4494ef3a9d
* defend against bad or missing crypt fixes #74279
212 lines
8.9 KiB
Python
212 lines
8.9 KiB
Python
# (c) 2018, Matthias Fuchs <matthias.s.fuchs@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import sys
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import pytest
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from ansible.errors import AnsibleError, AnsibleFilterError
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from ansible.plugins.filter.core import get_encrypted_password
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from ansible.utils import encrypt
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class passlib_off(object):
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def __init__(self):
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self.orig = encrypt.PASSLIB_AVAILABLE
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def __enter__(self):
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encrypt.PASSLIB_AVAILABLE = False
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return self
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def __exit__(self, exception_type, exception_value, traceback):
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encrypt.PASSLIB_AVAILABLE = self.orig
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def assert_hash(expected, secret, algorithm, **settings):
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if encrypt.PASSLIB_AVAILABLE:
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assert encrypt.passlib_or_crypt(secret, algorithm, **settings) == expected
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assert encrypt.PasslibHash(algorithm).hash(secret, **settings) == expected
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else:
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assert encrypt.passlib_or_crypt(secret, algorithm, **settings) == expected
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with pytest.raises(AnsibleError) as excinfo:
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encrypt.PasslibHash(algorithm).hash(secret, **settings)
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assert excinfo.value.args[0] == "passlib must be installed and usable to hash with '%s'" % algorithm
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@pytest.mark.skipif(sys.platform.startswith('darwin'), reason='macOS requires passlib')
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def test_encrypt_with_rounds_no_passlib():
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with passlib_off():
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assert_hash("$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7",
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secret="123", algorithm="sha256_crypt", salt="12345678", rounds=5000)
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assert_hash("$5$rounds=10000$12345678$JBinliYMFEcBeAXKZnLjenhgEhTmJBvZn3aR8l70Oy/",
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secret="123", algorithm="sha256_crypt", salt="12345678", rounds=10000)
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assert_hash("$6$12345678$LcV9LQiaPekQxZ.OfkMADjFdSO2k9zfbDQrHPVcYjSLqSdjLYpsgqviYvTEP/R41yPmhH3CCeEDqVhW1VHr3L.",
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secret="123", algorithm="sha512_crypt", salt="12345678", rounds=5000)
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# If passlib is not installed. this is identical to the test_encrypt_with_rounds_no_passlib() test
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@pytest.mark.skipif(not encrypt.PASSLIB_AVAILABLE, reason='passlib must be installed to run this test')
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def test_encrypt_with_rounds():
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assert_hash("$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7",
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secret="123", algorithm="sha256_crypt", salt="12345678", rounds=5000)
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assert_hash("$5$rounds=10000$12345678$JBinliYMFEcBeAXKZnLjenhgEhTmJBvZn3aR8l70Oy/",
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secret="123", algorithm="sha256_crypt", salt="12345678", rounds=10000)
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assert_hash("$6$12345678$LcV9LQiaPekQxZ.OfkMADjFdSO2k9zfbDQrHPVcYjSLqSdjLYpsgqviYvTEP/R41yPmhH3CCeEDqVhW1VHr3L.",
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secret="123", algorithm="sha512_crypt", salt="12345678", rounds=5000)
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@pytest.mark.skipif(sys.platform.startswith('darwin'), reason='macOS requires passlib')
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def test_encrypt_default_rounds_no_passlib():
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with passlib_off():
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assert_hash("$1$12345678$tRy4cXc3kmcfRZVj4iFXr/",
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secret="123", algorithm="md5_crypt", salt="12345678")
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assert_hash("$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7",
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secret="123", algorithm="sha256_crypt", salt="12345678")
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assert_hash("$6$12345678$LcV9LQiaPekQxZ.OfkMADjFdSO2k9zfbDQrHPVcYjSLqSdjLYpsgqviYvTEP/R41yPmhH3CCeEDqVhW1VHr3L.",
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secret="123", algorithm="sha512_crypt", salt="12345678")
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assert encrypt.CryptHash("md5_crypt").hash("123")
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# If passlib is not installed. this is identical to the test_encrypt_default_rounds_no_passlib() test
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@pytest.mark.skipif(not encrypt.PASSLIB_AVAILABLE, reason='passlib must be installed to run this test')
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def test_encrypt_default_rounds():
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assert_hash("$1$12345678$tRy4cXc3kmcfRZVj4iFXr/",
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secret="123", algorithm="md5_crypt", salt="12345678")
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assert_hash("$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7",
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secret="123", algorithm="sha256_crypt", salt="12345678")
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assert_hash("$6$12345678$LcV9LQiaPekQxZ.OfkMADjFdSO2k9zfbDQrHPVcYjSLqSdjLYpsgqviYvTEP/R41yPmhH3CCeEDqVhW1VHr3L.",
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secret="123", algorithm="sha512_crypt", salt="12345678")
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assert encrypt.PasslibHash("md5_crypt").hash("123")
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@pytest.mark.skipif(sys.platform.startswith('darwin'), reason='macOS requires passlib')
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def test_password_hash_filter_no_passlib():
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with passlib_off():
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assert not encrypt.PASSLIB_AVAILABLE
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assert get_encrypted_password("123", "md5", salt="12345678") == "$1$12345678$tRy4cXc3kmcfRZVj4iFXr/"
