CVE-2024-5056
mediumpriority · track · 26EPSS 0.004 · 29 %ileEURUUSEPSS · scored 2026-10-27
CWE-552: Files or Directories Accessible to External Parties vulnerability exists which may prevent user to update the device firmware and prevent proper behavior of the webserver when specific files or directories are removed from the filesystem.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedModbus/TCP Ethernet Modicon M340 FactoryCast modulecisa_csaf_ot
Version SV6.80 of BMXNOE0110 includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/product/BMXNOE0110/ethernet-tcp-ip-network-module-modicon-m340-automation-platform-flash-memory-card-internal-ram-16-mb-1-x-rj45-10-100/
https://www.se.com/ww/en/product/BMXNOE0110/ethernet-tcp-ip-network-module-modicon-m340-automation-platform-flash-memory-card-internal-ram-16-mb-1-x-rj45-10-100/ - FixedModbus/TCP Ethernet Modicon M340 modulecisa_csaf_ot
Version SV3.60 of BMXNOE0100 includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/product/BMXNOE0100/network-module-modicon-m340-modbus-tcp-1-x-rj45-flash-memory-card
https://www.se.com/ww/en/product/BMXNOE0100/network-module-modicon-m340-modbus-tcp-1-x-rj45-flash-memory-card/ - FixedModicon M340 Firmware versions prior to SV3.70 installed on Modicon Controller M340cisa_csaf_ot
Version SV3.70 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 - MitigationModbus/TCP Ethernet Modicon M340 FactoryCast modulecisa_csaf_ot
If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: • Setup network segmentation and implement a firewall to block all unauthorized access to FTP port 21/TCP on the devices. • FTP service is disabled by default. Deactivate the FTP service after use when not needed. • 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/31 007131K01000/
https://www.se.com/ww/en/download/document/31007131K01000/ - MitigationModbus/TCP Ethernet Modicon M340 modulecisa_csaf_ot
If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: • Setup network segmentation and implement a firewall to block all unauthorized access to FTP port 21/TCP on the devices. • FTP service is disabled by default. Deactivate the FTP service after use when not needed. • 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/31 007131K01000/
https://www.se.com/ww/en/download/document/31007131K01000/ - MitigationModicon M340 Firmware versions prior to SV3.70 installed on Modicon Controller M340cisa_csaf_ot
If customers choose not to apply the remediation provided above, they should immediately apply the following mitigations to reduce the risk of exploit: • Setup network segmentation and implement a firewall to block all unauthorized access to FTP port 21/TCP on the devices. • FTP service is disabled by default. Deactivate the FTP service after use when not needed. • 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/31 007131K01000/
https://www.se.com/ww/en/download/document/31007131K01000/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (18)
Products and version ranges known to be affected.
- schneider-electric bmxnoe0100 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:bmxnoe0100_firmware:*:*:*:*:*:*:*:*
- schneider-electric bmxnoe0110 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:bmxnoe0110_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon m340 firmwareall versionsnvdUScpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-25-254-09Schneider Electric Modicon M340, BMXNOE0100, and BMXNOE0110 (Update A)2024-06-11icsa · cisa_csaf_otUS
Schneider Electric is aware of a vulnerability in its Modicon M340 and BMXNOE0100 and BMXNOE0110 products. The Modicon M340 is a programmable automation controller; BMXNOE0100 and BMXNOE0110 are network modules used with Modicon M340. Failure to apply the mitigations provided below may prevent user to update the device firmware and prevent proper behavior of the webserver. The BMXNOE and Modicon M340 operations are not impacted by this vulnerability. August Update: Remediations are available for BMXNOE0100 (Modbus/TCP Ethernet Modicon M340 module) and BMXNOE0110 (Modbus/TCP Ethernet Modicon M340 FactoryCast module)
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-5056/cnnvd
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2024-163-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2024-163-01.pdfcnnvd
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2024-163-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2024-163-01.pdfenisa_euvd
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2024-163-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2024-163-01.pdfVendor Advisorynvd
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