CVE-2023-37556 Explained : Impact and Mitigation
Gain insights into CVE-2023-37556, a vulnerability in CODESYS products leading to denial-of-service attacks. Learn about affected systems, exploitation, and mitigation strategies.
This CVE-2023-37556 article provides insights into the CODESYS vulnerability related to improper input validation in the CmpAppBP component.
Understanding CVE-2023-37556
CVE-2023-37556 highlights a security issue in multiple versions of various CODESYS products, potentially leading to denial-of-service attacks.
What is CVE-2023-37556?
In multiple versions of CODESYS products, specific network communication requests post-authentication can trigger the CmpAppBP component to read data from an invalid address, causing a denial-of-service risk.
The Impact of CVE-2023-37556
This vulnerability can be exploited by malicious actors to disrupt the affected systems' availability, potentially leading to service downtime and operational disruptions.
Technical Details of CVE-2023-37556
This section delves into the specific aspects of the vulnerability.
Vulnerability Description
Crafted network communication requests with inconsistent content can lead to the CmpAppBP component reading data from an invalid address, resulting in a denial-of-service condition.
Affected Systems and Versions
CODESYS Control for various platforms such as BeagleBone, Raspberry Pi, and PLCnext are affected, specifically versions less than V4.10.0.0.
Exploitation Mechanism
Malicious users can exploit this vulnerability post-authentication by sending crafted network requests, potentially causing a denial-of-service situation.
Mitigation and Prevention
To protect systems from CVE-2023-37556, immediate steps and long-term security practices are crucial.
Immediate Steps to Take
Ensure that systems running affected versions of CODESYS products are updated to versions equal to or later than V4.10.0.0.
Long-Term Security Practices
Regularly monitor for security updates and patches provided by CODESYS to address known vulnerabilities and enhance system security.
Patching and Updates
Apply patches and updates provided by the vendor promptly to mitigate the risk of exploitation and enhance the overall system security.