CVE-2020-15791

Summary

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.

Affected Software

VendorProductVersion RangeStatus
SiemensSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)All versionsaffected
SiemensSIMATIC S7-400 CPU family (incl. SIPLUS variants)All versionsaffected
SiemensSIMATIC WinAC RTX (F) 2010All versionsaffected
SiemensSINUMERIK 840D slAll versionsaffected

Weaknesses

  • CWE-522: CWE-522: Insufficiently Protected Credentials

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References