CVE-2019-18336

Summary

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.

Affected Software

VendorProductVersion RangeStatus
Siemens AGSIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)All versions < V3.X.17affected
Siemens AGSIMATIC TDC CP51M1All versions < V1.1.8affected
Siemens AGSIMATIC TDC CPU555All versions < V1.1.1affected
Siemens AGSINUMERIK 840D slAll versions < V4.8.6affected
Siemens AGSINUMERIK 840D slAll versions < V4.94affected

Weaknesses

  • CWE-400: CWE-400: Uncontrolled Resource Consumption

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References