CVE-2019-6821
mediumPriorität · verfolgen · 27OT-Risiko · erhöhtEPSS 0.019 · 80. PerzentilEURUUSEPSS · bewertet 2026-10-27
CWE-330: Use of Insufficiently Random Values vulnerability, which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenModicon M340cisa_csaf_ot
Configure the Access Control List following the recommendations of the user manual “Modicon M340 for Ethernet Communications Modules and Processors User Manual,” in the chapter titled “Messaging Configuration Parameters,” which is available here: https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000
https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000 - BehobenModicon M580cisa_csaf_ot
Configure the Access Control List following the recommendations of the user manual “Modicon M340 for Ethernet Communications Modules and Processors User Manual,” in the chapter titled “Messaging Configuration Parameters,” which is available here: https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000
https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000 - BehobenModicon Premiumcisa_csaf_ot
Configure the Access Control List following the recommendations of the user manual “Modicon M340 for Ethernet Communications Modules and Processors User Manual,” in the chapter titled “Messaging Configuration Parameters,” which is available here: https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000
https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000 - BehobenModicon Quantumcisa_csaf_ot
Configure the Access Control List following the recommendations of the user manual “Modicon M340 for Ethernet Communications Modules and Processors User Manual,” in the chapter titled “Messaging Configuration Parameters,” which is available here: https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000
https://download.schneiderelectric.com/files?p_enDocType=User+guide&p_File_Name=31007131_K01_000_16.pdf&p_Doc_Ref=31007131K01000 - MitigationModicon M340cisa_csaf_ot
Modicon Premium and Modicon Quantum: Set up network segmentation and implement a firewall to block all unauthorized access to all TCP ports.
- MitigationModicon M580cisa_csaf_ot
Modicon Premium and Modicon Quantum: Set up network segmentation and implement a firewall to block all unauthorized access to all TCP ports.
- MitigationModicon Premiumcisa_csaf_ot
Modicon Premium and Modicon Quantum: Set up network segmentation and implement a firewall to block all unauthorized access to all TCP ports.
- MitigationModicon Quantumcisa_csaf_ot
Modicon Premium and Modicon Quantum: Set up network segmentation and implement a firewall to block all unauthorized access to all TCP ports.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5.4–7.5
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (17)
Betroffene Produkte und Versionsbereiche.
- n/a Modicon Controllers, Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum≤ Modicon Controllers, Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantumenisa_euvdEU
- schneider-electric modicon m340 firmwarealle VersionennvdUScpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon m580 firmware< 2.30nvdUScpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon premium firmwarealle VersionennvdUScpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:*
- schneider-electric modicon quantum firmwarealle VersionennvdUScpe:2.3:o:schneider-electric:modicon_quantum_firmware:*:*:*:*:*:*:*:*
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- ICSA-19-136-01Schneider Electric Modicon Controllers2019-05-16icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow an attacker to hijack TCP connections or cause information leakage.
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (13)
Externe Belege — Patches, Meldungen, Analysen.
- http://www.schneider-electric.com/site/home/index.cfm/ww/?selectCountry=truecnnvd
- http://www.securityfocus.com/bid/108366cnnvd
- https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2019-134-03+-+Modicon+Controller.pdf&p_Doc_Ref=SEVD-2019-134-03cnnvd
- https://ics-cert.us-cert.gov/advisories/ICSA-19-136-01cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-6821cnnvd
- https://www.schneider-electric.com/en/download/document/SEVD-2019-134-03/cnnvd
- https://www.securityfocus.com/bid/108366cnnvd
- http://www.securityfocus.com/bid/108366enisa_euvd
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