CVE-2019-6855 : What You Need to Know
Learn about CVE-2019-6855 affecting EcoStruxure Control Expert, Unity Pro, Modicon M340, and Modicon M580. Discover the impact, affected systems, and mitigation steps.
A vulnerability in EcoStruxure Control Expert, Unity Pro, Modicon M340, and Modicon M580 could allow for incorrect authorization, potentially leading to the bypass of the authentication process.
Understanding CVE-2019-6855
This CVE involves an Incorrect Authorization vulnerability affecting various Schneider Electric products.
What is CVE-2019-6855?
The vulnerability allows for the bypass of the authentication process between EcoStruxure Control Expert and Modicon M340/M580 controllers.
The Impact of CVE-2019-6855
The vulnerability could result in unauthorized access to critical systems, compromising the security and integrity of the affected devices.
Technical Details of CVE-2019-6855
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability lies in the authentication process of EcoStruxure Control Expert, Unity Pro, Modicon M340, and Modicon M580, potentially enabling unauthorized access.
Affected Systems and Versions
- EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix)
- Unity Pro (all versions)
- Modicon M340 (all versions prior to V3.20)
- Modicon M580 (all versions prior to V3.10)
Exploitation Mechanism
The vulnerability could be exploited by malicious actors to bypass the authentication mechanism and gain unauthorized access to the affected systems.
Mitigation and Prevention
Protecting systems from CVE-2019-6855 requires immediate action and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by Schneider Electric promptly.
- Implement network segmentation to limit access to critical systems.
- Monitor and log authentication attempts for unusual activity.
Long-Term Security Practices
- Conduct regular security assessments and audits of the affected systems.
- Train employees on cybersecurity best practices to prevent unauthorized access.
Patching and Updates
Regularly check for security updates and patches from Schneider Electric to address the vulnerability effectively.