Rafal Wojtczuk and Joanna Rutkowska - Black Hat
Rafal Wojtczuk and Joanna Rutkowska - Black Hat Rafal Wojtczuk and Joanna Rutkowska - Black Hat
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01.07.2015
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More on the TXT Design Problem
Intel Solution to the TXT attack is called: STM Can we take a look at this STM? STM is currently not available. ? It is simple to write. There was just no market demand yet. ? Invisible Things Lab The dialogs between ITL and Intel presented here have been modified for brevity and for better dramatic effect.
- Page 58 and 59: Q: Does TXT measure currently used
- Page 60 and 61: Q:So, how does the SENTER deal with
- Page 62 and 63: TXT attack sketch (using tboot+Xen
- Page 64 and 65: Address of the shellcode (in the gu
- Page 67: The final outcome...
- Page 70 and 71: Stay tuned! SMM exploiting to be pr
- Page 73 and 74: More on the Implementation Bugs
- Page 75 and 76: SMM research quick history
- Page 77 and 78: No SMM bugs known... ...cannot read
- Page 79: De-soldering?
- Page 84 and 85: De-soldered SPI-flash chip
- Page 86 and 87: The BIOS image on the SPI-flash is
- Page 88 and 89: Remember our Q35 bug from Vegas? (W
- Page 90 and 91: Now, applying this to SMM...
- Page 95 and 96: We see we can access SMM memory usi
- Page 97 and 98: So, what now?
- Page 99 and 100: December 2008: Intel We think TXT i
- Page 101 and 102: Intel confirmed the problems in the
- Page 103 and 104: Intel believes the issues might aff
- Page 105 and 106: CERT has assigned the following tra
- Page 107: Stay tuned! (and don’t trust your
- Page 111 and 112: Potential issues with STM STM seems
- Page 113 and 114: Intel Why should we trust BIOS vend
- Page 115 and 116: Intel offered us a chance to read t
- Page 117 and 118: There are some other issues with ST
- Page 119 and 120: Still, allowing TXT to work without
- Page 121 and 122: Intel TXT is a new exciting technol
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