Type Confusion in Android NFC, PHP-FPM Local Privilege Escalation, and CallbackHell [Binary Exploitation]

Published: Nov. 4, 2021, midnight

Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/type-confusion-in-android-nfc-php-fpm-local-privilege-escalation-and-callbackhell.html

\n

This week we dive into PHP-FPM internals to look at escelating from a worker process to the root process, anotehr GDI bug, and a type confusion.

\n

[00:00:18] Spot the Vuln - Over the Edge - Solution

\n

[00:03:40] Trick & Treat! Paying Leets and Sweets for Linux Kernel privescs and k8s escapes

\n

[00:10:33] Android NFC: Type confusion due to race condition during tag type change

\n

[00:14:50] PHP-FPM local root vulnerability

\n

[00:28:26] GitHub - ly4k/CallbackHell: Exploit for CVE-2021-40449 - Win32k Elevation of Privilege Vulnerability (LPE)

\n

[00:29:54] GitHub - ly4k/CallbackHell: Exploit for CVE-2021-40449 - Win32k Elevation of Privilege Vulnerability (LPE)

\n

[00:36:39] This bug doesn\u2019t exist on x86: Exploiting an ARM-only race condition

\n

The DAY[0] Podcast episodes are streamed live on Twitch (@dayzerosec) twice a week:

\n

    \n\t
  • Mondays at 3:00pm Eastern (Boston) we focus on web and more bug bounty style vulnerabilities
  • \n\t
  • Tuesdays at 7:00pm Eastern (Boston) we focus on lower-level vulnerabilities and exploits.
  • \n
\n

The Video archive can be found on our Youtube channel: https://www.youtube.com/c/dayzerosec

\n

You can also join our discord: https://discord.gg/daTxTK9

\n

Or follow us on Twitter (@dayzerosec) to know when new releases are coming.