CVE-2020-28397
mediumPriorität · verfolgen · 21OT-Risiko · erhöhtEPSS 0.008 · 55. PerzentilDEEUUSEPSS · bewertet 2026-10-26
A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7 PLCSIM Advanced (All versions > V2 < V4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (Version V4.4), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions > V2.5 < V2.9.2), SIMATIC S7-1500 Software Controller (All versions > V2.5 < V21.9), TIM 1531 IRC (incl. SIPLUS NET variants) (Version V2.1). Due to an incorrect authorization check in the affected component, an attacker could extract information about access protected PLC program variables over port 102/tcp from an affected device when reading multiple attributes at once.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenSIMATIC Drive Controller familysiemens_psirt
Update to V2.9.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109773914/ - BehobenSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)siemens_psirt
Update to V21.9 or later version
https://support.industry.siemens.com/cs/ww/en/view/109759122/ - BehobenSIMATIC S7 PLCSIM Advancedsiemens_psirt
Updated to V4 or later version
https://support.industry.siemens.com/cs/de/en/view/109795016 - BehobenSIMATIC S7-1200 CPU family (incl. SIPLUS variants)siemens_psirt
Update to V4.4.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109793280 - BehobenSIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)siemens_psirt
Update to V2.9.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 Software Controllersiemens_psirt
Update to V21.9 or later version
https://support.industry.siemens.com/cs/de/en/view/109478528/ - BehobenTIM 1531 IRC (incl. SIPLUS NET variants)siemens_psirt
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109798331 - BehobenSIMATIC Drive Controller familycisa_csaf_ot
Update to V2.9.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109773914/ - BehobenSIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)cisa_csaf_ot
Update to V21.9 or later version
https://support.industry.siemens.com/cs/ww/en/view/109759122/ - BehobenSIMATIC S7 PLCSIM Advancedcisa_csaf_ot
Updated to V4 or later version
https://support.industry.siemens.com/cs/de/en/view/109795016 - BehobenSIMATIC S7-1200 CPU family (incl. SIPLUS variants)cisa_csaf_ot
Update to V4.4.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109793280 - BehobenSIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)cisa_csaf_ot
Update to V2.9.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 Software Controllercisa_csaf_ot
Update to V21.9 or later version
https://support.industry.siemens.com/cs/de/en/view/109478528/ - BehobenTIM 1531 IRC (incl. SIPLUS NET variants)cisa_csaf_ot
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109798331
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (84)
Betroffene Produkte und Versionsbereiche.
- Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)All versions > V2.5 → V2.9.2enisa_euvdEU
Advisories (2)
Hersteller- und Ökosystem-Meldungen dazu.
- SSA-865327SSA-865327: Incorrect Authorization Vulnerability in Industrial Products2021-08-10csaf · siemens_psirtDE
The latest updates for the below mentioned products fix a vulnerability that allows an unauthenticated attacker to read PLC variables from affected devices without proper authentication under certain circumstances. Siemens has released updates for some of the affected products, is working on updates for the remaining affected products and recommends specific countermeasures until fixes are available.
- ICSA-21-257-23Siemens SIMATIC and TIM2021-08-10icsa · cisa_csaf_otUS
The latest updates for the below mentioned products fix a vulnerability that allows an unauthenticated attacker to read PLC variables from affected devices without proper authentication under certain circumstances. Siemens has released updates for some of the affected products, is working on updates for the remaining affected products and recommends specific countermeasures until fixes are available.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (6)
Externe Belege — Patches, Meldungen, Analysen.
- https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdfcnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-21-257-23cnnvd
- https://vigilance.fr/vulnerability/SIMATIC-information-disclosure-via-Incorrect-Authorization-Check-36091cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021081110cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdfenisa_euvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdfPatchVendor Advisorynvd
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