CVE-2019-19453 : Security Advisory and Response
Learn about CVE-2019-19453, a Cross-Site Scripting (XSS) vulnerability in Wowza Streaming Engine versions prior to 4.8.5. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A Cross-Site Scripting (XSS) vulnerability was discovered in Wowza Streaming Engine versions prior to 4.8.5, allowing authenticated users to execute malicious payloads. This issue has been resolved in version 4.8.5.
Understanding CVE-2019-19453
This CVE pertains to a specific XSS vulnerability found in Wowza Streaming Engine.
What is CVE-2019-19453?
The CVE-2019-19453 vulnerability involves the insertion of a malicious payload by an authenticated user with permission to modify the proxy license, leading to an XSS attack on the server settings page.
The Impact of CVE-2019-19453
The vulnerability could be exploited by an authenticated user to execute arbitrary code within the context of the affected site, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2019-19453
This section provides more technical insights into the vulnerability.
Vulnerability Description
The XSS vulnerability in Wowza Streaming Engine versions before 4.8.5 allows an authenticated user to inject and execute malicious scripts, impacting the server settings page.
Affected Systems and Versions
- Wowza Streaming Engine versions preceding 4.8.5
Exploitation Mechanism
- An authenticated user with proxy license editing access inserts a malicious payload triggering the XSS attack on the server settings page.
Mitigation and Prevention
Protecting systems from CVE-2019-19453 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade to Wowza Streaming Engine version 4.8.5 or later to mitigate the vulnerability.
- Regularly monitor and audit user permissions to prevent unauthorized access.
Long-Term Security Practices
- Implement input validation to sanitize user inputs and prevent XSS attacks.
- Educate users on safe browsing practices and the risks associated with executing unauthorized scripts.
Patching and Updates
- Stay informed about security updates and patches released by Wowza Streaming Engine to address vulnerabilities like CVE-2019-19453.