Authentication fails if the password contains the euro "€" character

[tigre-bleu]

CME fails if the password used when authenticating has a "€" character in it with a UnicodeEncodeError exception.

Steps to reproduce the behavior:

1. Create a user with a password containing € character
2. Try to authenticate using CME

To easily test, one could create a random share using impacket-smbserver

Expected behavior The password is valid so the authentication shall succeed

Screenshots

└──╼ $cme smb 127.0.0.1 -u test -p 't€st'
[*] Initializing FTP protocol database
[*] Initializing RDP protocol database
[*] Old configuration file detected, replacing with new version
SMB         127.0.0.1       445    NenjEgZo         [*] mHRWzOcT (name:NenjEgZo) (domain:JIdQIxUP) (signing:False) (SMBv1:True)
Traceback (most recent call last):
  File "/home/user/.local/bin/cme", line 8, in <module>
    sys.exit(main())
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/crackmapexec.py", line 257, in main
    asyncio.run(
  File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
    return future.result()
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/crackmapexec.py", line 105, in start_threadpool
    await asyncio.gather(*jobs)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/crackmapexec.py", line 69, in run_protocol
    await asyncio.wait_for(
  File "/usr/lib/python3.9/asyncio/tasks.py", line 442, in wait_for
    return await fut
  File "/usr/lib/python3.9/concurrent/futures/thread.py", line 52, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/protocols/smb.py", line 143, in __init__
    connection.__init__(self, args, db, host)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/connection.py", line 65, in __init__
    self.proto_flow()
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/connection.py", line 101, in proto_flow
    if self.login() or (self.username == '' and self.password == ''):
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/connection.py", line 300, in login
    elif self.plaintext_login(self.domain, user, password): return True
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/cme/protocols/smb.py", line 450, in plaintext_login
    self.conn.login(self.username, self.password, domain)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/impacket/smbconnection.py", line 276, in login
    return self._SMBConnection.login(user, password, domain, lmhash, nthash, ntlmFallback)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/impacket/smb.py", line 3494, in login
    self.login_extended(user, password, domain, lmhash, nthash, use_ntlmv2 = True)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/impacket/smb.py", line 3402, in login_extended
    type3, exportedSessionKey = ntlm.getNTLMSSPType3(auth, respToken['ResponseToken'], user, password, domain, lmhash, nthash, use_ntlmv2 = use_ntlmv2)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/impacket/ntlm.py", line 628, in getNTLMSSPType3
    ntlmChallengeResponse = NTLMAuthChallengeResponse(user, password, ntlmChallenge['challenge'])
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/impacket/ntlm.py", line 443, in __init__
    lmhash = compute_lmhash(password)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/impacket/ntlm.py", line 745, in compute_lmhash
    lmhash  = __DES_block(b(password[:7]), KNOWN_DES_INPUT)
  File "/home/user/.local/pipx/venvs/crackmapexec/lib/python3.9/site-packages/six.py", line 644, in b
    return s.encode("latin-1")
UnicodeEncodeError: 'latin-1' codec can't encode character '\u20ac' in position 1: ordinal not in range(256)

Crackmapexec info

• OS: Parrot OS
• Version of CME :5.4.1
• Installed from pipx using github master on 05/17/2023

[Marshall-Hallenbeck]

This looks like an error in the six package that impacket uses.