CVE-2021-4406 Explained : Impact and Mitigation
Learn about CVE-2021-4406, a critical vulnerability in OSNEXUS QuantaStor that allows an authenticated attacker to execute commands as root. Find out the impact, technical details, and mitigation strategies.
A critical vulnerability has been identified in OSNEXUS QuantaStor version 6.0.0.355 and earlier that allows an authenticated administrator to execute commands as root, leading to remote command execution. This CVE has a base severity score of 9.1 according to CVSS version 3.1.
Understanding CVE-2021-4406
This section will discuss what CVE-2021-4406 entails, its impact, technical details, and mitigation strategies.
What is CVE-2021-4406?
The CVE-2021-4406 vulnerability involves an improper neutralization of special elements used in a command ('Command Injection') in OSNEXUS QuantaStor. It enables an administrator to execute commands as root through the alerts management dialog.
The Impact of CVE-2021-4406
With a critical base severity score of 9.1, this vulnerability poses a significant threat to the confidentiality, integrity, and availability of affected systems. An attacker could exploit this flaw to gain unauthorized root access remotely.
Technical Details of CVE-2021-4406
Let's delve into the specifics of the vulnerability, including its description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The flaw allows an authenticated administrator to execute arbitrary commands as root via the alerts management dialog in OSNEXUS QuantaStor.
Affected Systems and Versions
OSNEXUS QuantaStor versions up to 6.0.0.355 are affected by this vulnerability. Systems running these versions are at risk of exploitation.
Exploitation Mechanism
By leveraging the vulnerability in the alerts management dialog, an attacker with administrative privileges can execute commands as root remotely.
Mitigation and Prevention
Discover the immediate steps to secure your system, best security practices for the long term, and the importance of applying patches and updates.
Immediate Steps to Take
It is crucial to upgrade to the latest version of OSNEXUS QuantaStor to mitigate the CVE-2021-4406 vulnerability. Ensure that the latest version addresses this security issue.
Long-Term Security Practices
In addition to patching vulnerabilities promptly, establish robust security protocols, restrict administrator privileges, and conduct regular security audits to prevent such exploits.
Patching and Updates
Regularly check for security updates and patches provided by OSNEXUS and apply them promptly to safeguard your system against known vulnerabilities.