Hacker Xerub has just made public the firmware key of iPhone 5S running iOS 10.3.3. Here’s why this is important.
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Xerub releases iPhone 5S SEP firmware key
Hacker Xerub, the developer of extra_recipe jailbreak, has just released the firmware key of iPhone 5S.
This suggests that a security vulnerability exists in the BootROM or SEPROM.
Here’s what the hacker tweeted.
b370c7d85476823ef83d3991cb8078b954c3a8ffe7f2437ea23c4c7ea72a66544644b869849e4635dfbf74824a61a733
— ~ (@xerub) August 16, 2017
The “firmware keys” are different for each firmware version so hackers must find them individually.
For those who don’t know, Xerub is the developer of extra_recipe jailbreak and has been releasing decrypting firmware for quite some time. Anything that comes from him is highly reliable.
Why are firmware keys important?
This is of no importance to the average user but can be quite important for hackers and developers. Since the key is now decrypted, it will make SEP reverse engineering much easier.
This development has huge implications as a hacker can now control and tinker with what goes inside the SEP. We already have kloader support for 64-bit devices so all we need is someone to port it to iOS 9 and 10 firmware.
It could be useful for adding Touch ID support to a dual-booted 64-bit iOS device. Again, we would need proper tools to accomplish that.
At this stage, it’s as good as useless for us because kloader doesn’t support iOS 9 or 10.
Nevertheless, it does prove that the jailbreak community is back from the dead and progress is actually being made on various fronts.
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