CVE-2023-30756 Information

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.

Reference

https://cert-portal.siemens.com/productcert/html/ssa-423808.html