Hardware Hacking 101: Glitching into Privileged Shells
Introduction Welcome back to our hardware hacking series! We are excited to share the “glitching” techniques we use in our device assessment process. Glitching, or voltage or fault injection, is the process of changing voltage levels in a digital system in a manner that causes disruption of the system under test or corruption of data. If timed correctly, a glitch of even 1 millisecond can cause a system to fail open into a potentially privileged state.