This program demonstrates a time-of-check-time-of-use TOCTOU vulnerability in Firejail. Winning it causes Firejail to create an insecure overlayfs layout, that is then used to escalate privileges by making /etc/ld.so.preload user writable.
This site contains information which could be considered illegal in some countries. It is provided here for educational use only and is not intended to be used for illegal activities.
This program demonstrates a time-of-check-time-of-use TOCTOU vulnerability in Firejail. Winning it causes Firejail to create an insecure overlayfs layout, that is then used to escalate privileges by making /etc/ld.so.preload user writable.