CVE-2021-42082 : Vulnerability Insights and Analysis
Learn about CVE-2021-42082, a local privilege escalation vulnerability in OSNEXUS QuantaStor, allowing local users to execute scripts under root privileges. Find out the impacted systems, exploitation mechanism, and mitigation steps.
A local privilege escalation vulnerability in OSNEXUS QuantaStor before 6.0.0.355 allows local users to execute scripts under root privileges.
Understanding CVE-2021-42082
What is CVE-2021-42082?
CVE-2021-42082 is a vulnerability in OSNEXUS QuantaStor that enables local users to run scripts with root privileges.
The Impact of CVE-2021-42082
The impact of this vulnerability is significant as it allows unauthorized local users to escalate their privileges to root, posing a high risk of system compromise.
Technical Details of CVE-2021-42082
Vulnerability Description
The vulnerability is categorized under CWE-269 - Improper Privilege Management, enabling local users to execute scripts as the root user.
Affected Systems and Versions
- Vendor: OSNEXUS
- Product: QuantaStor
- Platforms: Windows, Linux
- Affected Versions: All versions less than 6.0.0.355
Exploitation Mechanism
The vulnerability leverages insufficient privilege checks, allowing local users to perform unauthorized actions with elevated privileges.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to the latest version of OSNEXUS QuantaStor (6.0.0.355) to address the vulnerability.
Long-Term Security Practices
- Regularly review and update privilege management policies.
- Enforce the principle of least privilege to restrict user access rights.
- Monitor and audit user activities to detect unauthorized actions.
- Educate users on secure practices to prevent privilege escalation incidents.
- Implement security controls to prevent unauthorized script execution.
- Stay informed about security updates and apply patches promptly.