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Detecting a serious security hole that allows jailbreaking iPhone 4S to iPhone X, Apple can't patch it?


This vulnerability affects all iOS devices using chips from Apple A5 to Apple A11

Recently, a security researcher posted on Twitter a new jailbreak tool called "Checkm8", which he claimed was related to bootrom on iOS devices equipped with A5 to A11 chips. . That means it affects a lot of Apple devices, including from iPhone 4S to iPhone X, some iPad models from iPad 2, and iPod touch fifth generation and above.

According to Macrumros, this will be the first publicly released bootrom exploit since the iPhone 4 in 2010 and pave the way for permanent, unfixable jailbreaks on hundreds of millions of affected iOS devices.

It is known that the bootrom is part of the boot read-only memory containing the code that is run first time the user boots the iOS device. It is known that this vulnerability is related to the protocol connected via USB. More importantly, due to a hardware flaw, Apple will not be able to patch it with software.

Experts assess that jailbreaking tools with bootrom are often extremely rare and receive a lot of attention because they bring permanent effects that cannot be patched. Fixing bootrom-related errors even requires refining silicon, refining the physical structure of the chip. One thing no company can do without product recall.

However, until now, the flaw that axi0mX launched is not a jailbreak tool that users can download and use. Instead, it is something that other hackers can research and leverage into future products. Therefore, users will still have to wait in the near future to see practical applications.


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