CVE-2019-1305 : What You Need to Know

Team Foundation Server and Azure DevOps Server are affected by a Cross-site Scripting (XSS) vulnerability, potentially allowing spoofing attacks.

Understanding CVE-2019-1305

A vulnerability known as Cross-site Scripting (XSS) has been identified in Team Foundation Server and Azure DevOps Server due to inadequate sanitization of user input.

What is CVE-2019-1305?

This vulnerability, also referred to as 'Team Foundation Server Cross-site Scripting Vulnerability,' allows attackers to inject malicious scripts into web pages viewed by other users.

The Impact of CVE-2019-1305

The presence of this vulnerability could lead to spoofing attacks, where attackers can impersonate legitimate users to gain unauthorized access or perform malicious actions.

Technical Details of CVE-2019-1305

Team Foundation Server and Azure DevOps Server are affected by this XSS vulnerability.

Vulnerability Description

The vulnerability arises from the lack of proper sanitization of user-provided input, enabling attackers to execute arbitrary scripts in the context of a user's browser.

Affected Systems and Versions

Team Foundation Server 2017 Update 3.1
Team Foundation Server 2018 Update 1.2 and Update 3.2
Team Foundation Server 2015 Update 4.2
Azure DevOps Server 2019.0.1

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into web pages, which are then executed in the browsers of other users, potentially leading to unauthorized actions.

Mitigation and Prevention

To address CVE-2019-1305, follow these steps:

Immediate Steps to Take

Apply security updates provided by Microsoft promptly.
Implement input validation mechanisms to sanitize user input effectively.
Educate users about the risks of clicking on suspicious links or downloading files from untrusted sources.

Long-Term Security Practices

Regularly monitor and audit web applications for vulnerabilities.
Conduct security training for developers to enhance awareness of secure coding practices.

Patching and Updates

Stay informed about security advisories and patches released by Microsoft.
Keep all software and systems up to date with the latest security updates.