Improved mandatory access control model for Android

Abstract

In order to protect Android platforms from the application-level privilege escalation attacks,this paper analyzed the XManDroid access control model,which has better ability on fighting these attacks,especially the collusion attack on the covert channel.To address the problem that XManDroid could not detect the multi-application and multi-permissions collusion attacks,this paper proposed an improved mandatory access control model which recorded the communication history of applications by building an IPC links colored diagram.At last,the test result on the prototype system show that the new model can solve the problem in the XManDroid well.