Checks that each TCP segment contains exactly one MODBUS PDU by ensuring that the TCP segment length and the MODBUS PDU length values are consistent with a single, complete PDU as the TCP payload. Frequent violation this policy can indicated attempts by an attacker to evade IPS protections or identify weaknesses in vulnerable implementations.You are entitled to use this signature only if you have purchased an IPS SCADA Signature License
There are no suggested filters.
MODBUS/TCP implementations that allow non-conformant behavior of multiple MODBUS/TCP PDUs in a single TCP segment or a single MODBUS/TCP PDU segmented across multiple TCP segments will trigger.
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