Xbox is x86 based and threat model assumes full physical accesshttps://twitter.com/marcan42/status/1259857760138690567 …
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Tony Chen’s talk covers this in detail. https://platformsecuritysummit.com/2019/speaker/chen/ …
What is that BS mention of the PS4 though? I demoed Linux on the PS4 (full OS-level pwn, enough to cheat etc and probably pirate games) in 2015 and gave a full talk on that in 2016, and people have been pirating games since 2017. Nowhere near the Xbox One's security.
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(Obligatory disclaimer: we didn't release any exploits so as to not enable piracy, we only released a Linux loader/kernel/userspace payload to be used bring-your-own-exploit-chain; in the second talk I briefly mentioned a physical PCIe attack as the original entrypoint only).
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