CVE-2021-44694 Information

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V3.0.1) SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions) SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.6.0) SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.0.1) SIMATIC S7-1500 Software Controller (All versions) SIMATIC S7-PLCSIM Advanced (All versions < V5.0) SIPLUS TIM 1531 IRC (All versions) TIM 1531 IRC (All versions). Affected devices don’t process correctly certain special crafted packets sent to port 102/tcp which could allow an attacker to cause a denial-of-service in the device.

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-382653.pdf