If you've spotted an unintended Ethernet connection and wondered what you could do with all of the information coursing through those wires, there's an easy way to hack into it and find out.
Let's say there's a router that we need to know the password for, and we have physical access to an Ethernet connection where we can attach a Packet Squirrel, a pocket-sized tool to main-in-the-middle the network. If the router isn't using HTTPS, we can record all of the traffic over the Ethernet. Once somebody accesses the router, we gain access to the credentials to log in. Then we can do pretty much anything we want.
Requirements
Since we're using a Packet Squirrel for this demonstration, we'll obviously need a Packet Squirrel, which was created by Hak5. You can get one from its website, Amazon, or possibly another shop online.
It doesn't come with a power adapter, so we'll also need a Micro-USB cable and power source. In our demonstration, we're just plugging it into our computer's USB port, but if you want to deploy it out in the real world, you'll need a power adapter or small battery instead.
The Packet Squirrel requires just 5 volts and 150 milliamps, so you could use something as simple as an extra smartphone charger. If the drop-off won't be long, a tiny battery pack could be enough (this one comes with its own tiny USB cable!). For an extended session, ..
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