How to use msfvenom to generate a binary that launches any command as root

Metasploit’s msfvenom tool can generate binaries that launch any command as root (useful for exploiting SUID/SGID applications that call other executables from part of the PATH that we control).

msfvenom -p linux/x86/exec CMD="/bin/bash -p" -f elf \
         -o shell.elf

Remember that the -p flag is required to keep Bash from dropping privileges!