Learn about CVE-2021-21884, a critical OS command injection vulnerability in Lantronix PremierWave 2050 8.9.0.0R4. Understand its impact, technical details, and mitigation steps to secure your systems.
This article discusses the OS command injection vulnerability found in Lantronix PremierWave 2050 8.9.0.0R4, its impact, technical details, and mitigation steps.
Understanding CVE-2021-21884
This section delves into the details of the OS command injection vulnerability affecting Lantronix PremierWave 2050 8.9.0.0R4.
What is CVE-2021-21884?
CVE-2021-21884 is an OS command injection vulnerability in the Web Manager SslGenerateCSR functionality of Lantronix PremierWave 2050 8.9.0.0R4. Attackers can execute arbitrary commands via a specially-crafted HTTP request.
The Impact of CVE-2021-21884
With a CVSS base score of 9.1 (Critical), this vulnerability poses a high risk in terms of confidentiality, integrity, and availability. An attacker can exploit it through an authenticated HTTP request, leading to severe consequences.
Technical Details of CVE-2021-21884
This section highlights the technical aspects of the CVE-2021-21884 vulnerability.
Vulnerability Description
The vulnerability allows attackers to execute arbitrary commands by sending a malicious HTTP request to the Web Manager SslGenerateCSR function of Lantronix PremierWave 2050 8.9.0.0R4.
Affected Systems and Versions
The issue impacts Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU).
Exploitation Mechanism
Attackers can trigger this vulnerability by crafting a specific HTTP request, which, when executed, allows arbitrary command execution.
Mitigation and Prevention
In this section, we outline the steps to mitigate and prevent the exploitation of CVE-2021-21884.
Immediate Steps to Take
Organizations should apply security patches provided by Lantronix promptly. Network filtering and access controls can also limit exposure to this vulnerability.
Long-Term Security Practices
Implementing the principle of least privilege, regularly updating software, and conducting security audits can enhance overall system security.
Patching and Updates
Stay informed about security updates released by Lantronix and promptly apply patches to address CVE-2021-21884.