var-202009-0573
Vulnerability from variot

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials. Several Siemens products contain vulnerabilities to inadequate protection of credentials.Information may be obtained. Siemens SIMATIC S7-300 CPU is a modular universal controller of Siemens (Siemens) for the manufacturing industry. Products in the Siemens SIMATIC S7-400 CPU series have been designed for process control in an industrial environment

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