CVE-2022-2789 : Exploit Details and Defense Strategies

A detailed overview of CVE-2022-2789 focusing on Emerson Electric's Proficy Machine Edition vulnerability to CWE-345 Insufficient Verification of Data Authenticity.

Understanding CVE-2022-2789

This section will cover the vulnerability, its impact, affected systems, and mitigation steps.

What is CVE-2022-2789?

Emerson Electric's Proficy Machine Edition Version 9.00 and prior is vulnerable to CWE-345 Insufficient Verification of Data Authenticity. This vulnerability can lead to the display of logic different from the compiled logic.

The Impact of CVE-2022-2789

The impact of this vulnerability is rated as medium severity with a CVSS base score of 4.7. It requires user interaction and has a high attack complexity and integrity impact.

Technical Details of CVE-2022-2789

In this section, we will delve into the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Proficy Machine Edition allows for insufficient verification of data authenticity, potentially leading to the display of incorrect logic.

Affected Systems and Versions

Proficy Machine Edition versions equal to or less than 9.00 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability requires local access and user interaction to exploit, with a high attack complexity.

Mitigation and Prevention

This part will focus on immediate steps to take, long-term security practices, and patching procedures.

Immediate Steps to Take

It is recommended to apply security patches provided by Emerson Electric promptly. Additionally, restrict access to vulnerable systems.

Long-Term Security Practices

Implementing network segmentation, regular security assessments, and employee training on cybersecurity best practices are essential for long-term security.

Patching and Updates

Regularly check for security updates from Emerson Electric and apply them as soon as they are available to ensure system protection.