CVE-2023-37554 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2023-37554, a vulnerability affecting multiple versions of multiple CODESYS products.

Understanding CVE-2023-37554

CVE-2023-37554 is related to improper input validation in the CmpAppBP component of CODESYS products, potentially leading to a denial-of-service condition.

What is CVE-2023-37554?

In multiple versions of CODESYS products, crafted network requests after successful authentication can trigger the vulnerability, allowing an attacker to cause the component to read from an invalid address.

The Impact of CVE-2023-37554

The vulnerability can result in a denial-of-service condition, affecting the availability of the affected systems. It is distinct from other related CVEs.

Technical Details of CVE-2023-37554

The vulnerability is scored a CVSS base score of 6.5, indicating a medium severity level with a high availability impact.

Vulnerability Description

Crafted network requests with inconsistent content can lead to reading from an invalid address within the CmpAppBP component.

Affected Systems and Versions

Various versions of multiple CODESYS products are affected, such as Control for BeagleBone, Raspberry Pi, PLCnext, and more.

Exploitation Mechanism

Successful authentication is required for an attacker to exploit the vulnerability, making it crucial to monitor network traffic.

Mitigation and Prevention

It's essential to take immediate steps to safeguard systems and implement long-term security practices alongside patching and updates.

Immediate Steps to Take

Monitor network traffic, restrict access, and apply vendor-supplied patches promptly to mitigate the risk.

Long-Term Security Practices

Regularly update software, conduct security assessments, and educate users on safe practices to enhance overall cybersecurity.

Patching and Updates

Vendor patches addressing the vulnerability should be applied as soon as they are released to protect systems.