README.md

Webkit iOS 12.0.1 Regexec

THIS PROJECT HAS NOT BEEN FINISHED. IT MAY CONTAIN FLAWS AND DEPENDS ON COMMUNITY CONTRIBUTIONS

What is this

A JIT Compiler optimization bug in regex.
Live version: https://xtclab.nl

Why is this public

It's a 1day, it's patched and I hate having to codesign unc0ver.

Credits

• Regex exploit by Linus Henze.
• Mach-O loader (+jitMemCpy) by Luca Todesco.
• Technique by Niklas Baumstark.
• Mach_Swap by Ben Sparkes, S0rryMyBad and Brandon Azad
• Int64 library by @5aelo

Notes

• Tesmacho is not an actual payload it's 32-bit, just there for example purposes.