CVE-2017-6913 : Security Advisory and Response

A security flaw known as cross-site scripting (XSS) has been identified in Open-Xchange webmail versions prior to 7.6.3-rev28. This vulnerability enables malicious individuals to introduce unauthorized web script or HTML by exploiting the event attribute within a time tag.

Understanding CVE-2017-6913

Cross-site scripting (XSS) vulnerability in the Open-Xchange webmail before 7.6.3-rev28 allows remote attackers to inject arbitrary web script or HTML via the event attribute in a time tag.

What is CVE-2017-6913?

Type: Cross-site scripting (XSS) vulnerability
Date Public: September 13, 2018

The Impact of CVE-2017-6913

Malicious individuals can inject unauthorized web script or HTML
Attackers can exploit the event attribute within a time tag

Technical Details of CVE-2017-6913

Cross-site scripting (XSS) vulnerability in Open-Xchange webmail versions prior to 7.6.3-rev28.

Vulnerability Description

Allows remote attackers to inject arbitrary web script or HTML
Exploits the event attribute in a time tag

Affected Systems and Versions

Open-Xchange webmail versions prior to 7.6.3-rev28

Exploitation Mechanism

Attackers exploit the event attribute within a time tag

Mitigation and Prevention

Immediate Steps to Take:

Update Open-Xchange webmail to version 7.6.3-rev28 or later
Implement input validation to prevent XSS attacks

Long-Term Security Practices:

Regularly update software and apply security patches
Educate users on safe browsing habits and phishing awareness
Monitor web applications for suspicious activities
Utilize web application firewalls to filter and block malicious traffic
Conduct security audits and penetration testing to identify vulnerabilities
Patching and Updates:
Apply patches and updates provided by Open-Xchange to address the XSS vulnerability