Cloak & Dagger attack discovered by security experts from Georgia Institute of Technology, which allows attackers to get complete control over your device.
These attack just require two permission that, in the event that the application is installed from the Play Store, the client does not require to grant permission and even the users are not notified.
Users don’t get notified about this malicious activity, and it will affect all the versions of Android including (including the latest version, Android 7.1.2).Permission abused by Cloak and Dagger attacks
If the user installed the malicious app from Google play store, the user’s not required to give any permission to get succeed with this attack, and it doesn’t show any indication to the user.
In this situation “draw on top” is simply possible, and this authorization is sufficient to bait the client into unconsciously enabling a11y (through clickjacking).
The conceivable attacks incorporate progressed clickjacking, unconstrained keystroke recording, stealthy phishing, the quiet establishment of a God-mode application (with all authorizations permissions), and silent phone crack + arbitrary activities (while keeping the screen off).
Security experts from Cloak & Dagger highlighted various possible attacks due to this permission issues:
Video PoC of the attacks by security experts at Cloak and Dagger.
Security specialists from Cloak and Dagger recommend users to check which applications approach the “draw on top” and the a11y authorizations.
To moderate the issue and cripple the Cloak and Dagger assaults in Android 7.1.2 it is conceivable to disable the “draw on top” permission:
Android 7.1.2 Settings → Apps → "Gear symbol" → Draw over Other Apps.
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