Undecimus by @Pwn20wnd is totally research friendly; just tried it on a 12.4 XR and happy to see so many things exported for exploring and playing around, who needs Apple's "research" devices anyway.
There you go:
iBoot.d421.RELEASE.im4p, iPhone 11 Pro, 13.4 17E255
d15a611e6792e13f68fd340df5e27558b589eb9332452086ec40b5a54cd5353a4ffc8425860beba3f380e884c1a2b683
There are 220 sandbox profiles in iOS 13.3.1; there were 193 in iOS 12.4. Here's the diff (all dumped/decompiled with my sandboxhelper IDA Python tool):
Nice paper on causing bit flips in Firefox arrays on Android
by abusing WebGL shader textures: csdl.computer.org/csdl/proceedin…
The authors use & reference my previously published in Phrack exploitation primitives for leveraging the bit flips to ASLR leak & RCE: phrack.org/issues/69/14.h…
I refactored my iBoot64helper to be an IDA loader; it can help you start reversing iBoot64. Here it is against version 4513.260.81 decrypted with the key released by @doadam ;)
github.com/argp/iBoot64he…