Schneider Electric Security Notification
EcoStruxure Machine SCADA Expert andPro-face BLUE Open Studio
13 September 2022

Overview
Schneider Electric is aware of multiple vulnerabilities in its EcoStruxure Machine SCADA Expert
and Pro-face BLUE Open Studio products.
EcoStruxure Machine SCADA Expert is a powerful software for developing HMI, SCADA, OEE
and Dashboard projects dedicated to Line Management & Lite Supervision applications to run inHarmony Industrial PC and GTU Open Box.
Pro-face BLUE Open Studio is a development and runtime software that incorporates all of thetools users need to create SCADA HMI applications, dashboards and OEE interfaces.
Failure to apply the mitigations provided below may risk a modification of project files which
could result in arbitrary code execution, information disclosure, or denial of service.

Affected Products and Versions
ProductVersion

EcoStruxure Machine SCADA Expert
2020 Service Pack 2

V20.0.2 or priorBLUE Open Studio2020 Service Pack 2

V20.0.2 or priorVulnerability information
CVSS v3.1 Base Score 7.8 | High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-502: Deserialization of Untrusted Data vulnerability exists that can lead to arbitrary code
execution, information disclosure, or denial of services when the project file is loaded.
Successful exploitation of the vulnerability requires user interaction and write access to HMI
project file.

13-Sep-22

Document Reference Number – SEVD-2022-256-01

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Schneider Electric Security Notification
Remediation
Affected Product &Version
EcoStruxure
Machine SCADA
Expert2020 Service Pack 2
V20.0.2 or priorBLUE Open Studio2020 Service Pack 2
V20.0.2 or prior

Remediation
Version 2020 Service Pack 2 Hot Fix 2020.2.00.40 of EcoStruxure
Machine SCADA Expert includes a fix for this vulnerability.
Please contact your Schneider Electric Customer Care Center toobtain the Hot Fix.
For additional detail please refer to the supplied help file in Hot Fix
2020.2.00.40.
Version 2020 Service Pack 2 Hot Fix 2020.2.00.40 of BLUE Open
Studio includes a fix for this vulnerability.
Please contact your Pro-face Customer Care Center to obtain theHot Fix.
For additional detail please refer to the supplied help file in Hot Fix
2020.2.00.40.

Customers should use appropriate patching methodologies when applying these patches totheir systems. We strongly recommend the use of back-ups and evaluating the impact of thesepatches in a Test and Development environment or on an offline infrastructure. Contact
Schneider Electric’s Customer Care Center if you need assistance removing a patch.
If customers choose not to apply the remediation provided above, they should immediately
apply the following mitigations to reduce the risk of exploit:••

Install physical controls so no unauthorized personnel can access your HMI Device,
Laptop, and engineering workstation.
Harden your network and engineering workstation following the best cybersecurity
practices (antivirus, updated operating systems, strong password policies, application
allow list software, etc.) using the Recommended Cybersecurity Best Practices
document.

In addition to applying the remediations provided above, the following general precautions
should be taken throughout the lifetime of EcoStruxure Machine SCADA Expert projects andBLUE Open Studio projects:••

Access Control Lists should be applied to all folders where users will save and load
project files.
Enforce a trusted chain-of-custody on project files, maintained during creation,
modification, distribution, and use.

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Document Reference Number – SEVD-2022-256-01

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Schneider Electric Security Notification•

Train users to always verify the source of a project is trusted before opening/executingit.

General Security Recommendations
We strongly recommend the following industry cybersecurity best practices.
••
•
•
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Locate control and safety system networks and remote devices behind firewalls andisolate 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 intended forthat device.
Scan all methods of mobile data exchange with the isolated network such as CDs, USBdrives, 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 theintended network to connect to the safety or control networks without proper sanitation.
Minimize network exposure for all control system devices and systems and ensure thatthey are not accessible from the Internet.
When remote access is required, use secure methods, such as Virtual Private Networks(VPNs). Recognize that VPNs may have vulnerabilities and should be updated to themost current version available. Also, understand that VPNs are only as secure as theconnected devices.

For more information refer to the Schneider Electric Recommended Cybersecurity BestPractices document.

For More Information
This document provides an overview of the identified vulnerability or vulnerabilities and actions
required to mitigate. For more details and assistance on how to protect your installation, contact
your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity
Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will befully aware of this situation and can support you through the process.
For further information related to cybersecurity in Schneider Electric’s products, visit thecompany’s cybersecurity support portal page:https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp
LEGAL DISCLAIMER
THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALSLINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE ANOVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS,13-Sep-22Document Reference Number – SEVD-2022-256-01Page 3 of 4

Schneider Electric Security Notification
REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN“AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRICDISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED,INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THEIDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANYDAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDINGDIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIALDAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCHDAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELYLIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY
RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHTTO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION
About Schneider Electric
Schneider’s purpose is to empower all to make the most of our energy and resources, bridging progress andsustainability for all. We call this Life Is On.
Our mission is to be your digital partner for Sustainability and Efficiency.
We drive digital transformation by integrating world-leading process and energy technologies, end-point to cloudconnecting products, controls, software and services, across the entire lifecycle, enabling integrated company
management, for homes, buildings, data centers, infrastructure and industries.
We are the most local of global companies. We are advocates of open standards and partnership ecosystems thatare passionate about our shared Meaningful Purpose, Inclusive and Empowered values.

www.se.com

Revision Control:
Version 1.0
13 September 2022

Original Release

Product Security Office

13-Sep-22

Digitally signed by Product Security Office
Date: 2022.09.09 15:57:22 -04'00'

Document Reference Number – SEVD-2022-256-01

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