The Nixu Challenge

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Recently you jumped on the smart home bandwagon and ordered an intelligent fridge from a promising startup company. The letter which accompanied the device says: "Congratulations for choosing our intelligent cloud-connected heat removal solution for consumables! Note that we are in an early phase, which means that our operations staff is keeping an extremely close eye on the fleet management portal, monitoring all device registrations."

In addition you also got a CD-ROM(!) with the firmware updater for the fridge along with the current firmware.

Firmware: iotfridge
Architecture diagram: fridge_2.0.png

Update (2019-01-02): for some reason DNS does not work in the R&D network, could be because of the very restricive firewall...

You get 200 points for this challenge.

Solvers: no one

2019 reversing web

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fridge 2.0