CVE-2020-15791

6.5MEDIUM

Key Information:

Vendor
Siemens
Status
Simatic S7-300 Cpu Family (incl. Related Et200 Cpus And Siplus Variants)
Simatic S7-400 Cpu Family (incl. Siplus Variants)
Simatic Winac Rtx (f) 2010
Sinumerik 840d Sl
Vendor
CVE Published:
9 September 2020

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 Version(s)

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

References

https://cert-portal.siemens.com/productcert/pdf/ssa-38168...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.