A tweet on Ian Beer Twitter account explains the jailbreak community know that he plans to release a discovered tfp0 exploit for Apple’s iOS devices running iOS 11.1.2 and below.
In the security world, Beer is a well-known and respected person to his work with Google and the Project Zero team, but again his name is fast becoming popular in the jailbreak world after discovering multiple security vulnerabilities in iOS and macOS. With his work and discovery, forced Apple to rewrite parts of the kernel belonging to those platforms.
This latest one could lead to a jailbreak solution, as could be one of the biggest parts of the jigsaw for a modern hack for compatible devices. Indeed, it’s worth mentioning that this discovery and release is not a fully working and functional jailbreak that will liberate compatible devices running iOS 11.1.2 or below. But, this is what is defined as a tfp0 exploit which essentially allows those with the required skillsets and knowledge of Apple’s iOS platform to run unsigned and unofficial code at the kernel level.
Like the exploits as of Luca Todesco’s yalu102 KPP bypass, this tfp0 exploit could also be a significant part of putting a jailbreak together for iOS 11 (iOS 11.0-11.1.2).
This may be Beer’s finding, working with security and discovering these types of vulnerabilities, but at no point has he ever stipulated that he’s working on a jailbreak release which utilizes his findings. Nevertheless, his tweet suggests that anyone who is interested in “bootstrapping iOS 11 kernel security research” should prepare themselves a “research-only device on iOS 11.1.2 or below.” Later goes on mentioning that the “Part 1 (tfp0)” release will be upcoming. No additional information was provided with the tweet.
The tweet is otherwise the first to head from @i41nbeer Twitter account, which was recently created during December 2017. That alone could make a difference if it wasn’t for Ben Hawkes – also of team Project Zero – actually confirming that the profile does belong to his colleague. Thus, taking the opportunity to mock the expected response of the jailbreak community with the “Wen JB eta” text inside of the confirmation tweet.
For those who are especially running iOS 11.2, it could be an interesting comeback to downgrade to an earlier version of iOS 11 firmware. The event that this is used to create a functioning jailbreak. At the time of writing this post, Apple is still signing iOS 11.1.2 for all devices. Downgrade while you can! Hopefully.
(Source: @i41nbeer [Twitter])
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