A vulnerability has been identified in OpenPCS 7 V9.1 (All versions < V9.1 SP2 UC05), SIMATIC BATCH V9.1 (All versions < V9.1 SP2 UC05), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP2 UC05), SIMATIC Route Control V9.1 (All versions < V9.1 SP2 UC05), SIMATIC WinCC Runtime Professional V18 (All versions < V18 Update 4), SIMATIC WinCC Runtime Professional V19 (All versions < V19 Update 2), SIMATIC WinCC V7.4 (All versions), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 15), SIMATIC WinCC V8.0 (All versions < V8.0 Update 4). The implementation of the RPC (Remote Procedure call) communication protocol in the affected products do not properly handle certain malformed RPC messages. An attacker could use this vulnerability to cause a denial of service condition in the RPC server.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openpcs_7 | Siemens | * | 9.1 (including) |
| Simatic_batch | Siemens | * | 9.1 (including) |
| Simatic_pcs_7 | Siemens | * | 9.1 (including) |
| Simatic_route_control | Siemens | * | 9.1 (including) |
| Simatic_wincc | Siemens | 7.4 (including) | 7.4 (including) |
| Simatic_wincc | Siemens | 7.5 (including) | 7.5 (including) |
| Simatic_wincc | Siemens | 8.0 (including) | 8.0 (including) |
| Simatic_wincc_runtime_professional | Siemens | * | 18 (including) |
| Simatic_wincc_runtime_professional | Siemens | 19 (including) | 19 (including) |