CVE-2023-37551
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk33th percentile - higher than 33% of all known CVEs
Summary
In multiple Codesys products in multiple versions, after successful authentication as a user, specially crafted network communication requests can utilize the CmpApp component to download files with any file extensions to the controller. Unlike regular file downloads via CmpFileTransfer, no filtering of certain file types is performed here.
Risk Assessment
As a result, the integrity of the CODESYS control runtime system may be compromised by the files loaded onto the controller, posing a serious security threat to the system.
Recommendation
It is recommended to implement appropriate filtering and monitoring mechanisms for network communication to prevent unauthorized file downloads to the controller.
Original NVD description (English source)
In multiple Codesys products in multiple versions, after successful authentication as a user, specially crafted network communication requests can utilize the CmpApp component to download files with any file extensions to the controller. In contrast to the regular file download via CmpFileTransfer, no filtering of certain file types is performed here. As a result, the integrity of the CODESYS control runtime system may be compromised by the files loaded onto the controller.