Schneider Electric Security Notification
EcoStruxureTM Foxboro DCS Core Control Services
9 July 2024

Overview
Schneider Electric is aware of multiple vulnerabilities in its EcoStruxureTM Foxboro DCS product.
The EcoStruxureTM Foxboro DCS product is an innovative family of fault-tolerant, highly
available control components, which consolidates critical information and elevates staff
capabilities to ensure flawless, continuous plant operation.
Failure to apply the remediations provided below may risk local attacks from an authenticateduser on the workstation running Foxboro DCS Core Control Services, which could result in lossof system functionality or unauthorized access to system functions.

Affected Products and Versions
ProductVersion

EcoStruxureTM Foxboro DCS Core Control Services

Versions 9.8 and priorVulnerability Details
CVE ID: CVE-2024-5679
CVSS v3.1 Base Score 7.1 | High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE-787: Out-of-Bounds Write vulnerability exists that could cause local denial-of-service, orkernel memory leak when a malicious actor with local user access crafts a script/program using
an IOCTL call in the Foxboro.sys driver.
CVE ID: CVE-2024-5680
CVSS v3.1 Base Score 7.1 | High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CWE-129: Improper Validation of Array Index vulnerability exists that could cause local denialof-service when a malicious actor with local user access crafts a script/program using an IOCTL
call in the Foxboro.sys driver.
CVE ID: CVE-2024-5681
CVSS v3.1 Base Score 7.8 | High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-20: Improper Input Validation vulnerability exists that could cause local denial-of-service,privilege escalation, and potentially kernel execution when a malicious actor with local user
access crafts a script/program using an IOCTL call in the Foxboro.sys driver.

09-Jul-24

Document Reference Number – SEVD-2024-191-02

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Schneider Electric Security Notification
Note regarding vulnerability details: The severity of vulnerabilities was calculated using theCVSS Base metrics in version 3.1 (CVSS v3.1) without incorporating the Temporal andEnvironmental metrics. Schneider Electric recommends that customers score the CVSS
Environmental metrics, which are specific to end-user organizations, and consider factors suchas the presence of mitigations in that environment. Environmental metrics may refine therelative severity posed by the vulnerabilities described in this document within a customer’s
environment.

Remediation
Affected Product &Version

EcoStruxureTM
Foxboro DCS Core
Control Services
v9.8 and prior

Remediation
Patch HF97872598 available for v9.5 to v9.8 of EcoStruxureTM
Foxboro DCS Core Control Services includes a fix for thesevulnerabilities.
Please contact your local Service Representative or Schneider
Electric Process Automation Global Customer Support Center for
information on how to download and install this fix:
Process Automation | Global Customer Support (se.com)
Reboot is needed.

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:

Mitigations
Affected Product &Version

EcoStruxureTM
Foxboro DCS Core
Control Services
v9.8 and prior

09-Jul-24

Mitigations
As the identified vulnerabilities require local user account access,EcoStruxureTM Foxboro DCS workstations should be installed in asecure location to prevent physical access by unauthorized
personnel, and appropriate password protections put in place toprevent remote access by unauthorized personnel.
To ensure you are informed of all updates, including details on
affected products and remediation plans, subscribe to Schneider
Electric’s security notification service here:
https://www.se.com/en/work/support/cybersecurity/securitynotifications.jsp
Document Reference Number – SEVD-2024-191-02

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Schneider Electric Security Notification
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 Best
Practices document.

Acknowledgements
Schneider Electric recognizes the following researcher for identifying and helping to coordinate
a response to these vulnerabilities:
CVE
CVE-2024-5679
CVE-2024-5680
CVE-2024-5681

ResearcherVladimir Tokarev, Microsoft Defender for IoT

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.

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Document Reference Number – SEVD-2024-191-02

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Schneider Electric Security Notification
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 DISCRETION.
About Schneider Electric
Schneider’s purpose is to create Impact by empowering all to make the most of our energy and resources,
bridging progress and sustainability for all. We call this Life Is On.
Our mission is to be the trusted partner in Sustainability and Efficiency.
We are a global industrial technology leader bringing world-leading expertise in electrification, automation anddigitization to smart industries, resilient infrastructure, future-proof data centers, intelligent buildings, and intuitive
homes. Anchored by our deep domain expertise, we provide integrated end-to-end lifecycle AI enabled Industrial IoT
solutions with connected products, automation, software and services, delivering digital twins to enable profitable
growth for our customers.
We are a people company with an ecosystem of 150,000 colleagues and more than a million partners operating inover 100 countries to ensure proximity to our customers and stakeholders. We embrace diversity and inclusion in
everything we do, guided by our meaningful purpose of a sustainable future for all.
www.se.com

Revision Control:
Version 1.0.0
09 July 2024

CPCERT
09-Jul-24

Original Release
Digitally signed by CPCERT
Date: 2024.07.08 13:06:46 -04'00'
Document Reference Number – SEVD-2024-191-02

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