VAR-201611-0404
Vulnerability from variot - Updated: 2022-05-17 02:08The Siemens SIMATIC S7-300 CPU is a modular universal controller for the manufacturing industry from Siemens, Germany. It is widely used in important industrial control fields such as tobacco, petrochemical and water.
A denial of service vulnerability exists in the Siemens SIMATIC S7-300 CPU. The Siemens SIMATIC S7-300 CPU refuses service during the communication of the specific ProfinetIO Layer 2 network packet. The CPU enters the fault mode and needs to be manually restarted for recovery. The attacker exploits the vulnerability to directly obtain the target information through the secondary MAC broadcast to initiate a denial of service attack
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