For the following exercises, I am using a lab setup that includes two virtual machines, one running a copy of Ubuntu Linux with IP address 192.168.179.131 assigned and the other running a copy of Kali Linux with IP address 192.168.179.129 assigned. The Ubuntu Linux virtual machine is used to run a Modbus stack, implemented in Python. The Kali virtual machine will be our attacker. I choose Kali Linux because it is a free pentesting distro that comes preloaded with a slew of hacking tools.
To get the Modbus server running on the Ubuntu VM, open Command Prompt and install the pyModbus module with the following commands:
$ sudo apt-get install python-pip # In case pip did not get installed $ sudo pip install pyModbus
Next, we ...
