Publication

SoK: Shining Light on Shadow Stacks

Mathias Josef Payer
2019
Conference Papers

Abstract

Control-Flow Hijacking attacks are the dominant attack vector against C/C++ programs. Control-Flow Integrity (CFI) solutions mitigate these attacks on the forward edge, i.e., indirect calls through function pointers and virtual calls. Protecting the backward edge is left to stack canaries, which are easily bypassed through information leaks. Shadow Stacks are a fully precise mechanism for protecting backwards edges, and should be deployed with CFI mitigations.

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SoK: Shining Light on Shadow Stacks

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