Schneider Electric Security Notification
IGSS (Interactive Graphical SCADA System)
14 December 2021

Overview
Schneider Electric is aware of multiple vulnerabilities in its Data Collector module for the IGSS
(Interactive Graphical SCADA System) product.
The IGSS product is a state-of-the art SCADA system used for monitoring and controllingindustrial processes. IGSS communicates with all major industry standard PLC drivers.
Failure to apply the remediations provided below may risk loss of data or denial of service,
which in worst case could result in problems controlling the SCADA System from the machinerunning IGSS in production.

Affected Product and Versions
IGSS Data Collector (dc.exe) V15.0.0.21320 and priorVulnerability Details
CVE ID: CVE-2021-22823
CVSS v3.1 Base Score 6.5 | Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
A CWE-306: Missing Authentication for Critical Function vulnerability exists that could cause
deletion of arbitrary files in the context of the user running IGSS due to lack of validation ofnetwork messages.
CVE ID: CVE-2021-22824
CVSS v3.1 Base Score 5.9 | Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in
denial of service, due to missing length check on user-supplied data from a constructedmessage received on the network.

Remediation
Version 15.0.0.21321 of the IGSS DC module: dc.exe includes fixes for these vulnerabilities andis available for download through IGSS Master > Update IGSS Software or here:
https://igss.schneider-electric.com/igss/igssupdates/v150/IGSSUPDATE.ZIP
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.
14-Dec-21

Document Reference Number – SEVD-2021-348-01

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Schneider Electric Security Notification
If customers choose not to apply the remediation provided above, they should immediately
apply the following mitigations to reduce the risk of exploit:••

Only accept incoming connections from machines, which name have been added as aStation in the IGSS System Configuration module by setting the registry key called“MatchWinName” to 1 under: “HKEY_CURRENT_USER\SOFTWARE\Schneider
Electric\IGSS32\V15.00.00\DC_HKLM\”.
Follow the general security recommendation below and verify that devices are isolated
on a private network and that firewalls are configured with strict boundaries for devices
that require remote access.

General Security Recommendations
We strongly recommend the following industry cybersecurity best practices.
••••••••

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, 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 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 Best
Practices document.

Acknowledgement
Schneider Electric recognizes the following researcher for identifying and helping to coordinate
a response to these vulnerabilities:
CVE
CVE-2021-22823,
CVE-2021-22824
14-Dec-21

Researcher
TenableDocument Reference Number – SEVD-2021-348-01

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Schneider Electric Security Notification
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,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 SPECIAL
DAMAGES, 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 MAYRESULT 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
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We provide energy and automation digital solutions for efficiency and sustainability. We combine world-leading energy
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Revision Control:
Version 1.0
14 December 2021

Original Release

Product Security Office
14-Dec-21

Digitally signed by Product Security Office
Date: 2021.12.10 18:57:26 -05'00'

Document Reference Number – SEVD-2021-348-01

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