search common directories for Linux ELF executables with executable stack

gnu_stack.sh

#!/bin/sh

# search common directories for Linux ELF executables with executable stack

is_elf() {
	od -t x4 -N 4 $1 | sed -n 's/.*464c457f.*/YES/ p'
}

is_exec_stack() {
	readelf -l $1 2>&1 | sed -n '/GNU_STACK/ {n; s/.*RWE.*$/YES/ p}'
}

for i in $(find /lib /bin /usr/lib /usr/bin -type f -a -executable); do
	if [ "$(is_elf ${i})" = "YES" -a "$(is_exec_stack ${i})" = "YES" ]; then
			echo $i
	fi
done