CVE-2021-26724 : Exploit Details and Defense Strategies
Discover the impact of CVE-2021-26724, an OS Command Injection vulnerability in Nozomi Networks Guardian and CMC allowing remote code execution via date settings or hostname changes. Learn about affected versions and mitigation steps.
This CVE-2021-26724 article provides an overview of an OS Command Injection vulnerability found in Nozomi Networks Guardian and CMC. The vulnerability allows authenticated administrators to execute remote code by changing date settings or hostname using the web GUI.
Understanding CVE-2021-26724
This section delves into the impact, technical details, and mitigation strategies related to CVE-2021-26724.
What is CVE-2021-26724?
The CVE-2021-26724 vulnerability involves an OS Command Injection issue in Nozomi Networks Guardian and CMC, enabling authenticated administrators to perform remote code execution by altering date settings or hostname via the web GUI.
The Impact of CVE-2021-26724
The vulnerability poses a high impact level, with a CVSS base score of 7.2. It has a high severity rating, affecting confidentiality, integrity, and availability. The attack complexity is low, requiring high privileges.
Technical Details of CVE-2021-26724
This section explores the specific technical aspects of the CVE-2021-26724 vulnerability.
Vulnerability Description
The vulnerability allows authenticated administrators to conduct OS Command Injections via the web GUI of Nozomi Networks Guardian and CMC, leading to remote code execution.
Affected Systems and Versions
Nozomi Networks Guardian versions 20.0.7.3 and prior, as well as Nozomi Networks CMC versions 20.0.7.3 and prior, are impacted by this vulnerability.
Exploitation Mechanism
By changing date settings or hostname using the web GUI, authenticated administrators can exploit the vulnerability to execute remote code on affected systems.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of CVE-2021-26724.
Immediate Steps to Take
Utilize the internal firewall feature to restrict management interface access and review user roles to enhance security.
Long-Term Security Practices
Upgrade Nozomi Networks Guardian to v19.0.12 or v20.0.7.4 to address the vulnerability and prevent future attacks.
Patching and Updates
Stay updated with the latest patches and security updates provided by Nozomi Networks to safeguard systems.