CVE-2022-47391 Explained : Impact and Mitigation

This CVE affects multiple products of CODESYS due to an improper input validation vulnerability, which could be exploited by a remote attacker to cause a denial of service. Below are the details:

Understanding CVE-2022-47391

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2022-47391?

The vulnerability in multiple versions of CODESYS products allows an unauthorized remote attacker to exploit improper input validation, leading to a denial of service.

The Impact of CVE-2022-47391

The vulnerability can result in an attacker reading from invalid addresses, causing a denial of service.

Technical Details of CVE-2022-47391

This section covers the technical aspects of the CVE.

Vulnerability Description

An improper input validation vulnerability allows remote attackers to read from invalid addresses, potentially resulting in a denial of service.

Affected Systems and Versions

CODESYS Control RTE, CODESYS Control Win, CODESYS Safety SIL2, and various other products are affected, with versions less than V3.5.19.0 at risk.

Exploitation Mechanism

Attackers exploit the improper input validation vulnerability remotely, without the need for any privileges.

Mitigation and Prevention

Learn how to protect your systems from CVE-2022-47391.

Immediate Steps to Take

Update affected products to versions V3.5.19.0 or later to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor for security updates and ensure all software is up to date to prevent potential attacks.

Patching and Updates

Stay informed about security patches released by CODESYS and apply them promptly to secure your systems.