CVE-2020-15791
lowPriorität · verfolgen · 26EPSS 0.007 · 54. PerzentilEUUSEPSS · bewertet 2026-10-26
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)cisa_csaf_ot
For more information on this vulnerability and the associated mitigations, please see Siemens security advisory SSA-381684
https://new.siemens.com/global/en/products/services/cert.html#SecurityPublications - BehobenSIMATIC S7-400 CPU family (incl. SIPLUS variants)cisa_csaf_ot
For more information on this vulnerability and the associated mitigations, please see Siemens security advisory SSA-381684
https://new.siemens.com/global/en/products/services/cert.html#SecurityPublications - BehobenSIMATIC WinAC RTX (F) 2010cisa_csaf_ot
For more information on this vulnerability and the associated mitigations, please see Siemens security advisory SSA-381684
https://new.siemens.com/global/en/products/services/cert.html#SecurityPublications - BehobenSINUMERIK 840D slcisa_csaf_ot
For more information on this vulnerability and the associated mitigations, please see Siemens security advisory SSA-381684
https://new.siemens.com/global/en/products/services/cert.html#SecurityPublications
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 3.3–6.5
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (26)
Betroffene Produkte und Versionsbereiche.
- siemens simatic s7-300 cpu 312 firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_312_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 314 firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_314_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 315-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_dp_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 315-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315-2_pn_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 315f-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315f-2_dp_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 315f-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_315f-2_pn_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 317-2 dp firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_317-2_dp_firmware:*:*:*:*:*:*:*:*
- siemens simatic s7-300 cpu 317-2 pn firmwarealle VersionennvdUScpe:2.3:o:siemens:simatic_s7-300_cpu_317-2_pn_firmware:*:*:*:*:*:*:*:*
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- ICSA-20-252-02Siemens SIMATIC S7-300 and S7-400 CPUs (Update C)2020-09-08icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could result in credential disclosure.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (7)
Externe Belege — Patches, Meldungen, Analysen.
- https://cert-portal.siemens.com/productcert/pdf/ssa-381684.pdfcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-15791cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-20-252-02cnnvd
- https://vigilance.fr/vulnerability/Siemens-SIMATIC-S7-300-S7-400-information-disclosure-via-ISO-TSAP-Password-33283cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.3077/cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-381684.pdfenisa_euvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-381684.pdfVendor Advisorynvd
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