CVE-2021-22785 : What You Need to Know
Discover the impact and mitigation strategies for CVE-2021-22785, an information exposure vulnerability affecting Modicon devices. Learn how to secure your systems against unauthorized data access.
A CWE-200: Information Exposure vulnerability exists in Modicon devices that could lead to the leakage of sensitive information when an attacker sends an HTTP request to the web server. Learn more about the impact, technical details, and mitigation strategies related to this CVE.
Understanding CVE-2021-22785
This section delves into the details of the information exposure vulnerability present in Modicon devices.
What is CVE-2021-22785?
CVE-2021-22785 is a vulnerability that allows attackers to access sensitive files in the web root directory of Modicon devices.
The Impact of CVE-2021-22785
The vulnerability could result in the exposure of critical information stored on the affected devices, posing a significant risk to data confidentiality.
Technical Details of CVE-2021-22785
Explore the specific technical aspects of CVE-2021-22785 in this section.
Vulnerability Description
The vulnerability enables attackers to obtain sensitive information by sending a crafted HTTP request to the vulnerable device's web server.
Affected Systems and Versions
Modicon M340 CPUs, Modicon M340 X80 Ethernet Communication Modules, Modicon Premium Processors, Modicon Quantum Processors, and Modicon Premium Communication Modules are among the impacted systems and versions.
Exploitation Mechanism
Attackers exploit this vulnerability by sending unauthorized HTTP requests, leading to the exposure of critical data stored on the affected devices.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2021-22785 and secure Modicon devices.
Immediate Steps to Take
Immediately apply security patches released by the vendor to address the information exposure vulnerability and prevent unauthorized access to sensitive data.
Long-Term Security Practices
Implement robust cybersecurity measures, such as network segmentation, access control, and regular security assessments, to enhance the overall security posture of the affected devices.
Patching and Updates
Regularly monitor and apply security updates provided by Schneider Electric to safeguard Modicon devices from known vulnerabilities and ensure data protection.