CVE-2022-37300 : What You Need to Know
Learn about CVE-2022-37300, a critical CWE-640 vulnerability in Schneider Electric products, posing unauthorized access risks over Modbus communication. Find mitigation steps here.
A weak password recovery mechanism vulnerability (CWE-640) has been identified in Schneider Electric products, including EcoStruxure Control Expert, EcoStruxure Process Expert, Modicon M340 CPU, and Modicon M580 CPU. This vulnerability could lead to unauthorized access in read and write mode when communicating over Modbus.
Understanding CVE-2022-37300
This section will provide insights into the nature and impact of the CWE-640 vulnerability.
What is CVE-2022-37300?
The vulnerability (CWE-640) involves a weak password recovery mechanism that could enable unauthorized access to the affected Schneider Electric products over Modbus communication.
The Impact of CVE-2022-37300
The vulnerability poses a critical threat with a CVSS base score of 9.8, indicating high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2022-37300
In this section, we will delve into the technical aspects of the CVE-2022-37300 vulnerability.
Vulnerability Description
The weak password recovery mechanism in the affected Schneider Electric products allows unauthorized users to gain read and write access to the controller when communicating over Modbus.
Affected Systems and Versions
The vulnerable products include EcoStruxure Control Expert (<=15.0 SP1), EcoStruxure Process Expert (<=2021), Modicon M340 CPU (<=3.40), and Modicon M580 CPU (<=3.20 for BMEP and BMEH).
Exploitation Mechanism
The vulnerability can be exploited by malicious actors to bypass authentication measures and gain unauthorized control over the affected systems.
Mitigation and Prevention
This section covers the necessary steps to mitigate the risks associated with CVE-2022-37300.
Immediate Steps to Take
Users are advised to apply security patches provided by Schneider Electric to address the vulnerability and enhance system security.
Long-Term Security Practices
Implementing strong password policies, network segmentation, and access control measures can help prevent unauthorized access to industrial control systems.
Patching and Updates
Regularly updating firmware and software patches from Schneider Electric is crucial to ensure system protection against known vulnerabilities.