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Help Fixing Code
#1
I'm doing a cybersecurity course and one of the levels requires editing a python script to brute force a .zip file. I edited some very easy errors like adding parenthesis etc. But when I run the code I get these errors and I dont know how to fix them.
import zipfile
import itertools
import time

# Function for extracting zip files to test if the password works!
def extractFile(zip_file, password):
    try:
        zip_file.extractall(pwd=password)
        return True
    except KeyboardInterrupt:
        exit(0)
# Main code starts here...
# The file name of the zip file.
zipfilename = 'planz.zip'
# The first part of the password. We know this for sure!
first_half_password = 'Super'
# We don't know what characters they add afterwards...
# This is case sensitive!
alphabet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
zip_file = zipfile.ZipFile(zipfilename)

# We know they always have 3 characters after Super...
# For every possible combination of 3 letters from alphabet...
for c in itertools.product(alphabet, repeat=3):
    # Slowing it down on purpose to make it work better with the web terminal
    # Remove at your peril
    time.sleep(0.001)
    # Add the three letters to the first half of the password.
    password = first_half_password+''.join(c)
    # Try to extract the file.
    print ("Trying: %s"% password)
    # If the file was extracted, you found the right password.
    if extractFile(zip_file, password):
        print ('*' * 20)
        print ('Password found: %s' % password)
        print ('Files extracted...')
        exit(0)

# If no password was found by the end, let us know!
print ('Password not found.')
Error:
Python 3.8.2 (tags/v3.8.2:7b3ab59, Feb 25 2020, 23:03:10) [MSC v.1916 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license()" for more information. >>> ================== RESTART: C:\Users\kianw\Desktop\zipcrack.py ================= Trying: Superaaa Traceback (most recent call last): File "C:\Users\kianw\Desktop\zipcrack.py", line 33, in <module> if extractFile(zip_file, password): File "C:\Users\kianw\Desktop\zipcrack.py", line 8, in extractFile zip_file.extractall(pwd=password) File "C:\Users\kianw\AppData\Local\Programs\Python\Python38\lib\zipfile.py", line 1647, in extractall self._extract_member(zipinfo, path, pwd) File "C:\Users\kianw\AppData\Local\Programs\Python\Python38\lib\zipfile.py", line 1700, in _extract_member with self.open(member, pwd=pwd) as source, \ File "C:\Users\kianw\AppData\Local\Programs\Python\Python38\lib\zipfile.py", line 1497, in open raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__) TypeError: pwd: expected bytes, got str >>>
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#2
Post your code here on the forum - in python tags, full traceback - in error tags.
See BBcode help for more info.
If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs

Reply
#3
extractFile need pwd paramenter to be bytes not string.
Can do it in the function call.
if extractFile(zip_file, password.encode()):
The basic is.
>>> s = 'Secret'
>>> s
'Secret'
>>> type(s)
<class 'str'>
>>> 
>>> s_byte = s.encode() #Same as s.encode('utf-8')
>>> s_byte
b'Secret'
>>> type(s_byte)
<class 'bytes'>
Reply
#4
(May-12-2020, 11:26 AM)buran Wrote: Post your code here on the forum - in python tags, full traceback - in error tags.
See BBcode help for more info.

Should i do it in a separate post or in a reply?
Reply
#5
(May-12-2020, 11:58 AM)kianwalters05 Wrote: Should i do it in a separate post or in a reply?
I edited your post to include the code and error
If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs

Reply
#6
(May-12-2020, 12:05 PM)buran Wrote:
(May-12-2020, 11:58 AM)kianwalters05 Wrote: Should i do it in a separate post or in a reply?
I edited your post to include the code and error
Wasnt showing up for me, thanks
Reply


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