CVE-2020-7488 : Security Advisory and Response

A CWE-319 vulnerability in EcoStruxure Machine Expert, SoMachine, and Modicon Logic Controllers could lead to the leakage of sensitive information.

Understanding CVE-2020-7488

What is CVE-2020-7488?

This CVE identifies a CWE-319 vulnerability that allows for the cleartext transmission of sensitive information between the software and Modicon M218, M241, M251, and M258 controllers.

The Impact of CVE-2020-7488

The vulnerability could result in the exposure of confidential data transmitted between the affected software and controllers, posing a risk to data integrity and confidentiality.

Technical Details of CVE-2020-7488

Vulnerability Description

The vulnerability involves the cleartext transmission of sensitive information, potentially leading to data leakage.

Affected Systems and Versions

EcoStruxure Machine Expert (all versions)
SoMachine, SoMachine Motion (all versions)
Modicon M218 Logic Controller (all versions)
Modicon M241 Logic Controller (all versions)
Modicon M251 Logic Controller (all versions)
Modicon M258 Logic Controller (all versions)

Exploitation Mechanism

The vulnerability could be exploited by malicious actors intercepting and deciphering the unencrypted data transmitted between the software and the affected controllers.

Mitigation and Prevention

Immediate Steps to Take

Implement encryption mechanisms to secure data transmission.
Monitor network traffic for any unauthorized access or data interception.
Apply vendor-supplied patches or updates promptly.

Long-Term Security Practices

Regularly update and patch software and firmware to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Ensure that all affected systems are updated with the latest patches provided by the vendor to mitigate the vulnerability effectively.