[0x05] Reversing Shorts :: iOS Kernel Demystified

The XNU kernel is essential to iOS and macOS security. In this video, we'll take a look into Apple's open-source releases as well as free tools to analyze closed-source extensions. Full playlist of reversing shorts:    • Reversing Shorts   XNU open source: https://github.com/apple-opensource/xnu IPSW downloads: https://ipsw.me/ img4tool: https://github.com/tihmstar/img4tool Ghidra kernelcache plugin: https://github.com/0x36/ghidra_kernel... iometa: https://github.com/Siguza/iometa/ jtool2: http://www.newosxbook.com/tools/jtool... Chapters: 00:00 - Why does kernel security matter? 01:15 - XNU Open Source 02:00 - IPSW and OTA to get a kernelcache 03:48 - How to unpack a kernelcache 04:35 - Loading a kernelcache into Ghidra 05:56 - Running the kernelcache plugin with iometa 07:18 - Symbolicating a kernel panic with jtool2 08:24 - Why a kernel panic is still a long way to go to a jailbreak