Brandon氏が、iPhone 11を含むiOS 13.3以下で利用可能なkernel Exploitがリリース予定！

If you're interested in bootstrapping iOS kernel security research on A13, keep an iPhone 11 on iOS 13.3. I will be releasing a proof-of-concept exploit that provides kernel read/write on iPhone12,3 17C54.

— Brandon Azad (@_bazad) February 4, 2020

FWIW, I will be working on updating the unc0ver jailbreak for iOS 13.0-13.3 as soon as the new kernel exploit is available.

For now, make sure that automatic software updates are disabled on your device and save blobs for iOS 13.3.

— Pwn20wnd (@Pwn20wnd) February 5, 2020

and yes, substitute is also broken on A9 – A11 on iOS 13

if I release a semi-untether tool for 13.x, it'll probably use substrate for A9-A11 since it's easier to use that at this point

besides I should get around to switching Chimera to substrate as no one maintains substitute

— CoolStar (@CStar_OW) February 5, 2020

So far, I have found 3 changes that break my existing implementation of tweak injection on iOS 13 A12+ and I have already bypassed one of them. The underlying technique behind PAC-Less seems to be unaffected though so that's good.

— Pwn20wnd (@Pwn20wnd) February 5, 2020

And substitute is up and running on iOS 13.3!https://t.co/HG2HosZSYK

— CoolStar (@CStar_OW) February 6, 2020