CVE-2021-42083 : Security Advisory and Response
Learn about CVE-2021-42083, an authenticated stored XSS vulnerability in OSNEXUS QuantaStor 6.0.0.335. Find out the impact, affected systems, exploitation, and mitigation steps.
An authenticated attacker can create alerts triggering a stored XSS attack in OSNEXUS QuantaStor 6.0.0.335.
Understanding CVE-2021-42083
This CVE involves an authenticated stored cross-site scripting vulnerability in OSNEXUS QuantaStor.
What is CVE-2021-42083?
An authenticated attacker can manipulate alerts to execute a stored XSS attack, potentially leading to unauthorized actions on the affected system.
The Impact of CVE-2021-42083
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: None
Technical Details of CVE-2021-42083
This section provides technical details of the vulnerability in OSNEXUS QuantaStor.
Vulnerability Description
The vulnerability allows authenticated attackers to inject malicious scripts into alerts, leading to stored XSS attacks.
Affected Systems and Versions
- Affected Systems: Windows, Linux
- Affected Version: OSNEXUS QuantaStor version 6.0.0.335 (and below)
Exploitation Mechanism
Attackers with authenticated access exploit the vulnerability by manipulating alerts to execute malicious scripts.
Mitigation and Prevention
Steps to protect systems from the CVE-2021-42083 vulnerability.
Immediate Steps to Take
- Upgrade OSNEXUS QuantaStor to the latest version.
Long-Term Security Practices
- Regularly monitor and review alerts for any unusual activity.
- Implement proper authentication controls and user access management.
- Conduct security training to educate users about social engineering tactics.
Patching and Updates
Ensure timely installation of security patches and updates to fix vulnerabilities.