CoolStar once again sounds alarm on challenges associated with jailbreaking A12+ devices on iOS 15

Ever since a kernel-level exploit for iPhones and iPads running iOS & iPadOS 15.0-15.1.1 officially dropped, major players of the jailbreak community have been looking into the feasibility of incorporating it into a public jailbreak. Odyssey Team lead developer CoolStar was among one of the first to publicly acknowledge this, however they also warned about how changes made under the hood would make jailbreaking later firmware on A12 and newer devices more of a challenge.

Jake James publishes work-in-progress exploit achieving kernel R/W on A8-A9 running iOS 15.0-15.2 beta 1

If you’ve been following the developments surrounding iOS & iPadOS security research lately, then there’s no way you could have missed Brightiup’s CVE-2021-30955 kernel bug for iOS & iPadOS 15.0-15.1.1. Soon after the write-up, hackers and security researchers alike began making proof-of-concepts (PoCs), and later came the full-blown exploit from @b1n4r1b01.