CVE-2019-0646 Explained : Impact and Mitigation

Team Foundation Server Cross-site Scripting Vulnerability

Understanding CVE-2019-0646

A vulnerability known as Cross-site Scripting (XSS) in Team Foundation Server allows unfiltered user input, impacting the functionality of Team.

What is CVE-2019-0646?

This vulnerability in Team Foundation Server arises from inadequate filtering of user input, enabling Cross-site Scripting attacks.

The Impact of CVE-2019-0646

The vulnerability affects the security of Team Foundation Server, potentially leading to spoofing attacks.

Technical Details of CVE-2019-0646

Team Foundation Server 2018 Update 3.2 is specifically impacted by this vulnerability.

Vulnerability Description

The XSS vulnerability in Team Foundation Server arises from improper sanitization of user input, allowing malicious scripts to be injected.

Affected Systems and Versions

Product: Team
Vendor: Microsoft
Version: Foundation Server 2018 Update 3.2

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts through unfiltered user input, potentially leading to spoofing attacks.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Apply security patches provided by Microsoft promptly.
Implement input validation mechanisms to sanitize user input effectively.

Long-Term Security Practices

Regularly update and patch Team Foundation Server to mitigate security risks.
Educate users on safe input practices to prevent XSS vulnerabilities.
Monitor and audit user input to detect and prevent malicious scripts.
Employ web application firewalls to filter and block malicious input.

Patching and Updates

Ensure that all systems running Team Foundation Server are updated with the latest security patches to address the XSS vulnerability.