Control-flow restrictor: compiler-based CFI for iOS

@inproceedings{Pewny2013ControlflowRC,
  title={Control-flow restrictor: compiler-based CFI for iOS},
  author={Jannik Pewny and Thorsten Holz},
  booktitle={ACSAC},
  year={2013}
}
Runtime attacks that exploit software vulnerabilities are still an important concern nowadays. Even smartphone operating systems such as Apple's iOS are affected by such attacks since the system is implemented in Objective-C, a programming language that enables attacks such as buffer overflows. As a generic protection technique against a whole class of attacks, control-flow integrity (CFI) offers some interesting properties. Recent work demonstrated that CFI can be implemented on iOS by… CONTINUE READING
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