CVE-2019-5672 : Vulnerability Insights and Analysis

NVIDIA Jetson TX1 and TX2 devices are affected by a vulnerability in the Linux for Tegra (L4T) operating system, potentially leading to information disclosure.

Understanding CVE-2019-5672

This CVE identifies a security issue in NVIDIA Jetson TX1 and TX2 devices that could result in the exposure of sensitive information.

What is CVE-2019-5672?

The vulnerability in the Linux for Tegra (L4T) OS on Jetson TX1 and TX2 devices stems from the failure to replace Secure Shell (SSH) keys with unique host keys after generating and flashing the sample rootfs.

The Impact of CVE-2019-5672

The vulnerability could allow unauthorized access to sensitive data due to the reuse of SSH keys, potentially leading to information disclosure.

Technical Details of CVE-2019-5672

NVIDIA Jetson TX1 and TX2 devices are susceptible to the following:

Vulnerability Description

Failure to replace SSH keys in the sample rootfs with unique host keys

Affected Systems and Versions

Products: Jetson TX1 and TX2
Vendor: NVIDIA
Vulnerable Versions: All versions prior to R28.3

Exploitation Mechanism

Attackers could exploit the reused SSH keys to gain unauthorized access and potentially disclose sensitive information.

Mitigation and Prevention

To address CVE-2019-5672, consider the following:

Immediate Steps to Take

Update to version R28.3 or later to mitigate the vulnerability
Regenerate SSH keys to ensure unique host keys are in use

Long-Term Security Practices

Implement regular key rotation and updates to enhance security
Monitor and restrict SSH access to prevent unauthorized entry

Patching and Updates

Apply patches and firmware updates provided by NVIDIA to address the vulnerability