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Catch base64 decode error on b64decode to raise our custom exception BadHash

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This commit is contained in:
Valentin Samir 2016-07-31 12:27:14 +02:00
parent fbc977c6bd
commit 4721eb4f81
1 changed files with 4 additions and 1 deletions
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3
cas_server/utils.py
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@ -561,7 +561,10 @@ class LdapHashUserPassword(object):
elif scheme == b'{CRYPT}': elif scheme == b'{CRYPT}':
return b'$'.join(hashed_passord.split(b'$', 3)[:-1])[len(scheme):] return b'$'.join(hashed_passord.split(b'$', 3)[:-1])[len(scheme):]
else: else:
try:
hashed_passord = base64.b64decode(hashed_passord[len(scheme):]) hashed_passord = base64.b64decode(hashed_passord[len(scheme):])
except TypeError as error:
raise cls.BadHash("Bad base64: %s" % error)
if len(hashed_passord) < cls._schemes_to_len[scheme]: if len(hashed_passord) < cls._schemes_to_len[scheme]:
raise cls.BadHash("Hash too short for the scheme %s" % scheme) raise cls.BadHash("Hash too short for the scheme %s" % scheme)
return hashed_passord[cls._schemes_to_len[scheme]:] return hashed_passord[cls._schemes_to_len[scheme]:]