miscmedium

Touch

hackthebox

Task: Privilege escalation from ctf user to root with SUID touch binary. Solution: Exploit ld.so.preload hijacking by creating world-writable /etc/ld.so.preload via SUID touch with umask 0000, then inject malicious shared library to execute code as root.

$ ls tags/ techniques/
linuxsuidprivilege_escalationtouchld.so.preloadshared_library_injectionumask
suid_exploitationshared_library_injectionld_preload_hijackingumask_manipulation
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