CVE-2019-15954 : Exploit Details and Defense Strategies

Total.js CMS 12.0.0 allows remote command execution by exploiting a vulnerability in the creation of malicious widgets.

Understanding CVE-2019-15954

Total.js CMS 12.0.0 is susceptible to remote command execution through specially crafted widgets.

What is CVE-2019-15954?

A vulnerability in Total.js CMS 12.0.0 allows authenticated users with widget privileges to execute remote commands on the server by creating a malicious widget with JavaScript code.

The Impact of CVE-2019-15954

An authenticated user can execute remote commands on the server by creating a malicious widget
The vulnerability allows bypassing the sandbox object during server-side evaluation

Technical Details of CVE-2019-15954

Total.js CMS 12.0.0 vulnerability details

Vulnerability Description

Authenticated users with widget privileges can achieve Remote Command Execution (RCE) by creating a malicious widget
Malicious widget contains JavaScript code within a special tag that is evaluated server-side

Affected Systems and Versions

Total.js CMS 12.0.0

Exploitation Mechanism

Inserting JavaScript code within a special tag in a malicious widget
Using a payload to bypass the sandbox object during back-end evaluation

Mitigation and Prevention

Protecting against CVE-2019-15954

Immediate Steps to Take

Update Total.js CMS to the latest version
Restrict widget privileges to trusted users

Long-Term Security Practices

Regularly review and monitor widget creation and usage
Implement code reviews for widget functionalities

Patching and Updates

Apply security patches and updates provided by Total.js CMS