The DNP3 protocol is a multi-layer protocol that begins with a link layer connection. The DNP3 link layer address is required to establish a link layer connection. The DNP3 link layer address for the host was easily guessed, and a valid DNP3 link layer connection was established.
If a link layer connection is successful, additional Read/Write operations to compromise the integrity process control data may be possible.
Binary data scada_dnp3_guess_linkaddr.nbin