MobileBackup Copy Exploit

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Revision as of 02:58, 15 July 2010 by Dialexio (talk | contribs) (Added to "Exploits" category.)
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BackupAgent normally restricts files to be restored to a specific set of directories ("domains"). It even has a check to ensure that ".." isn't in the path:

   Path contains sneaky dots to traverse up outside of the domain: %@

However, for some reason, this check isn't applied when taking alternate code paths for special handling of certain files. For example, a restore to HomeDomain with a path starting with Library/Preferences/SystemConfiguration/ is migrated to the new directory for system configuration, /var/preferences/SystemConfiguration. This bypasses the sneaky dots check, so spirit is able to restore to this path: