CVE-2017-15573 : Security Advisory and Response

Redmine versions prior to 3.2.6 and 3.3.x before 3.3.3 are vulnerable to cross-site scripting (XSS) attacks due to mishandling of markup in wiki content.

Understanding CVE-2017-15573

This CVE identifies a security vulnerability in Redmine that could be exploited for XSS attacks.

What is CVE-2017-15573?

CVE-2017-15573 is a vulnerability in Redmine versions before 3.2.6 and 3.3.x before 3.3.3, allowing for XSS attacks due to mishandling of markup in wiki content.

The Impact of CVE-2017-15573

The vulnerability could lead to malicious actors executing scripts in the context of a user's browser, potentially compromising sensitive information or performing unauthorized actions.

Technical Details of CVE-2017-15573

Redmine's mishandling of markup in wiki content exposes users to XSS attacks.

Vulnerability Description

Redmine versions prior to 3.2.6 and 3.3.x before 3.3.3 are susceptible to XSS due to improper handling of markup in wiki content.

Affected Systems and Versions

Redmine versions prior to 3.2.6
Redmine 3.3.x versions before 3.3.3

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into wiki content, which are then executed in the browsers of users viewing the affected content.

Mitigation and Prevention

Immediate action and long-term security practices can help mitigate the risks associated with CVE-2017-15573.

Immediate Steps to Take

Update Redmine to version 3.2.6 or 3.3.3 to patch the vulnerability.
Educate users to avoid clicking on suspicious links or content within Redmine.

Long-Term Security Practices

Regularly monitor and update Redmine to the latest secure versions.
Implement content security policies to prevent XSS attacks.

Patching and Updates

Apply patches provided by Redmine promptly to address security vulnerabilities.