Vulnerability Alert: 4-Digit PIN Insufficient Protection Against Brute-Force Attacks

Summary

A vulnerability has been identified in SENTRON 7KM PAC3200 (All versions). Affected devices only provide a 4-digit PIN to protect from administrative access via Modbus TCP interface. Attackers with access to the Modbus TCP interface could easily bypass this protection by brute-force attacks or by sniffing the Modbus clear text communication.

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