CVE-2021-21872 : Vulnerability Insights and Analysis

A critical OS command injection vulnerability has been identified in Lantronix PremierWave 2050 8.9.0.0R4, potentially allowing attackers to execute arbitrary commands. This CVE has a CVSS base score of 9.9.

Understanding CVE-2021-21872

This section delves into the details of the identified CVE.

What is CVE-2021-21872?

CVE-2021-21872 is an OS command injection vulnerability present in the Traceroute functionality of Lantronix PremierWave 2050 8.9.0.0R4. Attackers can exploit this by sending a specially-crafted HTTP request to achieve arbitrary command execution.

The Impact of CVE-2021-21872

With a CVSS base score of 9.9, this vulnerability is classified as critical due to its high impact on confidentiality, integrity, and availability.

Technical Details of CVE-2021-21872

Explore the technical aspects of CVE-2021-21872 further in this section.

Vulnerability Description

The vulnerability allows for OS command injection through the Web Manager Diagnostics Traceroute feature, ultimately leading to unauthorized command execution.

Affected Systems and Versions

Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU) is confirmed to be affected by this vulnerability.

Exploitation Mechanism

Attackers can trigger this vulnerability by sending a specifically crafted HTTP request while being authenticated.

Mitigation and Prevention

Discover the recommended steps to mitigate the risks associated with CVE-2021-21872.

Immediate Steps to Take

Immediately update the affected systems to the latest secure version. Additionally, restrict network access to vulnerable components.

Long-Term Security Practices

Consider implementing network segmentation, regularly monitoring for unusual activities, and enhancing user access controls.

Patching and Updates

Stay informed about security patches released by Lantronix and promptly apply them to ensure protection against known vulnerabilities.