Description
A vulnerability has been identified in SIMATIC S7-200 SMART CPU CR40 (6ES7288-1CR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU CR60 (6ES7288-1CR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR20 (6ES7288-1SR20-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR30 (6ES7288-1SR30-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR40 (6ES7288-1SR40-0AA1) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA0) (All versions), SIMATIC S7-200 SMART CPU SR60 (6ES7288-1SR60-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST20 (6ES7288-1ST20-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST30 (6ES7288-1ST30-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST40 (6ES7288-1ST40-0AA1) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA0) (All versions), SIMATIC S7-200 SMART CPU ST60 (6ES7288-1ST60-0AA1) (All versions). Affected devices do not properly handle TCP packets with an incorrect structure. This could allow an unauthenticated remote attacker to cause a denial of service condition. To restore normal operations, the network cable of the device needs to be unplugged and re-plugged.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | SIMATIC S7-200 SMART CPU CR40 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU CR60 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU SR20 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU SR30 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU SR40 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU SR60 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU ST20 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU ST30 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU ST40 | — | — |
| Siemens | SIMATIC S7-200 SMART CPU ST60 | — | — |
Advisories 3
- ICSA-24-261-01 Siemens SIMATIC S7-200 SMART Devices CISA ICS & IT advisories · Sep 10, 2024
- SSA-969738 SSA-969738: Denial of Service Vulnerability in SIMATIC S7-200 SMART Devices Siemens ProductCERT · Sep 10, 2024
- WID-SEC-2024-2095 Siemens SIMATIC S7: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Sep 9, 2024