Description
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-7 LTE (All versions < V3.5.20), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.5.20), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMATIC WinCC Runtime Advanced (All versions), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). The web server of the affected devices do not properly handle certain errors when using the Expect HTTP request header, resulting in NULL dereference.
This could allow a remote attacker with no privileges to cause a denial of service condition in the system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) | < V3.5.20 | V3.5.20 |
| Siemens | SIMATIC CP 1243-1 (incl. SIPLUS variants) | < V3.5.20 | V3.5.20 |
| Siemens | SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) | < V3.5.20 | V3.5.20 |
| Siemens | SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) | < V3.5.20 | V3.5.20 |
| Siemens | SIMATIC CP 1243-7 LTE | < V3.5.20 | V3.5.20 |
| Siemens | SIMATIC CP 1243-8 IRC | < V3.5.20 | V3.5.20 |
| Siemens | SIMATIC HMI Comfort Panels (incl. SIPLUS variants) | All versions | — |
| Siemens | SIMATIC IPC DiagBase | — | — |
| Siemens | SIMATIC IPC DiagMonitor | All versions | — |
| Siemens | SIMATIC WinCC Runtime Advanced | All versions | — |
| Siemens | SIPLUS TIM 1531 IRC | < V2.4.8 | V2.4.8 |
| Siemens | TIM 1531 IRC | < V2.4.8 | V2.4.8 |
Advisories 4
- ICSA-24-256-09 Siemens SIMATIC, SIPLUS, and TIM CISA ICS & IT advisories · May 6, 2025
- WID-SEC-2024-2091 Siemens SIMATIC WinCC: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Feb 5, 2025
- NCSC-2024-0362 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Sep 10, 2024
- SSA-423808 SSA-423808: Multiple NULL Pointer Dereference Vulnerabilities in Industrial Products Siemens ProductCERT · Sep 10, 2024