CVE-2022-45789
criticalpriority · track · 40OT risk · elevatedEPSS 0.015 · 73 %ileEURUUSEPSS · scored 2026-10-27
A CWE-294: Authentication Bypass by Capture-replay vulnerability exists that could cause execution of unauthorized Modbus functions on the controller when hijacking an authenticated Modbus session. Affected Products: EcoStruxure Control Expert (All Versions), EcoStruxure Process Expert (All Versions), Modicon M340 CPU - part numbers BMXP34* (All Versions), Modicon M580 CPU - part numbers BMEP* and BMEH* (All Versions), Modicon M580 CPU Safety - part numbers BMEP58*S and BMEH58*S (All Versions)
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedEcoStruxure™ Control Expertcisa_csaf_ot
EcoStruxure™ Control Expert V16.2 HF003 includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/product-range/548-ecostruxure-control-expert-unity-pro/#software-and-firmware
https://www.se.com/ww/en/product-range/548-ecostruxure-control-expert-unity-pro/#software-and-firmware - FixedModicon M340 Firmware versions prior to SV3.70 installed on Modicon M340 CPU (part numbers BMXP34*)cisa_csaf_ot
Version 3.70 of Modicon M340 includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/product-range/1468-modicon-m340/#software-and-firmware
https://www.se.com/ww/en/product-range/1468-modicon-m340/#software-and-firmware - FixedModicon M580 CPUcisa_csaf_ot
Firmware SV4.20 includes a fix for this vulnerability and is available for download here:https://www.se.com/ww/en/product-range/62098-modicon-m580-epac/#software-and-firmware
https://www.se.com/ww/en/product-range/62098-modicon-m580-epac/#software-and-firmware - FixedModicon M580 CPU Safetycisa_csaf_ot
Firmware SV4.21 includes a fix for this vulnerability and is available for download here:https://www.se.com/ww/en/product-range/62098-modicon-m580-pac-controller/#software-and-firmware Important: customer needs to use the version of EcoStruxure™ Control Expert v16.0 HF001 minimum to connect with the latest version of M580 CPU Safety. The software is available for download here: https://www.se.com/ww/en/product-range/548-ecostruxure-control-expert-unity-pro/#software-and-firmware
https://www.se.com/ww/en/product-range/548-ecostruxure-control-expert-unity-pro/#software-and-firmware - FixedModicon Momentum Unity M1E Processor Firmware Versions prior to SV2.90 installed on Modicon Momentum Unity M1E Processor (171CBU*)cisa_csaf_ot
Firmware SV2.90 includes a fix for this vulnerability and is available for download here:https://www.se.com/ww/en/product-range/535-modicon-momentum/?parent-category-id=3900&parent-subcategory-id=3930&filter=business-1-industrial-automation-and-control#products
https://www.se.com/ww/en/product-range/535-modicon-momentum/?parent-category-id=3900&parent-subcategory-id=3930&filter=business-1-industrial-automation-and-control#products - MitigationEcoStruxure™ Control Expertcisa_csaf_ot
Customers should immediately apply the following mitigations to reduce the risk of exploit:• Setup a VPN between the Modicon PLC controllers and the engineering workstation containing EcoStruxureTM Control Expert. Note: this functionality may be provided by an external IPSEC compatible firewall located close to the controller.• Harden the workstation running EcoStruxure™ Control Expert.
- MitigationModicon M340 Firmware versions prior to SV3.70 installed on Modicon M340 CPU (part numbers BMXP34*)cisa_csaf_ot
If customers choose not to apply the remediation then they are encouraged to immediately apply the following mitigations to reduce the risk of exploit: • Setup an application password in the project properties. • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP. • Configure the Access Control List following the recommendations of the user manuals: o “Modicon M340 for Ethernet Communications Modules and Processors User Manual” in chapter “Messaging Configuration Parameters”: https://www.se.com/ww/en/download/document/31007131K01000/ • Setup a secure communication according to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual,” in chapter “Setup secured communications”: https://www.se.com/ww/en/download/document/EIO0000001999/ • Consider the use of external firewall devices such as EAGLE40-07 from Belden to establish VPN connections for M340 & M580 architectures. For more details refer to the chapter “How to protect M580 and M340 architectures with EAGLE40 using VPN”: https://www.se.com/ww/en/download/document/EIO0000001999/
https://www.se.com/ww/en/download/document/31007131K01000/ - MitigationModicon M580 CPUcisa_csaf_ot
If customers choose not to apply the remediation, it is recommended to apply the following mitigations to reduce the risk of the exploit:• Setup an application password in the project properties. • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP. • Configure the Access Control List following the recommendations of the user manuals: o “Modicon M580, Hardware, Reference Manual”: https://www.se.com/ww/en/download/document/EIO0000001578/ • Setup a secure communication according to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual,” in chapter “Setup secured communications”: https://www.se.com/ww/en/download/document/EIO0000001999/ o use a BMENOC module and follow the instructions to configure IPSEC feature as described in the guideline “Modicon M580 - BMENOC03.1 Ethernet Communications Schneider Electric Security Notification Module, Installation and Configuration Guide” in the chapter “Configuring IPSEC communications”: https://www.se.com/ww/en/download/document/HRB62665/ OR • Use a BMENUA0100 module and follow the instructions to configure IPSEC feature as described in the chapter “Configuring the BMENUA0100 Cybersecurity Settings”: https://www.se.com/ww/en/download/document/PHA83350 OR • Consider use of external firewall devices such as EAGLE40-07 from Belden to establish VPN connections for M340 & M580 architectures. For more details refer to the chapter “How to protect M580 and M340 architectures with EAGLE40 using VPN”: https://www.se.com/ww/en/download/document/EIO0000001999/ • Ensure the M580 CPU is running with the memory protection activated by configuring the input bit to a physical input, for more details refer to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual”, “CPU Memory Protection section”: https://www.schneiderelectric.com/en/download/document/EIO0000001999/ o NOTE: The CPU memory protection cannot be configured with M580 Hot Standby CPUs. In such cases, use IPsec encrypted communication.
