Shulou(Shulou.com)05/31 Report--

Jailbreak and blocking is a competition between Apple and hackers, of course, in addition to technical blocking, Apple is also trying to develop the habit of buying legitimate software.

According to foreign media reports, a security researcher has released an irreparable bootrom vulnerability that is said to be iPhone 4S until iPhone X is permanent (iPad, iPod touch and other iOS devices using the same A-series processors), which could lead to permanent jailbreak. If this checkm8 loophole is further exploited, it will lead to an epic jailbreak.

Axi0mX said: "what I am releasing today is just a vulnerability, not a jailbreak that supports Cydia. This is a permanently irreparable bootrom vulnerability for hundreds of millions of iOS devices, and most iPhone and iPad are vulnerable, from iPhone 4S (A5 chip) to iPhone 8 and iPhone X (A11 chip). Researchers and developers can use it to dump securerom, use the AES engine to decrypt the key package, and downgrade the device to enable JTAG. You still need additional hardware and software to use JTAG. "

In the iOS 12 Beta released in the summer of 2018, Apple patched a serious flaw in iBoot USB code. This vulnerability can only be triggered by USB and requires physical access. It cannot be used remotely. The last time iOS devices were exposed with BootROM vulnerabilities dates back to the era of iPhone 4, when the vulnerability discovered by geohot, known as the "genius boy", led iOS to a golden age of jailbreak.

Apple has expanded its vulnerability reward program and will start providing developers with pre-jailbreak devices next year, and they will not tolerate such an important vulnerability once it occurs.

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