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.
CVSS breakdown
Affected products
- Siemens / SIMATIC CP 1242-7 V2 (incl. SIPLUS variants)0 – V3.5.20
- Siemens / SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants)0 – V3.5.20
- Siemens / SIMATIC CP 1243-1 IEC (incl. SIPLUS variants)0 – V3.5.20
- Siemens / SIMATIC CP 1243-1 (incl. SIPLUS variants)0 – V3.5.20
- Siemens / SIMATIC CP 1243-7 LTE0 – V3.5.20
- Siemens / SIMATIC CP 1243-8 IRC0 – V3.5.20
- Siemens / SIMATIC HMI Comfort Panels (incl. SIPLUS variants)All versions – All versions
- Siemens / SIMATIC IPC DiagBase0 – *
- Siemens / SIMATIC IPC DiagMonitorAll versions – All versions
- Siemens / SIMATIC WinCC Runtime AdvancedAll versions – All versions
- Siemens / SIPLUS TIM 1531 IRC0 – V2.4.8
- Siemens / TIM 1531 IRC0 – V2.4.8