medium6.5
CVE-2020-15791
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Siemens | Simatic S7-300 Cpu 312 Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 314 Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 315-2 Dp Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 315-2 Pn Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 317-2 Pn Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 317-2 Dp Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 315f-2 Dp Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 315f-2 Pn Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 317f-2 Pn Firmware | All versions |
| Siemens | Simatic S7-300 Cpu 317f-2 Dp Firmware | All versions |
| Siemens | Simatic S7-400 Cpu 412 Firmware | All versions |
| Siemens | Simatic S7-400 Cpu 414 Firmware | All versions |