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Re:Plug’nPwn – Connect to Jailbreak by penwellr on Tuesday October 13, 2020 @12:43PM (#24767251)
rickmark here: Sorry no, that's inaccurate. The T2 provides MacEFI.im4 to the Intel processor by emulating a flash controller over eSPI. So by modifying this file, and removing signature checks you can run any payload you like (see the EFI replacement video)
Re:Plug’nPwn – Connect to Jailbreak by MuffinFlavored on Tuesday October 13, 2020 @01:23PM (#24767651)
So there is some kind of signature defeat involved, correct?
Re:Plug’nPwn – Connect to Jailbreak by h0m3us3r on Wednesday October 14, 2020 @01:17AM (#24773337)
Yes, sigchecks had to be patched out of the kernel. And yes, it does not persist T2 reboot, but T2 only reboots if you hold power button for 5 sec. MacOS "reboot" does _not_ reboot T2.