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with pytest.raises(AnsibleFilterError):
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get_encrypted_password("123", "crypt16", salt="12")
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def test_password_hash_filter_passlib():
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if not encrypt.PASSLIB_AVAILABLE:
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pytest.skip("passlib not available")
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with pytest.raises(AnsibleFilterError):
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get_encrypted_password("123", "sha257", salt="12345678")
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# Uses 5000 rounds by default for sha256 matching crypt behaviour
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assert get_encrypted_password("123", "sha256", salt="12345678") == "$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7"
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assert get_encrypted_password("123", "sha256", salt="12345678", rounds=5000) == "$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7"
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assert (get_encrypted_password("123", "sha256", salt="12345678", rounds=10000) ==
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"$5$rounds=10000$12345678$JBinliYMFEcBeAXKZnLjenhgEhTmJBvZn3aR8l70Oy/")
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assert (get_encrypted_password("123", "sha512", salt="12345678", rounds=6000) ==
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"$6$rounds=6000$12345678$l/fC67BdJwZrJ7qneKGP1b6PcatfBr0dI7W6JLBrsv8P1wnv/0pu4WJsWq5p6WiXgZ2gt9Aoir3MeORJxg4.Z/")
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assert (get_encrypted_password("123", "sha512", salt="12345678", rounds=5000) ==
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"$6$12345678$LcV9LQiaPekQxZ.OfkMADjFdSO2k9zfbDQrHPVcYjSLqSdjLYpsgqviYvTEP/R41yPmhH3CCeEDqVhW1VHr3L.")
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assert get_encrypted_password("123", "crypt16", salt="12") == "12pELHK2ME3McUFlHxel6uMM"
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# Try algorithm that uses a raw salt
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assert get_encrypted_password("123", "pbkdf2_sha256")
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@pytest.mark.skipif(sys.platform.startswith('darwin'), reason='macOS requires passlib')
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def test_do_encrypt_no_passlib():
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with passlib_off():
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assert not encrypt.PASSLIB_AVAILABLE
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assert encrypt.do_encrypt("123", "md5_crypt", salt="12345678") == "$1$12345678$tRy4cXc3kmcfRZVj4iFXr/"
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with pytest.raises(AnsibleError):
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encrypt.do_encrypt("123", "crypt16", salt="12")
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def test_do_encrypt_passlib():
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if not encrypt.PASSLIB_AVAILABLE:
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pytest.skip("passlib not available")
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with pytest.raises(AnsibleError):
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encrypt.do_encrypt("123", "sha257_crypt", salt="12345678")
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# Uses 5000 rounds by default for sha256 matching crypt behaviour.
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assert encrypt.do_encrypt("123", "sha256_crypt", salt="12345678") == "$5$12345678$uAZsE3BenI2G.nA8DpTl.9Dc8JiqacI53pEqRr5ppT7"
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assert encrypt.do_encrypt("123", "md5_crypt", salt="12345678") == "$1$12345678$tRy4cXc3kmcfRZVj4iFXr/"
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assert encrypt.do_encrypt("123", "crypt16", salt="12") == "12pELHK2ME3McUFlHxel6uMM"
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def test_random_salt():
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res = encrypt.random_salt()
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expected_salt_candidate_chars = u'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789./'
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assert len(res) == 8
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for res_char in res:
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assert res_char in expected_salt_candidate_chars
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def test_invalid_crypt_salt():
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pytest.raises(
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AnsibleError,
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encrypt.CryptHash('bcrypt')._salt,
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'_',
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None
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)
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encrypt.CryptHash('bcrypt')._salt('1234567890123456789012', None)
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pytest.raises(
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AnsibleError,
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encrypt.CryptHash('bcrypt')._salt,
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'kljsdf',
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None
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)
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encrypt.CryptHash('sha256_crypt')._salt('123456', None)
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pytest.raises(
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AnsibleError,
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encrypt.CryptHash('sha256_crypt')._salt,
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'1234567890123456789012',
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None
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)
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def test_passlib_bcrypt_salt(recwarn):
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passlib_exc = pytest.importorskip("passlib.exc")
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secret = 'foo'
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salt = '1234567890123456789012'
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repaired_salt = '123456789012345678901u'
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expected = '$2b$12$123456789012345678901uMv44x.2qmQeefEGb3bcIRc1mLuO7bqa'
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p = encrypt.PasslibHash('bcrypt')
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result = p.hash(secret, salt=salt)
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passlib_warnings = [w.message for w in recwarn if isinstance(w.message, passlib_exc.PasslibHashWarning)]
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assert len(passlib_warnings) == 0
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assert result == expected
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recwarn.clear()
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result = p.hash(secret, salt=repaired_salt)
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assert result == expected
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