CVE-2021-42566 Explained : Impact and Mitigation
Discover the impact of CVE-2021-42566, a Cross-Site Scripting vulnerability in myfactory.FMS before version 7.1-912, allowing malicious script execution via the Error parameter. Learn how to mitigate this security flaw.
myfactory.FMS before 7.1-912 allows XSS via the Error parameter.
Understanding CVE-2021-42566
This CVE involves a Cross-Site Scripting (XSS) vulnerability in myfactory.FMS.
What is CVE-2021-42566?
CVE-2021-42566 is a security vulnerability in myfactory.FMS before version 7.1-912 that allows attackers to execute XSS attacks via the Error parameter.
The Impact of CVE-2021-42566
The vulnerability can be exploited by malicious actors to inject and execute malicious scripts in the context of a user's web session, potentially leading to various attacks such as data theft, account takeover, or privilege escalation.
Technical Details of CVE-2021-42566
This section provides detailed technical insights into the CVE.
Vulnerability Description
The vulnerability lies in the myfactory.FMS software before version 7.1-912, allowing attackers to insert and execute malicious scripts through the Error parameter, leading to XSS attacks.
Affected Systems and Versions
- Affected Product: myfactory.FMS
- Affected Version: Before 7.1-912
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious input in the Error parameter to execute unauthorized scripts within the application.
Mitigation and Prevention
Protecting against and addressing CVE-2021-42566 is crucial for maintaining system security.
Immediate Steps to Take
- Update myfactory.FMS to version 7.1-912 or later to mitigate the vulnerability.
- Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
- Regularly monitor and audit web application logs for any suspicious activities.
Long-Term Security Practices
- Conduct regular security training for developers to raise awareness of secure coding practices.
- Employ web application firewalls (WAFs) to filter and block malicious traffic attempting to exploit XSS vulnerabilities.
Patching and Updates
- Stay informed about security updates and patch releases for myfactory.FMS to address known vulnerabilities and enhance system security.