Breaking

(In-)secure SD cards on WP8.1

During our first year of testing Windows Phone 8 applications we had yet another, let’s say: “surprising” finding. It all started with the first approaches on pentesting mobile applications on that  new and rather closed platform. Lacking jailbreak, root, and similar approaches we had a closer look at alternate approaches to have a look at an apps interior. We quickly hooked onto using modified firmwares (with deeper system access) and found a perfect solution in a little flaw concerning the handling of SD cards in WP8.1. A flaw that was, sadly for us, fixed silently….

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