CVE-2019-19456 Explained : Impact and Mitigation

A reflected cross-site scripting (XSS) vulnerability was discovered in the server selection box within the login page of Wowza Streaming Engine versions equal to or earlier than 4.x.x. This vulnerability has been addressed in Wowza Streaming Engine 4.8.0.

Understanding CVE-2019-19456

This CVE involves a reflected XSS vulnerability in Wowza Streaming Engine.

What is CVE-2019-19456?

CVE-2019-19456 is a reflected cross-site scripting (XSS) vulnerability found in the server selection box within the login page of Wowza Streaming Engine versions equal to or earlier than 4.x.x.

The Impact of CVE-2019-19456

This vulnerability could allow an attacker to execute malicious scripts in the context of an authenticated user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-19456

This section provides more technical insights into the vulnerability.

Vulnerability Description

The XSS vulnerability exists in the server selection box on the login page at enginemanager/loginfailed.html in Wowza Streaming Engine versions <= 4.x.x.

Affected Systems and Versions

Wowza Streaming Engine versions equal to or earlier than 4.x.x

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the server selection box within the login page, which are then executed in the context of an authenticated user.

Mitigation and Prevention

Protecting systems from CVE-2019-19456 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Wowza Streaming Engine to version 4.8.0 or later to mitigate the vulnerability.
Regularly monitor and review login activities for any suspicious behavior.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Educate users on safe browsing practices and the risks of clicking on unknown links.

Patching and Updates

Ensure timely installation of security patches and updates provided by Wowza Streaming Engine to address known vulnerabilities.