Sandbox

this is apple's software based Hypervisor that was introduced in firmware 2.0

Problem's

• this made all App Store's apps need updating to work on the new iOS

• for app's to run they needed to have a folder called _Codesign in it was a file called CodeResources
• if a userland exploit was discovered in an App Store app the CodeResources would become invalid when a file was injected
• the checks are not as hard on app's in the firmware [[1]] (only version.plist is checked to prevent a soft_upgrade )

Exploit's

because of the dependancy on the CodeResources file it is venerable to the Incomplete Codesign Exploit