CVE-2019-18336
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 < 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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Siemens | Simatic S7-300 Cpu Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 312 Ifm Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 313 Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 314 Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 314 Ifm Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 315 Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 315-2 Dp Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 316-2 Dp Firmware | before 3.3.17 |
| Siemens | Simatic S7-300 Cpu 318-2 Firmware | before 3.3.17 |
| Siemens | Sinumerik 840d Sl | before 4.8.6 before 4.94 |
| Siemens | Simatic Tdc Cp51m1 Firmware | before 1.1.8 |
| Siemens | Simatic Tdc Cpu555 Firmware | before 1.1.1 |