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.

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[binary] An iPod Nano Bug, XNU Vuln, and a WebKit UAF 45:10 Share

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