19/ Jul/ 2017
Vancouver, Canada
Name of Conference:
USENIX WOOT 2017
Links:
Rowhammer demonstrated that non-physical hardwareweakness-
based attacks can be devastating. In a recent
paper, Cai et al. [2] propose that similar attacks can be
performed on MLC NAND flash-based SSDs, with potentially
devastating effects as well. In this paper, we discuss
the requirements for a successful, full-system, local privilege
attack on SSDs and show a filesystem based attack
vector, which we demonstrate. In particular, to motivate
the assumptions of the filesystem-level attack, we show
the attack primitive that an attacker can obtain by making
use of cell-to-cell interference is quite weak, and therefore
requires a carefully crafted attack at the OS layer for
successful exploitation.
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