CVE-2020-7562 : Vulnerability Insights and Analysis
Learn about CVE-2020-7562, a CWE-125 vulnerability in Web Server on Modicon M340, Modicon Quantum, and Modicon Premium Legacy offers. Understand the impact, affected systems, exploitation, and mitigation steps.
A CWE-125 vulnerability exists in the Web Server on Modicon M340, Modicon Quantum, and Modicon Premium Legacy offers and their Communication Modules, potentially leading to a segmentation fault or buffer overflow.
Understanding CVE-2020-7562
This CVE involves an Out-of-Bounds Read vulnerability in specific Schneider Electric devices.
What is CVE-2020-7562?
The CVE-2020-7562 vulnerability is related to the Web Server on Modicon M340, Modicon Quantum, and Modicon Premium Legacy offers and their Communication Modules. It allows for a segmentation fault or buffer overflow when uploading a specially crafted file over FTP.
The Impact of CVE-2020-7562
The vulnerability could be exploited to cause a segmentation fault or buffer overflow, potentially leading to system crashes or unauthorized access to the affected devices.
Technical Details of CVE-2020-7562
This section provides more technical insights into the CVE.
Vulnerability Description
The CWE-125 vulnerability in the Web Server on Modicon M340, Modicon Quantum, and Modicon Premium Legacy offers and their Communication Modules allows for an Out-of-Bounds Read, posing risks of buffer overflow or segmentation fault.
Affected Systems and Versions
- Product: Web Server on Modicon M340, Modicon Quantum, and Modicon Premium Legacy offers and their Communication Modules
- Version: Web Server on Modicon M340, Modicon Quantum, and Modicon Premium Legacy offers and their Communication Modules
Exploitation Mechanism
The vulnerability can be exploited by uploading a specially crafted file on the controller over FTP, triggering the Out-of-Bounds Read condition.
Mitigation and Prevention
Protecting systems from CVE-2020-7562 is crucial for maintaining cybersecurity.
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 software and firmware on the affected devices.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Stay informed about security advisories and updates from Schneider Electric.
- Follow best practices for secure configuration and maintenance of the affected devices.