1.06.06, have a vulnerability in the AMI BMC firmware that could result in information disclosure or code execution.
Understanding CVE-2020-11488
This CVE affects NVIDIA DGX Servers due to a lack of validation in the RSA 1024 public key used to verify the firmware signature.
What is CVE-2020-11488?
The vulnerability in the AMI BMC firmware of NVIDIA DGX servers allows for potential information disclosure or code execution due to inadequate validation of the RSA 1024 public key.
The Impact of CVE-2020-11488
The vulnerability could lead to severe consequences, including unauthorized access to sensitive information or the execution of malicious code on affected systems.
Technical Details of CVE-2020-11488
NVIDIA DGX servers are susceptible to exploitation due to the following details:
Vulnerability Description
The vulnerability arises from the lack of validation in the RSA 1024 public key used to verify the firmware signature, enabling potential information disclosure or code execution.
Affected Systems and Versions
- Product: NVIDIA DGX Servers
- Vendor: NVIDIA
- Versions Affected: All DGX-1 with BMC firmware versions prior to 3.38.30 and all DGX-2 with BMC firmware versions prior to 1.06.06
Exploitation Mechanism
The vulnerability allows threat actors to exploit the AMI BMC firmware to bypass key validation, potentially leading to information disclosure or code execution.
Mitigation and Prevention
To address CVE-2020-11488, consider the following steps:
Immediate Steps to Take
- Update BMC firmware to versions 3.38.30 for DGX-1 and 1.06.06 for DGX-2 to mitigate the vulnerability.
- Monitor system logs for any suspicious activities that could indicate exploitation.
Long-Term Security Practices
- Regularly update firmware and software to patch known vulnerabilities.
- Implement network segmentation and access controls to limit exposure to potential threats.
Patching and Updates
- Stay informed about security updates from NVIDIA and apply patches promptly to secure the DGX servers against known vulnerabilities.