https://www.se.com/ww/en/download/document/EIO0000001578/ - MitigationModicon M580 CPU Safetycisa_csaf_ot
If customers choose not to apply the remediation then they are encouraged to immediately apply the following mitigations to reduce the risk of exploit: • Setup an application password in the project properties. • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP. • Configure the Access Control List following the recommendations of the user manuals: o “Modicon M580, Hardware, Reference Manual”: https://www.se.com/ww/en/download/document/EIO0 000001578/ • Setup a secure communication according to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual,” in chapter “Setup secured communications”: https://www.se.com/ww/en/download/document/EIO0000001 999/ o use a BMENOC module and follow the instructions to configure IPSEC feature as described in the guideline “Modicon M580 - BMENOC03.1 Ethernet Communications Schneider Electric Security Notification Module, Installation and Configuration Guide” in the chapter “Configuring IPSEC communications”: OR • Use a BMENUA0100 module and follow the instructions to configure IPSEC feature as described in the chapter “Configuring the BMENUA0100 Cybersecurity Settings”: https://www.se.com/ww/en/download/document/PHA83350 OR • Consider use of external firewall devices such as EAGLE40- 07 from Belden to establish VPN connections for M340 & M580 architectures. For more details refer to the chapter “How to protect M580 and M340 architectures with EAGLE40 using VPN”: https://www.se.com/ww/en/download/document/EIO0000001 999/ • Ensure the M580 CPU is running with the memory protection activated by configuring the input bit to a physical input, for more details refer to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual”, “CPU Memory Protection section”: https://www.schneiderelectric.com/en/download/document/EIO0000001999/ o NOTE: The CPU memory protection cannot be configured with M580 Hot Standby CPUs. In such cases, use IPsec encrypted communication. To further reduce the attack surface on Modicon M580 CPU Safety: o Ensure the CPU is running in Safety mode and maintenance input is configured to maintain this Safety mode during operation – refer to the document Modicon M580 - Safety System Planning Guide - in the chapter “Operating Mode Transitions”: https://www.se.com/ww/en/download/document/QGH60283/
https://www.se.com/ww/en/download/document/EIO0000001578/ - MitigationModicon MC80cisa_csaf_ot
Schneider Electric is establishing a remediation plan for all future versions of Modicon MC80 controllers that will include a fix for this vulnerability. We will update this document when the remediation is available. Until then, customers should immediately apply the following mitigations to reduce the risk of exploit: • Setup an application password in the project properties • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP • Configure the Access Control List following the recommendations of the user manuals: • “Modicon MC80 Programmable Logic Controller (PLC) manual” in the chapter “Access Control List (ACL)”: https://www.se.com/ww/en/download/document/EIO0000002071/ • Setup a secure communication according to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual,” in chapter “Setup secured communications”: https://www.se.com/ww/en/download/document/EIO0000001999/
https://www.se.com/ww/en/download/document/EIO0000002071/ - MitigationModicon Momentum Unity M1E Processor Firmware Versions prior to SV2.90 installed on Modicon Momentum Unity M1E Processor (171CBU*)cisa_csaf_ot
If customers choose not to apply the remediation then they are encouraged to immediately apply the following mitigations to reduce the risk of exploit: • Setup an application password in the project properties • Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP • Configure the Access Control List following the recommendations of the user manuals:• “Momentum for EcoStruxure™ Control Expert – 171 CBU 78090, 171 CBU 98090, 171 CBU 98091 Processors” manual in the chapter “Modbus Messaging and Access Control”: https://www.se.com/ww/en/download/document/HRB44124/ • Setup a secure communication according to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual,” in chapter “Setup secured communications”: https://www.se.com/ww/en/download/document/EIO0000001999/
https://www.se.com/ww/en/download/document/HRB44124/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (61)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-23-227-01Schneider Electric EcoStruxure Control Expert, Process Expert, Modicon M340, M580 and M580 CPU (Update A)2023-01-10icsa · cisa_csaf_otUS
Schneider Electric is aware of multiple vulnerabilities in its EcoStruxure™ Control Expert, Modicon M340, Momentum, MC80, M580 and M580 CPU Safety. The Modicon M580 are PAC and Safety PLCs with built-in Ethernet for process, high availability & safety solutions. The Modicon M340 offers compactness, flexibility, scalability, and robustness for the process industry and a wide range of demanding automation applications. The Modicon MC80 provides optimized operation, withstanding extreme conditions with high reliability and performance. The Modicon Momentum supports control and distributed I/O system with 4 fundamental components that easily snap together in various combinations to form versatile control systems or sub-systems. EcoStruxure™ Control Expert is the common programming, debugging and operating software for Modicon PLCs (Programmable Logic Controllers) and PACs (Programmable Automation Controllers). Failure to apply the mitigations provided below may risk unauthorized access to your PLC, which could result in the possibility of denial of service and loss of confidentiality and integrity of the controller.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-45789/cnnvd
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-010-06&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-010-06_Modicon_Controllers_Security_Notification.pdfcnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.4742cnnvd
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-010-06&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-010-06_Modicon_Controllers_Security_Notification.pdfenisa_euvd
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-010-06&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-010-06_Modicon_Controllers_Security_Notification.pdfPatchVendor Advisorynvd
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