This executable can spawn an interactive system shell.
This function can be performed by any unprivileged user.
start-stop-daemon -S -x /bin/sh
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
start-stop-daemon -S -x /bin/sh
This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
start-stop-daemon -S -x /bin/sh -- -p