Session-ception and User Namespaces Strike Again

Session-ception and User Namespaces Strike Again

From Day[0] by dayzerosec

April 1, 2025 · 50 min · Season 1 · Episode 279

About this episode

This episode discusses API hacking, Ubuntu's user namespace restrictions, a bug in CimFS for Windows, and revisits the NSO group WebP bug.

API hacking and bypassing Ubuntu's user namespace restrictions feature in this week's episode, as well as a bug in CimFS for Windows and revisiting the infamous NSO group WebP bug. Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/279.html [00:00:00] Introduction [00:00:28] Next.js and the corrupt middleware: the authorizing artifact [00:06:15] Pwning Millions of Smart Weighing Machines with API and Hardware Hacking [00:20:37] oss-sec: Three bypasses of Ubuntu's unprivileged user namespace restrictions [00:32:10] CimFS: Crashing in memory, Finding SYSTEM (Kernel Edition) [00:43:18] Blasting Past Webp [00:47:50] We hacked Google’s A.I Gemini and leaked its source code (at least some part) Podcast episodes are 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

People in this episode

Host: dayzerosec

Topics covered

  • API hacking
  • Ubuntu user namespace
  • CimFS bug
  • NSO group WebP bug
  • hardware hacking
  • smart weighing machines

Keywords

  • API hacking
  • Ubuntu
  • CimFS
  • NSO group
  • WebP bug
  • user namespace
  • smart weighing machines

Mentioned in this episode

Organizations: Ubuntu, CimFS, NSO group

Products: A.I Gemini

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