CVE-2019-16517 : Vulnerability Insights and Analysis
Discover the security impact of CVE-2019-16517 in ConnectWise Control version 19.3.25270.7185 due to a CORS misconfiguration allowing unauthorized server API access.
A vulnerability has been found in ConnectWise Control (formerly ScreenConnect) version 19.3.25270.7185 due to a misconfiguration of Cross-Origin Resource Sharing (CORS), allowing unauthorized access to server APIs.
Understanding CVE-2019-16517
This CVE identifies a security flaw in ConnectWise Control that enables malicious JavaScript code to interact with server APIs without user consent.
What is CVE-2019-16517?
ConnectWise Control version 19.3.25270.7185 is susceptible to a CORS misconfiguration, permitting unauthorized domains to execute administrative tasks on the server.
The Impact of CVE-2019-16517
The vulnerability allows attackers to perform administrative actions on the server without user awareness, potentially leading to unauthorized access and data breaches.
Technical Details of CVE-2019-16517
ConnectWise Control's security issue is detailed below.
Vulnerability Description
The misconfiguration of CORS in ConnectWise Control version 19.3.25270.7185 enables JavaScript from any domain to interact with server APIs, posing a significant security risk.
Affected Systems and Versions
- Product: ConnectWise Control (formerly ScreenConnect)
- Version: 19.3.25270.7185
Exploitation Mechanism
Attackers can exploit the CORS misconfiguration to execute unauthorized administrative tasks on the server, compromising system integrity and user data.
Mitigation and Prevention
Protect your systems from CVE-2019-16517 with the following measures.
Immediate Steps to Take
- Update ConnectWise Control to a patched version that addresses the CORS misconfiguration.
- Implement network security measures to restrict unauthorized access to server APIs.
Long-Term Security Practices
- Regularly audit and update CORS configurations to prevent similar vulnerabilities.
- Educate users and administrators on the risks of CORS misconfigurations and best practices for secure API interactions.
Patching and Updates
- Stay informed about security updates and patches released by ConnectWise Control to address vulnerabilities like the one in CVE-2019-16517.