📧 Subscribe to BBRE Premium: https://bbre.dev/premium
✉️ Sign up for the mailing list: https://bbre.dev/nl
📣 Follow me on Twitter: https://bbre.dev/tw
This video is about an RCE vulnerability in Github pages. The report on hackerone was rewarded $25,000. The issue exploited a YAML file used to configure Jekyll website.
Report/blogpost:
https://devcraft.io/2020/10/20/github...
Reporter's twitter:
/ wcbowling
His blog:
https://devcraft.io/
Follow me on twitter:
/ gregxsunday
Opensnoop tool:
https://github.com/brendangregg/perf-...
Timestamps:
00:00 Intro
00:28 What is Github Pages?
00:56 What is Jekyll?
01:46 What is Kramdown?
02:17 The root cause of the vulnerability
03:34 Uploading our .rb file on the server
04:25 Winning the race condition
05:23 The fix, reward and outro
#rce