Engadget Japan

This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl.

The team behind the iPhone jailbreak tool checkra1n has released the latest version 0.11.0, which allows iOS 14 to be jailbroken. However, support is limited to previous generations with the A9 (on the iPhone 6s/6s Plus announced in September 2015) or A9X (e.g. the first generation 12.9-inch iPad Pro) as the SoC.

Jailbreaking is taking advantage of a vulnerability that exists in an iOS device to enable the use of unofficial apps and features that are not authorized by Apple. And checkra1n is a jailbreak tool developed based on checkm8, an unpatchable vulnerability that exists in past iPhone models (iPhone 4s - iPhone X) that was discovered in 2018. This means it was originally limited to past models from 2011-2017, but it still has the potential to permanently jailbreak hundreds of millions of devices.

In a statement touting the announcement of the latest jailbreak tool, the team said it will take time to jailbreak iOS 14 on newer devices to get around the "new security relaxations" that Apple has added.

The team stated, "In ‌iOS 14‌, Apple added a new mitigation to SEPOS on A10 and above (except on Apple TVs and iBridge): if the device was booted from DFU mode and the Secure Enclave receives a request to decrypt user data, it will panic the device. Since checkm8 does not give us control over the Secure Enclave, this is not trivial to workaround. However, with the recently published blackbird vulnerability (this is also said to be unpatchable), we are able to get control of the Secure Enclave on A10 and A10X and disable this mitigation. Support for A10 (on the iPhone 7 and the 6th to 7th generation iPad) and A10X (on the 2nd generation iPad Pro and other devices) devices is being worked on and is expected to be ready in the coming weeks."

Anyway, the current version of Checkra1n works for ‌iOS 14‌ and iPadOS 14 on the following devices.

  • iPhone 6s, 6s Plus, and SE

  • iPad (5th generation)

  • ‌iPad‌ Air 2

  • ‌iPad‌ mini 4

  • iPad Pro (1st generation)

  • Apple TV 4 and 4K

The team said it hoped to support newer devices in the coming weeks, with support for ‌iPhone‌ 8 and ‌iPhone‌ X to "be addressed in a future statement."

In addition to in-house research, Apple has an Apple Security Research Device Program that lends specially designed iPhones to iOS security researchers. However, the vulnerabilities that can be found and addressed there are limited to recent models, and not to models that are several years old, much less devices that contain hardware vulnerabilities that are not software-patchable.

That said, we don't hear about Apple recalling past models. Maybe Apple is waiting for the percentage of past models to decrease as the latest models with tighter security measures become more popular, and eventually they will die out naturally.

Source: Checkra1n

Via: MacRumors

This article is based on an article from the Japanese edition of Engadget and was created using the translation tool Deepl. The Japanese edition of Engadget does not guarantee the accuracy or reliability of this article.