Schneider Electric Security Notification
NicheStack TCP/IP Vulnerabilities (INFRA:HALT) in Lexium ILE, ILA, ILS,and Communication Option Boards for Altivar and Lexium32 drives
05 August 2021 (09 May 2023)

Overview
Schneider Electric is aware of multiple vulnerabilities in HCC Embedded’s NicheStack TCP/IP
third party component, which is integrated into Schneider Electric’s Lexium ILE, ILA, ILS, Altivar
Profinet Communication Module (VW3A3627), (VW3A3616), and Altivar 61/71 Profinet Communication Card (VW3A3327) products.
Failure to apply the mitigations provided below may risk denial of service of the drives.
May 2023 Update: A remediation is available for Altivar 32/320 & Lexium 32 Ethernet TCP/IP
communication module (VW3A3616) (page 2).

Affected Products and Versions
ProductVersionLexium ILE ILA ILS communication drive

Firmware communication module versions prior toV01.111

Altivar 32/320/340/600/900/6000 Profinet
communication module (VW3A3627)

Firmware versions prior to V1.16IE01

Altivar 32/320 and Lexium 32 Ethernet
TCP/IP communication module(VW3A3616)

Firmware versions prior to V1.20IE01

Altivar 61/71 Profinet communication card
(VW3A3327)

All versions

Vulnerability Details
Five of the 14 vulnerabilities disclosed by researchers in the NicheStack TCP/IP component
impact Schneider Electric’s Lexium ILE, ILA, ILS, Altivar Profinet Communication Module(VW3A3627), Altivar and Lexium Ethernet TCP/IP Communication Module (VW3A3616), andAltivar Profinet - Communication Card (VW3A3327). Additional information about vulnerability
details can be found at https://us-cert.cisa.gov/ics/advisories/icsa-21-217-01.
•••

CVE-2021-31400
CVE-2021-31401
CVE-2020-35683

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Schneider Electric Security Notification••

CVE-2020-35684
CVE-2020-35685

Remediations
Affected Product &Version

Lexium ILE ILA ILS
Communication
Drive
Versions prior to
V01.111

Altivar32/320/340/600/900
Profinet
communication
module (VW3A3627)
Versions prior toV1.16IE01
Altivar 32/320 andLexium 32 Ethernet
TCP/IP
communication
module (VW3A3616)
Versions prior toV1.20IE01
Altivar 61/71 Profinet
communication card
(VW3A3327)
All versions

Remediation /Mitigation
V01.111 of Lexium ILE, ILA, ILS communication module includes afix for these vulnerabilities.
Reboot is needed.
Please contact your local Schneider Electric technical support for
more information on how to get the firmware and how to upgrade thecommunication firmware module.
V1.16IE01of Altivar 32/320/340/600/900 Profinet communication
module includes a fix for these vulnerabilities.

For product release prior to V1.16IE01, apply the mitigations detailed
in the Mitigations section and contact your local technical support for
more information.
V1.20IE01 of Altivar 32/320 and Lexium 32 Ethernet TCP/IP
communication module includes a fix for these vulnerabilities.

For product release prior to V1.20IE01, apply the mitigations detailed
in the Mitigations section and contact your local technical support formore information.
This is an End Of Commercialization offer that is replaced by theALTIVAR 900 & ALTIVAR 600 ranges.
To reduce risk of exploitation, apply the mitigations detailed in theMitigations section.

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. ContactSchneider 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:

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Schneider Electric Security Notification
Mitigations•••

Implement a firewall to restrict network access to the drives.
Configure the controller associated to the drives by disabling IP forwarding as describedin the online help of your controller.
Configure the controller with dedicated access control lists as described below.

More information to implement these mitigations can be found in the online help of thecontrollers at:https://olh.schneider-electric.com/Machine Expert/V2.0/LandingPages/en/index.html
To ensure you are informed of all updates, including details on affected products andremediation plans, subscribe to Schneider Electric’s security notification service here:
https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp

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 for thedevices that it is intended for.
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.

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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 AN
OVERVIEW 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 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 MAYRESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHTTO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETIONAbout 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 1.005 August 2021
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Original Release

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Schneider Electric Security Notification
Version 2.0
08 February 2022

Version 3.0
13 September 2022
Version 4.0
14 February 2023
Version 5.0
09 May 2023

Added Altivar Profinet Communication Module(VW3A3627), Lexium Ethernet TCP/IP
Communication Module (VW3A3616), and Altivar
Profinet - Communication Card (VW3A3327) to thelist of affected products.
A remediation is available for Lexium ILE, ILA, ILS
drives and the affected communication module
firmware version has been updated.
A remediation is available for Altivar
32/320/340/600/900 Profinet communication
module (VW3A3627) (page 2).
A remediation is available for Altivar 32/320 &Lexium 32 Ethernet TCP/IP communication
module (VW3A3616) (page 2).

signed by Product Security Office
Product Security Office Digitally
Date: 2023.05.08 12:39:14 -04'00'

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