Unicode Troubles, Bypassing CFG, and Racey Pointer Updates

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7M ago 41:29

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On the web side, we cover a portswigger post on ways of abusing unicode mishandling to bypass firewalls and a doyensec guide to OAuth vulnerabilities. We also get into a Windows exploit for a use-after-free in the telephony service that bypasses Control Flow Guard, and a data race due to non-atomic writes in the macOS kernel.

Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/271.html

[00:00:00] Introduction

[00:00:22] Bypassing character blocklists with unicode overflows

[00:06:53] Common OAuth Vulnerabilities

[00:18:37] Windows Telephony Service - It's Got Some Call-ing Issues [CVE-2024-26230]

[00:32:05] TRAVERTINE (CVE-2025-24118)

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