CVE-2019-6852 : Vulnerability Insights and Analysis
Learn about CVE-2019-6852, an Information Exposure vulnerability in Modicon Controllers, exposing FTP hardcoded credentials on insecure networks. Find mitigation steps and preventive measures.
A vulnerability in Modicon Controllers could lead to the exposure of FTP hardcoded credentials when the controller's Web server is used on an insecure network.
Understanding CVE-2019-6852
This CVE involves an Information Exposure vulnerability in Modicon Controllers, affecting various components.
What is CVE-2019-6852?
The vulnerability exposes FTP hardcoded credentials when the controller's Web server is accessed on an insecure network. Affected devices include M340 CPUs, communication modules, Premium CPUs, Premium communication modules, Quantum CPUs, and Quantum communication modules.
The Impact of CVE-2019-6852
The exposure of FTP hardcoded credentials can lead to unauthorized access to sensitive information and potential security breaches.
Technical Details of CVE-2019-6852
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability, categorized as CWE-200: Information Exposure, allows unauthorized disclosure of FTP credentials when using the controller's Web server on an insecure network.
Affected Systems and Versions
- Modicon Controllers (M340 CPUs)
- M340 communication modules
- Premium CPUs
- Premium communication modules
- Quantum CPUs
- Quantum communication modules (specific versions detailed in the security notification)
Exploitation Mechanism
The vulnerability is exploited by accessing the controller's Web server on an insecure network, leading to the exposure of FTP hardcoded credentials.
Mitigation and Prevention
Protecting systems from CVE-2019-6852 is crucial to prevent unauthorized access and data breaches.
Immediate Steps to Take
- Apply security patches provided by Schneider Electric.
- Restrict access to the controller's Web server.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all system components.
- Implement network segmentation to isolate critical devices.
- Conduct security training for personnel to enhance awareness.
Patching and Updates
Ensure timely installation of security patches released by Schneider Electric to address the vulnerability.