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A comment on Zero Day in Microchip SAM Microcontrollers.

Re:Zero Day in Microchip SAM Microcontrollers by flowerthoughts on Wednesday April 02, 2025 @02:48PM (#43560056)
> The most interesting part of this attack was the discovery that the reset pin goes low for the window of time you should insert a glitch to bypass security!

Wait, does this mean you can use the reset signal directly as a glitch signal, or that the glitch has to happen for a short while within the window? If the former, that's the first time I hear of a device that provides its own bypass signal.

Excellent work!

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Re:Zero Day in Microchip SAM Microcontrollers by BitBangingBytes on Wednesday April 02, 2025 @02:50PM (#43560085)
The glitch has to happen within the window shown to you by the microcontroller. It seems to be in a different location for each microcontroller evaluated. The fact that it shows you where depending on which processor you’re attacking is pretty convenient!
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Re:Zero Day in Microchip SAM Microcontrollers by flowerthoughts on Thursday April 03, 2025 @06:07AM (#43567380)
Amazing!
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