With the massive denial of service against a large DNS provider (in turn causing a lot of other things to have outages) on friday using a network of insecure IOT (Internet of things) devices (mostly cameras), a lot of folks are thinking about how to address IOT problems. There are a lot of problems and no easy answers, but I thought I would throw out a few ideas here and see if any resonate with others.
First, the problems: IOT devices are insecure and easily taken over for denial of service or other attacks, there is little to no economic incentive to make them more secure, consumers largely don’t care as long as they are still doing whatever their main function is, devices seldom get updates and when they do only for a short time before the company that made them moves on to something else.
- Make things vastly more cheap. Yeah, thats right, more cheap. To the point where you can dispose of or toss in recycling the device that just went out of support or was found to be used in some botnet. Or 3d print a new device. Of course this is not going to happen for a long while.
- Make updates very reliable. I think we can do this with something like ostree/atomic + some wrapper hardware. Upgrade, reboot, if things don’t come back in X minutes, reboot back to the last working version and send for help.
- Get IOT devices to use mainstream open Linux distros. These would provide source, upgrades, and device makers wouldn’t have to care about not supporting things. This would probibly take legislation and a big push for Linux distros to cater to IOT devices, and there would likely still be some hardware specific code (but it could be open and maintained in distros).
- Require Internet insurance for users of ISPs. ISPs that police botnet and other harmful devices would pay lower raates than ones that didn’t care, money raised could be used to shut down harmful devices.
It’s a pretty difficult problem sadly, and there’s no good answer, but we are going to have to start doing something or start getting used to large DDOSes taking out a bunch of things we use often.