TXT's interactions with SMM are pretty broken [1]. For example, TXT doesn't (can't) validate SMRAM. This exploit still requires ring 0, which, hopefully, the c

TXT's interactions with SMM are pretty broken [1]. For example, TXT doesn't (can't) validate SMRAM. This exploit still requires ring 0, which, hopefully, the code running in TXT doesn't give access too willy nilly. [1] http://invisiblethingslab.com/resources/bh09dc/Attacking%20Intel%20TXT%20-%20paper.pdf http://invisiblethingslab.com/resources/bh09dc/Attacking%20I...