Uploaded May 2021 | Updated September 2026, 2 weeks ago
We are using afl to fuzz the sudo binary, but we run into a lot more issues. In this video we are troubleshooting some issues and come up with solutions.
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Article version: liveoverflow.com/troubleshooting-afl-fuzzing-problems
Grab the files: github.com/LiveOverflow/pwnedit
Correction: afl can fuzz setuid process, I was just dumb. More details in this video: youtu.be/TLa2VqcGGEQ?t=323
CHAPTERS
00:00 - Intro
00:30 - afl: No more free CPU cores
01:10 - Patching execs in target binary
01:47 - afl: Unable to create file. No space left on device
03:06 - afl Trick: Find non-memory corruption issues
04:22 - Fuzzing setuid sudo as root
06:38 - Next fuzz attempt
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#LinuxSecurity #SecurityResearch #LiveOverflow
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We are using afl to fuzz the sudo binary, but we run into a lot more issues. In this video we are troubleshooting some issues and come up with solutions.
LEARN ON HEXTREE (ad)
Learn hacking on Hextree: hextree.io
Watch this video and more on Hextree: app.hextree.io/courses/yt-sudoedit/fuzzing-setuid-binary
Join the Hextree Discord: discord.gg/xgQpCQCpvy
Article version: liveoverflow.com/troubleshooting-afl-fuzzing-problems
Grab the files: github.com/LiveOverflow/pwnedit
Correction: afl can fuzz setuid process, I was just dumb. More details in this video: youtu.be/TLa2VqcGGEQ?t=323
CHAPTERS
00:00 - Intro
00:30 - afl: No more free CPU cores
01:10 - Patching execs in target binary
01:47 - afl: Unable to create file. No space left on device
03:06 - afl Trick: Find non-memory corruption issues
04:22 - Fuzzing setuid sudo as root
06:38 - Next fuzz attempt
SUPPORT
Per video: patreon.com/join/liveoverflow
Per month: youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join
Buy my handwriting font (ad): shop.liveoverflow.com
WATCH, FOLLOW & READ
Second channel: youtube.com/LiveUnderflow
Twitch: twitch.tv/LiveOverflow
Twitter: twitter.com/LiveOverflow
Instagram: instagram.com/LiveOverflow
TikTok: tiktok.com/@liveoverflow_
LiveOverflow blog: liveoverflow.com
Hextree blog (ad): hextree.io/blog
#LinuxSecurity #SecurityResearch #LiveOverflow
(ad) LiveOverflow YouTube channel is supported by advertisement and product placement.
