CVE-2019-6806 Explained : Impact and Mitigation
Learn about CVE-2019-6806 affecting Modicon M580, M340, Quantum, and Premium. Discover the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability known as CWE-200: Information Exposure affects Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium, potentially exposing SNMP information when reading variables using Modbus.
Understanding CVE-2019-6806
This CVE involves multiple vulnerabilities in Schneider Electric's Modicon product range.
What is CVE-2019-6806?
The vulnerability in Modicon M580, M340, Quantum, and Premium can lead to the disclosure of SNMP information during variable reads via Modbus.
The Impact of CVE-2019-6806
The exposure of SNMP information can pose security risks and compromise the confidentiality of data stored in affected systems.
Technical Details of CVE-2019-6806
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows for the exposure of SNMP information during variable reads in Modicon M580, M340, Quantum, and 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 is exploited when reading variables from the controller using Modbus, potentially leading to the exposure of SNMP information.
Mitigation and Prevention
Protecting systems from CVE-2019-6806 is crucial for maintaining security.
Immediate Steps to Take
- Monitor vendor security advisories for patches and updates
- Implement network segmentation to limit exposure
- Disable unnecessary services to reduce attack surface
Long-Term Security Practices
- Conduct regular security assessments and audits
- Train personnel on secure coding practices and cybersecurity awareness
- Keep systems up to date with the latest security patches
- Employ intrusion detection and prevention systems
Patching and Updates
- Apply patches provided by Schneider Electric promptly
- Regularly check for firmware updates and security bulletins
- Follow best practices for secure configuration and network architecture