CVE-2019-20451 Explained : Impact and Mitigation

In Prismview System 9 11.10.17.00 and Prismview Player 11 13.09.1100, a vulnerability in the HTTP API allows for remote code execution by uploading specific files and making requests. Authentication is required, but credentials can be obtained.

Understanding CVE-2019-20451

This CVE involves a security flaw in Prismview System and Prismview Player that can be exploited for remote code execution.

What is CVE-2019-20451?

The HTTP API in Prismview System and Prismview Player versions mentioned allows attackers to execute remote code by uploading specific files and sending requests to certain endpoints. Even though authentication is needed, attackers can retrieve necessary credentials.

The Impact of CVE-2019-20451

This vulnerability could lead to unauthorized remote code execution on affected systems, potentially compromising data and system integrity.

Technical Details of CVE-2019-20451

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in the HTTP API of Prismview System and Prismview Player enables attackers to achieve remote code execution by uploading RebootSystem.lnk and accessing /REBOOTSYSTEM or /RESTARTVNC endpoints. Despite the authentication requirement, attackers can download an XML file containing the essential credentials.

Affected Systems and Versions

Prismview System 9 version 11.10.17.00
Prismview Player 11 version 13.09.1100

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading RebootSystem.lnk and then sending requests to /REBOOTSYSTEM or /RESTARTVNC endpoints, bypassing the authentication to obtain necessary credentials.

Mitigation and Prevention

Protecting systems from CVE-2019-20451 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly to mitigate the vulnerability.
Implement strong authentication mechanisms to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor and audit system logs for any suspicious activities.
Conduct security training for employees to raise awareness of potential threats.

Patching and Updates

Regularly check for security updates and patches from the vendor to address this vulnerability.