The home WiFi network is a sacred place; your own local neighborhood of cyberspace. There we connect our phones, laptops, and “smart” devices to each other and to the Internet and in turn we improve our lives, or so we are told. By the late twenty teens, our local networks have become populated by a growing number of devices. From 📺 smart TVs and media players to 🗣 home assistants, 📹 security cameras, refrigerators, 🔒 door locks and🌡thermostats, our home networks are a haven for trusted personal and domestic devices.

Many of these devices offer limited or non-existent authentication to access and control their services. They inherently trust other machines on the network in the same way that you would inherently trust someone you’ve allowed into your home. They use protocols like Universal Plug and Play (UPnP) and HTTP to communicate freely between one another but are inherently protected from inbound connections from the Internet by means of their router’s firewall 🚫. They operate in a sort of walled garden, safe from external threat. Or so their developers probably thought.

Source: Attacking Private Networks from the Internet with DNS Rebinding

This is a good explanation of the attack including some POCs and test links

How your ethereum can be stolen through DNS rebinding