CVE-2020-11484 : Exploit Details and Defense Strategies

NVIDIA DGX servers, specifically all DGX-1 models with BMC firmware versions prior to 3.38.30, are affected by a vulnerability that allows an attacker with administrative privileges to obtain the BMC/IPMI user password hash, potentially leading to information disclosure.

Understanding CVE-2020-11484

This CVE identifies a security issue in NVIDIA DGX servers that could result in sensitive information exposure.

What is CVE-2020-11484?

The vulnerability in the AMI BMC firmware of NVIDIA DGX-1 servers allows attackers with admin rights to access the BMC/IPMI user password hash, enabling potential information disclosure.

The Impact of CVE-2020-11484

The vulnerability poses a risk of unauthorized access to sensitive information stored on affected NVIDIA DGX servers.

Technical Details of CVE-2020-11484

NVIDIA DGX servers with specific BMC firmware versions are susceptible to this security flaw.

Vulnerability Description

The vulnerability allows attackers with administrative privileges to retrieve the hash of the BMC/IPMI user password, potentially leading to information exposure.

Affected Systems and Versions

Product: NVIDIA DGX Servers
Vendor: NVIDIA
Affected Version: All DGX-1 with BMC firmware versions prior to 3.38.30

Exploitation Mechanism

Attackers need administrative privileges to exploit this vulnerability and access the BMC/IPMI user password hash.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2020-11484.

Immediate Steps to Take

Update BMC firmware to version 3.38.30 or later to patch the vulnerability.
Monitor system logs for any suspicious activities indicating unauthorized access.

Long-Term Security Practices

Regularly review and update firmware and software to address security vulnerabilities.
Implement strong password policies and access controls to prevent unauthorized access.
Conduct security audits and assessments to identify and remediate potential weaknesses.

Patching and Updates

Apply patches and updates provided by NVIDIA to secure the BMC firmware and prevent exploitation of the vulnerability.