CVE-2023-37558 : Security Advisory and Response

This CVE-2023-37558 article provides a detailed overview of the vulnerability found in multiple CODESYS products.

Understanding CVE-2023-37558

This section will cover what CVE-2023-37558 is, its impact, technical details, and mitigation strategies.

What is CVE-2023-37558?

The CVE-2023-37558 vulnerability occurs in multiple CODESYS products due to improper validation of consistency within input. Crafted network communication requests can trigger the CmpAppForce component to read from an invalid address, potentially leading to a denial-of-service attack.

The Impact of CVE-2023-37558

The vulnerability's impact is rated with a base score of 6.5, categorizing it as medium severity. With a low attack complexity and network-based attack vector, successful exploitation can result in a denial-of-service condition, affecting the availability of the affected systems.

Technical Details of CVE-2023-37558

This section will delve into the specific technical aspects of the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

After successful authentication, crafted network communication requests with inconsistent content can cause the CmpAppForce component to read from an invalid address, potentially leading to a denial-of-service condition.

Affected Systems and Versions

Multiple CODESYS products, including CODESYS Control for BeagleBone, Raspberry Pi, Linux, and others, are affected by this vulnerability. Versions prior to V4.10.0.0 are vulnerable.

Exploitation Mechanism

The vulnerability can be exploited through specific crafted network communication requests with inconsistent content, triggering the CmpAppForce component to read internally from an invalid address.

Mitigation and Prevention

This section will outline the immediate steps to take and long-term security practices to mitigate the CVE-2023-37558 vulnerability.

Immediate Steps to Take

It is recommended to apply the latest security patches provided by CODESYS to address the vulnerability. Additionally, network segmentation and access control measures can help limit the exposure of vulnerable systems.

Long-Term Security Practices

Implementing secure coding practices, regular security assessments, and staying informed about security updates from vendors can enhance the long-term security posture of systems.

Patching and Updates

Ensure that all affected CODESYS products are updated to versions V4.10.0.0 and above to mitigate the vulnerability effectively.