NewsSiemens ProductCERT

    SSA-850560 V1.0: Use of 4-Digit PIN in SENTRON PAC3200 Devices

    SENTRON PAC3200 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 monitoring the Modbus cleartext communication. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.

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    Source: https://cert-portal.siemens.com/productcert/html/ssa-850560.html

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