CVE-2019-16512 : Vulnerability Insights and Analysis

A vulnerability has been identified in ConnectWise Control, previously known as ScreenConnect, version 19.3.25270.7185, involving a stored XSS vulnerability in the Appearance modifier.

Understanding CVE-2019-16512

This CVE involves a security issue in ConnectWise Control that could allow for stored cross-site scripting attacks.

What is CVE-2019-16512?

ConnectWise Control, specifically version 19.3.25270.7185, is susceptible to a stored XSS vulnerability in the Appearance modifier, potentially enabling attackers to execute malicious scripts in the context of a user's session.

The Impact of CVE-2019-16512

This vulnerability could be exploited by malicious actors to execute arbitrary code, steal sensitive information, or perform actions on behalf of users without their consent.

Technical Details of CVE-2019-16512

ConnectWise Control version 19.3.25270.7185 is affected by the following:

Vulnerability Description

The vulnerability lies in the Appearance modifier of ConnectWise Control, allowing for the storage of malicious scripts that can be executed within the application.

Affected Systems and Versions

Product: ConnectWise Control (formerly ScreenConnect)
Version: 19.3.25270.7185

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the Appearance modifier, which, when executed, can lead to unauthorized actions or data theft.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-16512:

Immediate Steps to Take

Update ConnectWise Control to a patched version that addresses the XSS vulnerability.
Implement strict input validation to prevent script injection.
Educate users about the risks of executing scripts from untrusted sources.

Long-Term Security Practices

Regularly monitor and audit the application for security vulnerabilities.
Conduct security training for developers to enhance secure coding practices.

Patching and Updates

Apply security patches and updates provided by ConnectWise to mitigate the vulnerability and enhance overall system security.