Re:Intel ME Manufacturing Mode: obscured dangers and MacBook...
by oneplane on Wednesday October 03, 2018 @03:39PM
(#18134023)
Well, LinuxBoot is more like heads (the kernel based pre-boot environment), which was possible for a while now (because the DXE was often not required to be signed for BootGuard to be happy).
If we could do coreboot with only the FSP as blob, that would be cool. We'd still have the ME glued in tho, so not complete free booting there yet.
Also, sadly, most firmwares out there don't have that 1:1 edk2 code in their firmware.
"also potentially allows a developer to "jailbreak" their BootGuard protected laptop since the UEFI DXE volume can be replaced with a user provided LinuxBoot ROM image": https://twitter.com/qrs/status/1044157473882591233