Difference between revisions of "Sandbox"

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Apple's software based [[Wikipedia:Hypervisor|Hypervisor]] that was introduced in [[iOS]] 2.0.
{{DISPLAYTITLE:sandbox}}
 
Apple's software based [[Wikipedia:Hypervisor|Hypervisor]] that was introduced in [[firmware]] 2.0 is named [[Sandbox]].
 
   
 
== Problem's ==
 
== Problem's ==
*In addition to the new set of frameworks in 2.0, applications had to be tweaked to use the new Sandbox.
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*In addition to the new set of frameworks in 2.0, applications had to be tweaked to use the new sandbox.
 
*For applications to run, they need to have a folder called [[_Codesign]] with a file inside called [[CodeResources]]
 
*For applications to run, they need to have a folder called [[_Codesign]] with a file inside called [[CodeResources]]
 
*If a [[userland]] exploit was discovered in an [[App Store]] app, the [[CodeResources]] would become invalid when a file was injected.
 
*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 built in applications in the [[firmware]] [[http://pastebin.com/6C55pTxf]] (only version.plist is checked to prevent a [[soft_upgrade]] )
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*The checks are not as hard on built in applications in the [[firmware]] [http://pastebin.com/6C55pTxf] (only version.plist is checked to prevent a [[soft upgrade]] )
   
 
== Exploits ==
 
== Exploits ==

Revision as of 16:13, 14 December 2011

Apple's software based Hypervisor that was introduced in iOS 2.0.

Problem's

  • In addition to the new set of frameworks in 2.0, applications had to be tweaked to use the new sandbox.
  • For applications to run, they need to have a folder called _Codesign with a file inside 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 built in applications in the firmware [1] (only version.plist is checked to prevent a soft upgrade )

Exploits

The dependency on the CodeResources file makes it vulnerable to the Incomplete Codesign Exploit

More Info

http://iphonedevwiki.net/index.php/Seatbelt