CVE-2019-6807 : Vulnerability Insights and Analysis
Learn about CVE-2019-6807 affecting Modicon M580, M340, Quantum, and Premium. Discover the impact, affected systems, exploitation, and mitigation steps to secure your industrial control systems.
The Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium are affected by a vulnerability known as CWE-248, potentially leading to denial of service attacks when sensitive application variables are written to the controller via Modbus.
Understanding CVE-2019-6807
This CVE involves multiple vulnerabilities in various Schneider Electric products.
What is CVE-2019-6807?
This CVE identifies a CWE-248: Uncaught Exception vulnerability present in all versions of Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium. The vulnerability can trigger denial of service incidents by writing sensitive application variables to the controller over Modbus.
The Impact of CVE-2019-6807
The vulnerability could result in uncaught exceptions and potential denial of service attacks if sensitive application variables are improperly written to the controller via Modbus communication.
Technical Details of CVE-2019-6807
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability is classified as CWE-248: Uncaught Exception, affecting all versions of Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium.
Affected Systems and Versions
- Products: Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium
- Versions: Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium
Exploitation Mechanism
The vulnerability can be exploited by writing sensitive application variables to the controller through Modbus, potentially leading to denial of service.
Mitigation and Prevention
Protecting systems from CVE-2019-6807 is crucial to maintaining security.
Immediate Steps to Take
- Apply security patches provided by Schneider Electric promptly.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all industrial control systems.
- Conduct security assessments and audits to identify vulnerabilities.
- Educate personnel on cybersecurity best practices.
Patching and Updates
- Stay informed about security advisories from Schneider Electric.
- Install recommended security updates and patches to mitigate the vulnerability effectively.