CVE-2023-37553 : Security Advisory and Response

A detailed analysis of CODESYS Improper Input Validation vulnerability affecting multiple products. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2023-37553

This section provides an overview of the CVE-2023-37553 vulnerability in CODESYS products.

What is CVE-2023-37553?

Multiple versions of CODESYS products are affected by an Improper Input Validation vulnerability. Crafted network communication requests can lead to a denial-of-service condition.

The Impact of CVE-2023-37553

Successful authentication as a user can trigger specific network communication requests, causing the CmpAppBP component to read from an invalid address, potentially resulting in a denial-of-service situation.

Technical Details of CVE-2023-37553

Explore the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

Crafted network communication requests with inconsistent content allow the CmpAppBP component to read from an invalid address, leading to a denial-of-service scenario.

Affected Systems and Versions

Multiple CODESYS products are affected, including Control Systems for various platforms, with versions less than V4.10.0.0 or V3.5.19.20.

Exploitation Mechanism

After successful user authentication, specific crafted network requests can exploit the vulnerability, triggering the improper input validation issue.

Mitigation and Prevention

Discover immediate steps and long-term security practices to mitigate the CVE-2023-37553 vulnerability.

Immediate Steps to Take

Implementing patches, restricting network access, and monitoring for suspicious activities can help prevent exploitation of the vulnerability.

Long-Term Security Practices

Regularly updating software, conducting security assessments, and educating users on safe practices can enhance overall system security.

Patching and Updates

Installing the latest patches released by CODESYS, maintaining system security configurations, and staying informed about security advisories are crucial steps in preventing vulnerabilities.