Attacking the macOS Kernel Graphics Driver

Just like the Windows platform, graphic drivers of macOS kernel are complicated and provide a large promising attack surface for EoPs and sandbox escapes from low-privileged processes. After auditing part of the binaries, I discovered a number of vulnerabilities last year. Including, NULL pointer dereference, stack-based buffer overflow, arbitrary kernel memory read and write, use-after-free, etc. Some of these vulnerabilities were reported to Apple Inc., such as the CVE-2017-7155, CVE-2017-7163, CVE-2017-13883.

In this presentation, I will share with you the detailed information about these vulnerabilities. Furthermore, from the attacker's perspective, I will also reveal some new exploit techniques and zero-days.

Speakers:


Yu Wang, Senior Staff Engineer at Didi Research America


Yu Wang is a senior staff engineer at Didi Research America. He has previously presented on Syscan360 2012/2013, Hitcon 2013, Black Hat USA 2014, Black Hat ASIA 2016, Black Hat USA Arsenal 2018 and other conferences.

Detailed Presentation:

(Source: DEF CON 26)
  
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Atlanta Chapter Meet: Build the Pen Test Maturity Model (Virtual Session)

  • Description:

    The Atlanta Pen Test Chapter has officially begun and is now actively underway.

    Atlanta CISOs and security teams have kicked off Pen Test Chapter #1 (Virtual), an ongoing working series focused on drafting Pen Test Maturity Model v0.1, designed for an intel-led, exploit-validated, and AI-assisted security reality. The chapter was announced at …

  • Created by: Biswajit Banerjee
  • Tags: ciso, pen testing, red team, security leadership