CVE-2021-42080 : What You Need to Know
Learn about CVE-2021-42080, a CVE-79 vulnerability in OSNEXUS QuantaStor allowing a reflected XSS attack. Find mitigation steps and prevention measures here.
A reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355 could allow an attacker to launch a Reflected XSS attack using a crafted URL.
Understanding CVE-2021-42080
What is CVE-2021-42080?
The CVE-2021-42080 vulnerability is classified as a CWE-79 - Improper Neutralization of Input During Web Page Generation (Cross-site Scripting).
The Impact of CVE-2021-42080
The vulnerability has a CVSS base score of 6.5, indicating a medium severity level with high confidentiality impact.
Technical Details of CVE-2021-42080
Vulnerability Description
An attacker can exploit this vulnerability to execute a Reflected XSS attack by manipulating user input within a crafted URL.
Affected Systems and Versions
- Vendor: OSNEXUS
- Product: QuantaStor
- Versions Affected: Up to 6.0.0.355
Exploitation Mechanism
The attacker can trick a user into clicking a malicious link that contains the crafted URL, leading to the execution of arbitrary scripts in the victim's browser.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to the latest version of OSNEXUS QuantaStor to mitigate the vulnerability.
Long-Term Security Practices
- Regularly educate users on identifying and avoiding phishing emails and suspicious links.
- Implement content security policies and input validation mechanisms to prevent XSS attacks.
Patching and Updates
Ensure timely patching and updates of affected systems to address known security vulnerabilities.