[binary] An iPod Nano Bug, XNU Vuln, and a WebKit UAF

An Apple-focused episode this week, with a trivial iPod Nano BootRom exploit, and a WebKit Use-after-free. We also have a really cool XNU Virutal Memory bug, strictly a race condition and a logic differential between two alternate paths resulting in bypassing copy-on-write protection. We also handle a few questions from chat, how much reverse engineering is necessary for vuln research, how much programming knowledge is required, and a bit about AI's applicability to reverse engineering. Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/180.html [00:00:00] Introduction [00:00:18] Spot the Vuln - An Exceptional Login [00:02:39] wInd3x, the iPod Bootrom exploit 10 years too late [00:09:14] XNU VM copy-on-write bypass due to incorrect shadow creation logic during unaligned vm_map_copy operations [CVE-2022-46689] [00:17:52] [WebKit] Use-after-free of RenderMathMLToken in CSSCrossfadeValue::crossfadeChanged [00:21:46] Chat Question: How Important is Reverse Engineering to Vuln Research [00:40:33] Learning eBPF exploitation [00:41:23] [Chrome] Analyzing and Exploiting CVE-2018-17463 [00:42:40] Off-By-One Security - The Process of Reversing and Exploit Complex Vulnerabilities w/Chompie1337 The DAY[0] Podcast episodes are streamed live on Twitch twice a week:  -- Mondays at 3:00pm Eastern (Boston) we focus on web and more bug bounty style vulnerabilities  -- Tuesdays at 7:00pm Eastern (Boston) we focus on lower-level vulnerabilities  and exploits. We are also available on the usual podcast platforms:  -- Apple Podcasts: https://podcasts.apple.com/us/podcast/id1484046063  -- Spotify: https://open.spotify.com/show/4NKCxk8aPEuEFuHsEQ9Tdt  -- Google Podcasts: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hMTIxYTI0L3BvZGNhc3QvcnNz  -- Other audio platforms can be found at https://anchor.fm/dayzerosec You can also join our discord: https://discord.gg/daTxTK9