CVE-2022-0222 : Vulnerability Insights and Analysis
Learn about CVE-2022-0222, a high-severity CWE-269 vulnerability in Schneider Electric's Modicon M340 CPUs and X80 Ethernet Communication modules, impacting Ethernet communication. Find mitigation steps here.
A CWE-269: Improper Privilege Management vulnerability has been identified in Schneider Electric's Modicon M340 CPUs and Modicon M340 X80 Ethernet Communication modules. This vulnerability could lead to a denial of service for Ethernet communication when a specific request is sent over SNMP.
Understanding CVE-2022-0222
This section will provide insights into the nature and impact of CVE-2022-0222.
What is CVE-2022-0222?
The vulnerability relates to improper privilege management, potentially resulting in a denial of service for Ethernet communication on affected Schneider Electric products.
The Impact of CVE-2022-0222
The vulnerability poses a high risk, with a CVSS base score of 7.5, indicating a significant impact on availability.
Technical Details of CVE-2022-0222
In this section, we will delve into the specifics of the vulnerability.
Vulnerability Description
The vulnerability arises from improper privilege management, impacting the Ethernet communication of the affected Schneider Electric products.
Affected Systems and Versions
- Modicon M340 CPUs: BMXP34* versions prior to V3.40
- Modicon M340 X80 Ethernet Communication modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOR0200H RTU. Affected versions include BMXNOE* (all versions) and BMXNOR* versions prior to v1.7 IR24.
Exploitation Mechanism
The vulnerability can be exploited by sending a specific request over SNMP to trigger a denial of service affecting Ethernet communication.
Mitigation and Prevention
This section outlines steps to mitigate the risks associated with CVE-2022-0222.
Immediate Steps to Take
Organizations using the affected products should apply security patches provided by Schneider Electric promptly.
Long-Term Security Practices
Implement strict access controls, network segmentation, and regular security assessments to enhance overall security posture.
Patching and Updates
Stay informed about security advisories from Schneider Electric and apply relevant patches and updates as soon as they are released.