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.

Starting with Festo Automation Suite (FAS) version 2.8.0.138, the suite is delivered only with a connector to Codesys, rather than including Codesys directly. Prior to this version, Codesys was bundled within the FAS installation. From version 2.8.0.138 onwards, customers are required to download and install Codesys independently.

This change impacts the handling of security vulnerabilities (CVEs) related to Codesys. Any Codesys-related security issues must now be addressed by the customer through their separate Codesys installation. The FAS itself includes only the connector component, which is maintained and updated within the suite.

Please ensure that Codesys is kept up to date independently to mitigate any potential security risks associated with the Codesys software.

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.

Schneider Electric is aware of multiple vulnerabilities disclosed on CODESYS runtime system V3 communication server. Many vendors, including Schneider Electric, embed CODESYS in their offers. If successfully exploited, these vulnerabilities could result in a denial of service or, in some cases, in remote code execution on PacDrive controllers, Modicon Controllers M241 / M251 / M262 / M258 / LMC058 / LMC078 / M218 , HMISCU, the Simulation Runtime SoftSPS from EcoStruxure Machine Expert and EcoStruxure Microgrid Operation products. Failure to apply the mitigations provided below may result in denial of service and/or arbitrary remote code execution.

Schneider Electric is aware of multiple vulnerabilities disclosed on CODESYS runtime system V3 communication server. Many vendors, including Schneider Electric, embed CODESYS in their offers. If successfully exploited, these vulnerabilities could result in a denial of service or, in some cases, in remote code execution on PacDrive controllers, Modicon Controllers M241 / M251 / M262 / M258 / LMC058 / LMC078 / M218 , HMISCU, the Simulation Runtime SoftSPS from EcoStruxure Machine Expert and EcoStruxure Microgrid Operation products. Failure to apply the mitigations provided below may result in denial of service and/or arbitrary remote code execution.

CODESYS Control V3 runtime systems are affected by several security vulnerabilities in the communication server implementations for the CODESYS protocol. These may be exploited by authenticated attackers.

The following vulnerabilities are published with reference to CODESYS Advisory 2023-05, CODESYS Advisory 2023-06 and CODESYS Advisory 2023-09

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in ABB AC-500 ausnutzen, um einen Denial of Service Angriff durchzuführen.