so.cl

Rascals are always sociable, and the chief sign that a man has any nobility in his character is the little pleasure he takes in others company. Arthur Schopenhauer


Bypass TCC via iCloud

These vulnerabilities were first disclosed at TyphoonCon in Seoul during my talk What happens on your Mac, stays on Apple’s iCloud?! Bypassing Mac privacy mechanisms. I found 2 code injection opportunities in iMovie and GarageBand which allowed me impersonating their com.apple.private.icloud-account.access entitlements. Then, I was able to talk to iCloud XPC helper which gave me the user’s iCloud tokens. With these tokens, I was able to get all the data that is synchronized with iCloud and is normally protected via TCC (Contacts, Reminders, Calendars, Location, etc). Bypass TCC via iCloud

March 5, 2023
#apple ▪ #vulnerability