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why not jmp [rip+0x0] ? about airhv HOT 3 OPEN

air14 avatar air14 commented on June 16, 2024
why not jmp [rip+0x0] ?

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Air14 avatar Air14 commented on June 16, 2024

It's irrelevent because jmp[rip+0x0] followed by address is the same size as

push lower
mov dword ptr [rsp + 4], higher
ret

And as for CET, I am not even sure if there is any version of Windows where CET is enabled by default in the kernel. There is an article about it https://www.bleepingcomputer.com/news/microsoft/windows-11-22h2-adds-kernel-exploit-protection-to-security-baseline/, but I could not find a way to enable it even in Win 11 22H2 and with a 13th generation processor

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invlpg avatar invlpg commented on June 16, 2024

it is coming 👀

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Air14 avatar Air14 commented on June 16, 2024

I got the option to enable kernel CET on my Windows system, but it's still not possible to run my own hypervisor because CET is part of vbs, which doesn't allow nested virtualization, so I don't think it's so important that airhv supports kernel hooking with enabled CET.

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