Posts in "iOS"

ziVA: Zimperium’s iOS Video Audio Kernel Exploit

Follow @doadam Following my previous post, I’m releasing ziVA: a fully chained iOS kernel exploit that (should) work on all the iOS devices running iOS 10.3.1 or earlier. The exploit itself consists of multiple vulnerabilities that were discovered all in the same module: AppleAVEDriver. The exploit will be covered in depth in my HITBGSEC talk … Read More

ZPI: One approach to rule them all

In 1975, a book was published that changed the way we approach complex problems. Inspired on how nature works “Adaptation in Natural and Artificial Systems” set the bases of genetic algorithms. The release date of this blogpost is strongly linked to that book, it is a symbolic tribute to its author, John Henry Holland, who … Read More

Jailbreak versus Compromise…

We see a lot of confusion in the market about precisely what it means to jailbreak a device–and that confusion could lead to serious problems, especially regarding a hacker performing a jailbreak to attack a device. The security industry is notoriously full of acronyms, buzzwords and generally opaque jargon. Here at Zimperium, we try to keep … Read More

Zimperium zLabs iOS Security Advisories

As part of zLab’s platform research team, I’ve tried to investigate an area of the kernel that wasn’t thoroughly researched before.  After digging into some of Apple’s closed-source kernel modules, one code chunk led to another and I’ve noticed a little-known module, which I’ve never seen before, called AppleAVE. AppleAVE was written neglecting basic security fundamentals, to the extent that the … Read More