PicoCTF - PW Crack 1

30 Aug 2022

Challenge

Tags

Beginner picoMini 2022 / General skill / password cracking

Description

Can you crack the password to get the flag?
Download the password checker here and you’ll need the encrypted flag in the same directory too.

Writeup

Download files

 wget https://artifacts.picoctf.net/c/53/level1.py
 wget https://artifacts.picoctf.net/c/53/level1.flag.txt.enc

Check python code
```
 vim level1.py
```
The place surrounded by the red frame reveals that password is 8713
python level1.py then input 8713 as password.
Here’s flag: picoCTF{545h_r1ng1ng_1b2fd683} ٩(^ᴗ^)۶

PicoCTF - HashingJobApp

30 Aug 2022

Challenge

Tags

Beginner picoMini 2022 / General skill / shell / python / nc / hashing

Description

If you want to hash with the best, beat this test!

nc saturn.picoctf.net 54555

Writeup

Run command nc saturn.picoctf.net 54555

Create a python script to transfer string to md5 hash

 import hashlib
 import sys

 def give_me_md5_hash(str):
   result = hashlib.md5((str).encode())

   # printing the equivalent hexadecimal value.
   print("The hexadecimal equivalent of hash is : ", end ="")
   print(result.hexdigest())
      
 give_me_md5_hash(sys.argv[1])

Execute script in this way :

  python3 HashingJobApp.py "some string" 
  # The hexadecimal equivalent of hash is : 53a09ce3db9c4d42c862dc0e29d777e5

It will ask you for md5 hash of string it give three times like below.
Here’s flag: picoCTF{4ppl1c4710n_r3c31v3d_674c1de2} ٩(^ᴗ^)۶

PicoCTF - Glitch cat

30 Aug 2022

Challenge

Tags

Beginner picoMini 2022 / General skill / shell / python / nc

Description

Our flag printing service has started glitching!

$ nc saturn.picoctf.net 65353

Writeup

We can simply create a python file to transfer ascii code to char.

 flag_enc = chr(0x39) + chr(0x63) + chr(0x34) + chr(0x32) + chr(0x61) + chr(0x34) + chr(0x35) + chr(0x64) 
 print('picoCTF{gl17ch_m3_n07_'+ flag_enc + '}')