Description
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.
CVSS breakdown
CVSS 3.1
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Siemens / SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)All versions – All versions
- Siemens / SIMATIC S7-400 CPU family (incl. SIPLUS variants)All versions – All versions
- Siemens / SIMATIC WinAC RTX F 2010All versions – All versions
- Siemens / SINUMERIK 840D slAll versions – All versions