Schneider Electric SoMachine Basic

Risk Summary

Successful exploitation of this vulnerability may result in disclosure and retrieval of arbitrary data on the affected node via out-of-band (OOB) attack.

CVEs (1)

Remediations

• Schneider Electric has replaced SoMachine Basic with EcoStruxure Machine Expert - Basic. The following steps are recommended for mitigation of this issue:STEP 1: Update software and firmware
• On the engineering workstation, update to EcoStruxure Machine Expert - Basic v1.1 SP1 or above.
• On Modicon M100/M200/M221 Logic controllers, update to latest firmware version.
• STEP 2: Update projects in EcoStruxure Machine Expert - Basic
• Upgrade the functional level of the application to minimum Version 10.2
• Activate the application protection for both read and write in the project properties.
• STEP 3: Transfer applications.
• Transfer applications to Modicon M100/M200/M221 logic controllers. EcoStruxure Machine Expert - Basic will perform an integrity check when transferring the application and will display a warning pop-up to the user if the application has been altered during transfer.
• Please see Schneider Electric's publication SEVD-2018-142-01 for more information.
• Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
• Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
• Place all controllers in locked cabinets and never leave them in the “Program” mode.
• Never connect programming software to any network other than the network for the devices it is intended for.
• Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.
• Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.
• Minimize network exposure for all control system devices and systems and ensure they are not accessible from the Internet.
• When remote access is required, use secure methods, such as virtual private networks (VPNs). Recognize VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand VPNs are only as secure as the connected devices.
• For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.

Affected Vendors

Affected Products (1)

Affected Sectors

Critical Manufacturing; Dams; Defense Industrial Base; Energy; Food and Agriculture; Government Facilities; Nuclear Reactors, Materials, and Waste; Transportation Systems; Water and Wastewater Systems