Return-oriented programming (ROP)is a technique used to break data execution protection(DEP). Existing ROP chain automatic construction technology cannot effectively use program controllable memory *** order to improv...
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ISBN:
(纸本)9781728143231;9781728143224
Return-oriented programming (ROP)is a technique used to break data execution protection(DEP). Existing ROP chain automatic construction technology cannot effectively use program controllable memory *** order to improve the utilization of memory space, this paper proposes a method of ROP chain fragmentation layout. By searching the controllable memory area of the program, a set of layoutable space is formed, and the overall ROP chain is segmented to add jump instructions at the end of each segment, thereby achieving a fragmented layout of the ROP *** prototype system ROP-chip based on S2E proved the effectiveness of the fragmented layout of the ROP chain.
Any added complexity in a software system will increase the possible program states, introducing a larger attack surface and the possibility of more exploitable flaws. JIT engines, however, alter the environment in wh...
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Any added complexity in a software system will increase the possible program states, introducing a larger attack surface and the possibility of more exploitable flaws. JIT engines, however, alter the environment in which they execute in far more interesting ways, not only through implementation flaws but also by their fundamental operation modes.
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