Droids in disarray: Detecting frame confusion in hybrid android apps

By Davide Caputo June 11, 2019

Frame Confusion is a vulnerability affecting hybrid applications which allows circumventing the isolation granted by the Same-Origin Policy. The detection of such vulnerability is still carried out manually by application developers, but the process is error-prone and often underestimated. In this paper, we propose a sound and complete methodology to detect the Frame Confusion on Android as well as a publicly-released tool (i.e., FCDroid) which implements such methodology and allows to detect the Frame Confusion in hybrid applications, automatically. We also discuss an empirical assessment carried out on a set of 50K applications using FCDroid, which revealed that a lot of hybrid applications suffer from Frame Confusion. Finally, we show how to exploit Frame Confusion on a news application to steal the user’s credentials.

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