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Kernel Root Exploit via a ptrace() and execve() Race Condition

Let's have a look at a recent kernel local privilege escalation exploit! Exploit Source: https://hxp.io/blog/79/hxp-CTF-2020-w... Kernel Developer Walkthrough:    • SerenityOS exploit analysis: HXP CTF ...   Syscalls, Kernel vs. User Mode and Linux Kernel Source Code:    • Syscalls, Kernel vs. User Mode and Li...   How Do Linux Kernel Drivers Work?    • How Do Linux Kernel Drivers Work? - L...   👕 T-Shirt Series:    • My Life in Short/Shirt Stories (Decem...   00:00 - Introduction 00:15 - Exploit PoC 00:39 - main() 00:52 - prepare_shellcode() 02:39 - mmap() shared memory to signal "ready" state 03:07 - fork() into [child] and [parent] 03:44 - [parent] wait for the child 04:00 - [child] unveil() loop 05:03 - [parent] ptrace ATTACH and POKE child 05:58 - [child] execve("passwd") 06:38 - [parent] PEEK entrypoint of child in loop 07:34 - [parent] child entrypoint changes! 07:49 - Exploit Walkthrough 09:20 - Root Shell via Shellcode 10:10 - Vulnerability Summary 10:37 - Which UNIX-like Kernel is this? 12:44 - The importance for Security Research 13:59 - Next Video and Resources 14:22 - Patreon and YT Members =[ ❤️ Support ]= → per Video:   / liveoverflow   → per Month:    / @liveoverflow   =[ 🐕 Social ]= → Twitter:   / liveoverflow   → Website: https://liveoverflow.com/ → Subreddit:   / liveoverflow   → Facebook:   / liveoverflow   =[ 📄 P.S. ]= All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm.