diff options
Diffstat (limited to 'source4/dsdb/tests/python/password_lockout.py')
| -rwxr-xr-x | source4/dsdb/tests/python/password_lockout.py | 1704 |
1 files changed, 1704 insertions, 0 deletions
diff --git a/source4/dsdb/tests/python/password_lockout.py b/source4/dsdb/tests/python/password_lockout.py new file mode 100755 index 0000000..78edcce --- /dev/null +++ b/source4/dsdb/tests/python/password_lockout.py @@ -0,0 +1,1704 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +# This tests the password lockout behavior for AD implementations +# +# Copyright Matthias Dieter Wallnoefer 2010 +# Copyright Andrew Bartlett 2013 +# Copyright Stefan Metzmacher 2014 +# + +import optparse +import sys +import base64 +import time + +sys.path.insert(0, "bin/python") +import samba + +from samba.tests.subunitrun import TestProgram, SubunitOptions +from samba.netcmd.main import samba_tool + +import samba.getopt as options + +from samba.auth import system_session +from samba.credentials import DONT_USE_KERBEROS, MUST_USE_KERBEROS +from ldb import SCOPE_BASE, LdbError +from ldb import ERR_CONSTRAINT_VIOLATION +from ldb import ERR_INVALID_CREDENTIALS +from ldb import Message, MessageElement, Dn +from ldb import FLAG_MOD_REPLACE +from samba import dsdb +from samba.samdb import SamDB +from samba.tests import delete_force +from samba.dcerpc import security, samr +from samba.tests.pso import PasswordSettings +from samba.net import Net +from samba import NTSTATUSError, ntstatus +import ctypes + +parser = optparse.OptionParser("password_lockout.py [options] <host>") +sambaopts = options.SambaOptions(parser) +parser.add_option_group(sambaopts) +parser.add_option_group(options.VersionOptions(parser)) +# use command line creds if available +credopts = options.CredentialsOptions(parser) +parser.add_option_group(credopts) +subunitopts = SubunitOptions(parser) +parser.add_option_group(subunitopts) +opts, args = parser.parse_args() + +if len(args) < 1: + parser.print_usage() + sys.exit(1) + +host = args[0] + +lp = sambaopts.get_loadparm() +global_creds = credopts.get_credentials(lp) + +import password_lockout_base + +# +# Tests start here +# + + +class PasswordTests(password_lockout_base.BasePasswordTestCase): + def setUp(self): + self.host = host + self.host_url = "ldap://%s" % host + self.host_url_ldaps = "ldaps://%s" % host + self.lp = lp + self.global_creds = global_creds + self.ldb = SamDB(url=self.host_url, session_info=system_session(self.lp), + credentials=self.global_creds, lp=self.lp) + super(PasswordTests, self).setUp() + + self.lockout2krb5_creds = self.insta_creds(self.template_creds, + username="lockout2krb5", + userpass="thatsAcomplPASS0", + kerberos_state=MUST_USE_KERBEROS) + self._readd_user(self.lockout2krb5_creds, + lockOutObservationWindow=self.lockout_observation_window) + self.lockout2krb5_ldb = SamDB(url=self.host_url, + credentials=self.lockout2krb5_creds, + lp=lp) + + self.lockout2ntlm_creds = self.insta_creds(self.template_creds, + username="lockout2ntlm", + userpass="thatsAcomplPASS0", + kerberos_state=DONT_USE_KERBEROS) + self._readd_user(self.lockout2ntlm_creds, + lockOutObservationWindow=self.lockout_observation_window) + self.lockout2ntlm_ldb = SamDB(url=self.host_url, + credentials=self.lockout2ntlm_creds, + lp=lp) + + + def use_pso_lockout_settings(self, creds): + + # create a PSO with the lockout settings the test cases normally expect + # + # Some test cases sleep() for self.account_lockout_duration + pso = PasswordSettings("lockout-PSO", self.ldb, lockout_attempts=3, + lockout_duration=self.account_lockout_duration) + self.addCleanup(self.ldb.delete, pso.dn) + + userdn = "cn=%s,cn=users,%s" % (creds.get_username(), self.base_dn) + pso.apply_to(userdn) + + # update the global lockout settings to be wildly different to what + # the test cases normally expect + self.update_lockout_settings(threshold=10, duration=600, + observation_window=600) + + def _reset_samr(self, res): + + # Now reset the lockout, by removing ACB_AUTOLOCK (which removes the lock, despite being a generated attribute) + samr_user = self._open_samr_user(res) + acb_info = self.samr.QueryUserInfo(samr_user, 16) + acb_info.acct_flags &= ~samr.ACB_AUTOLOCK + self.samr.SetUserInfo(samr_user, 16, acb_info) + self.samr.Close(samr_user) + + +class PasswordTestsWithoutSleep(PasswordTests): + def setUp(self): + # The tests in this class do not sleep, so we can have a + # longer window and not flap on slower hosts + self.account_lockout_duration = 30 + self.lockout_observation_window = 30 + super(PasswordTestsWithoutSleep, self).setUp() + + def _reset_ldap_lockoutTime(self, res): + self.ldb.modify_ldif(""" +dn: """ + str(res[0].dn) + """ +changetype: modify +replace: lockoutTime +lockoutTime: 0 +""") + + def _reset_samba_tool(self, res): + username = res[0]["sAMAccountName"][0] + + result = samba_tool('user', 'unlock', username, + "-H%s" % self.host_url, + "-U%s%%%s" % (global_creds.get_username(), + global_creds.get_password())) + self.assertEqual(result, None) + + def _reset_ldap_userAccountControl(self, res): + self.assertIn("userAccountControl", res[0]) + self.assertIn("msDS-User-Account-Control-Computed", res[0]) + + uac = int(res[0]["userAccountControl"][0]) + uacc = int(res[0]["msDS-User-Account-Control-Computed"][0]) + + uac |= uacc + uac = uac & ~dsdb.UF_LOCKOUT + + self.ldb.modify_ldif(""" +dn: """ + str(res[0].dn) + """ +changetype: modify +replace: userAccountControl +userAccountControl: %d +""" % uac) + + def _reset_by_method(self, res, method): + if method == "ldap_userAccountControl": + self._reset_ldap_userAccountControl(res) + elif method == "ldap_lockoutTime": + self._reset_ldap_lockoutTime(res) + elif method == "samr": + self._reset_samr(res) + elif method == "samba-tool": + self._reset_samba_tool(res) + else: + self.fail("Invalid reset method[%s]" % method) + + def _test_userPassword_lockout_with_clear_change(self, creds, other_ldb, method, + initial_lastlogon_relation=None): + """ + Tests user lockout behaviour when we try to change the user's password + but specify an incorrect old-password. The method parameter specifies + how to reset the locked out account (e.g. by resetting lockoutTime) + """ + # Notice: This works only against Windows if "dSHeuristics" has been set + # properly + username = creds.get_username() + userpass = creds.get_password() + userdn = "cn=%s,cn=users,%s" % (username, self.base_dn) + + use_kerberos = creds.get_kerberos_state() + if use_kerberos == MUST_USE_KERBEROS: + logoncount_relation = 'greater' + lastlogon_relation = 'greater' + self.debug("Performs a password cleartext change operation on 'userPassword' using Kerberos") + else: + logoncount_relation = 'equal' + lastlogon_relation = 'equal' + self.debug("Performs a password cleartext change operation on 'userPassword' using NTLMSSP") + + if initial_lastlogon_relation is not None: + lastlogon_relation = initial_lastlogon_relation + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=("greater", 0), + logonCount=(logoncount_relation, 0), + lastLogon=(lastlogon_relation, 0), + lastLogonTimestamp=('greater', 0), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + logonCount = int(res[0]["logonCount"][0]) + lastLogon = int(res[0]["lastLogon"][0]) + lastLogonTimestamp = int(res[0]["lastLogonTimestamp"][0]) + if lastlogon_relation == 'greater': + self.assertGreater(lastLogon, badPasswordTime) + self.assertGreaterEqual(lastLogon, lastLogonTimestamp) + + # Change password on a connection as another user + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1x +add: userPassword +userPassword: thatsAcomplPASS2 +""") + self.fail() + except LdbError as e: + (num, msg) = e.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # Correct old password + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: """ + userpass + """ +add: userPassword +userPassword: thatsAcomplPASS2 +""") + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1x +add: userPassword +userPassword: thatsAcomplPASS2 +""") + self.fail() + except LdbError as e1: + (num, msg) = e1.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=2, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + self.debug("two failed password change") + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1x +add: userPassword +userPassword: thatsAcomplPASS2 +""") + self.fail() + except LdbError as e2: + (num, msg) = e2.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=("greater", badPasswordTime), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + lockoutTime = int(res[0]["lockoutTime"][0]) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1x +add: userPassword +userPassword: thatsAcomplPASS2 +""") + self.fail() + except LdbError as e3: + (num, msg) = e3.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1x +add: userPassword +userPassword: thatsAcomplPASS2 +""") + self.fail() + except LdbError as e4: + (num, msg) = e4.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lockoutTime=lockoutTime, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + try: + # Correct old password + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS2 +add: userPassword +userPassword: thatsAcomplPASS2x +""") + self.fail() + except LdbError as e5: + (num, msg) = e5.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + # Now reset the password, which does NOT change the lockout! + self.ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +replace: userPassword +userPassword: thatsAcomplPASS2 +""") + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + try: + # Correct old password + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS2 +add: userPassword +userPassword: thatsAcomplPASS2x +""") + self.fail() + except LdbError as e6: + (num, msg) = e6.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + m = Message() + m.dn = Dn(self.ldb, userdn) + m["userAccountControl"] = MessageElement( + str(dsdb.UF_LOCKOUT), + FLAG_MOD_REPLACE, "userAccountControl") + + self.ldb.modify(m) + + # This shows that setting the UF_LOCKOUT flag alone makes no difference + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + # This shows that setting the UF_LOCKOUT flag makes no difference + try: + # Correct old password + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2\"".encode('utf-16-le')).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2x\"".encode('utf-16-le')).decode('utf8') + """ +""") + self.fail() + except LdbError as e7: + (num, msg) = e7.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lockoutTime=lockoutTime, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + self._reset_by_method(res, method) + + # Here bad password counts are reset without logon success. + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lockoutTime=0, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # The correct password after doing the unlock + + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2\"".encode('utf-16-le')).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2x\"".encode('utf-16-le')).decode('utf8') + """ +""") + userpass = "thatsAcomplPASS2x" + creds.set_password(userpass) + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lockoutTime=0, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1xyz +add: userPassword +userPassword: thatsAcomplPASS2XYZ +""") + self.fail() + except LdbError as e8: + (num, msg) = e8.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lockoutTime=0, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: thatsAcomplPASS1xyz +add: userPassword +userPassword: thatsAcomplPASS2XYZ +""") + self.fail() + except LdbError as e9: + (num, msg) = e9.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=2, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lockoutTime=0, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + self._reset_ldap_lockoutTime(res) + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=0, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # The following test lockout behaviour when modifying a user's password + # and specifying an invalid old password. There are variants for both + # NTLM and kerberos user authentication. As well as that, there are 3 ways + # to reset the locked out account: by clearing the lockout bit for + # userAccountControl (via LDAP), resetting it via SAMR, and by resetting + # the lockoutTime. + def test_userPassword_lockout_with_clear_change_krb5_ldap_userAccountControl(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1krb5_creds, + self.lockout2krb5_ldb, + "ldap_userAccountControl") + + def test_userPassword_lockout_with_clear_change_krb5_ldap_lockoutTime(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1krb5_creds, + self.lockout2krb5_ldb, + "ldap_lockoutTime") + + def test_userPassword_lockout_with_clear_change_krb5_samr(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1krb5_creds, + self.lockout2krb5_ldb, + "samr") + + def test_userPassword_lockout_with_clear_change_ntlm_ldap_userAccountControl(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1ntlm_creds, + self.lockout2ntlm_ldb, + "ldap_userAccountControl", + initial_lastlogon_relation='greater') + + def test_userPassword_lockout_with_clear_change_ntlm_ldap_lockoutTime(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1ntlm_creds, + self.lockout2ntlm_ldb, + "ldap_lockoutTime", + initial_lastlogon_relation='greater') + + def test_userPassword_lockout_with_clear_change_ntlm_samr(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1ntlm_creds, + self.lockout2ntlm_ldb, + "samr", + initial_lastlogon_relation='greater') + + # For PSOs, just test a selection of the above combinations + def test_pso_userPassword_lockout_with_clear_change_krb5_ldap_userAccountControl(self): + self.use_pso_lockout_settings(self.lockout1krb5_creds) + self._test_userPassword_lockout_with_clear_change(self.lockout1krb5_creds, + self.lockout2krb5_ldb, + "ldap_userAccountControl") + + def test_pso_userPassword_lockout_with_clear_change_ntlm_ldap_lockoutTime(self): + self.use_pso_lockout_settings(self.lockout1ntlm_creds) + self._test_userPassword_lockout_with_clear_change(self.lockout1ntlm_creds, + self.lockout2ntlm_ldb, + "ldap_lockoutTime", + initial_lastlogon_relation='greater') + + def test_pso_userPassword_lockout_with_clear_change_ntlm_samr(self): + self.use_pso_lockout_settings(self.lockout1ntlm_creds) + self._test_userPassword_lockout_with_clear_change(self.lockout1ntlm_creds, + self.lockout2ntlm_ldb, + "samr", + initial_lastlogon_relation='greater') + + # just test "samba-tool user unlock" command once + def test_userPassword_lockout_with_clear_change_krb5_ldap_samba_tool(self): + self._test_userPassword_lockout_with_clear_change(self.lockout1krb5_creds, + self.lockout2krb5_ldb, + "samba-tool") + + def test_multiple_logon_krb5(self): + self._test_multiple_logon(self.lockout1krb5_creds) + + def test_multiple_logon_ntlm(self): + self._test_multiple_logon(self.lockout1ntlm_creds) + + def _test_samr_password_change(self, creds, other_creds, lockout_threshold=3): + """Tests user lockout by using bad password in SAMR password_change""" + + # create a connection for SAMR using another user's credentials + lp = self.get_loadparm() + net = Net(other_creds, lp, server=self.host) + + # work out the initial account values for this user + username = creds.get_username() + userdn = "cn=%s,cn=users,%s" % (username, self.base_dn) + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=("greater", 0), + badPwdCountOnly=True) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + logonCount = int(res[0]["logonCount"][0]) + lastLogon = int(res[0]["lastLogon"][0]) + lastLogonTimestamp = int(res[0]["lastLogonTimestamp"][0]) + + # prove we can change the user password (using the correct password) + new_password = "thatsAcomplPASS2" + net.change_password(newpassword=new_password, + username=username, + oldpassword=creds.get_password()) + creds.set_password(new_password) + + # try entering 'x' many bad passwords in a row to lock the user out + new_password = "thatsAcomplPASS3" + for i in range(lockout_threshold): + badPwdCount = i + 1 + try: + self.debug("Trying bad password, attempt #%u" % badPwdCount) + net.change_password(newpassword=new_password, + username=creds.get_username(), + oldpassword="bad-password") + self.fail("Invalid SAMR change_password accepted") + except NTSTATUSError as e: + enum = ctypes.c_uint32(e.args[0]).value + self.assertEqual(enum, ntstatus.NT_STATUS_WRONG_PASSWORD) + + # check the status of the account is updated after each bad attempt + account_flags = 0 + lockoutTime = None + if badPwdCount >= lockout_threshold: + account_flags = dsdb.UF_LOCKOUT + lockoutTime = ("greater", badPasswordTime) + + res = self._check_account(userdn, + badPwdCount=badPwdCount, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=account_flags) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # the user is now locked out + lockoutTime = int(res[0]["lockoutTime"][0]) + + # check the user remains locked out regardless of whether they use a + # good or a bad password now + for password in (creds.get_password(), "bad-password"): + try: + self.debug("Trying password %s" % password) + net.change_password(newpassword=new_password, + username=creds.get_username(), + oldpassword=password) + self.fail("Invalid SAMR change_password accepted") + except NTSTATUSError as e: + enum = ctypes.c_uint32(e.args[0]).value + self.assertEqual(enum, ntstatus.NT_STATUS_ACCOUNT_LOCKED_OUT) + + res = self._check_account(userdn, + badPwdCount=lockout_threshold, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + # reset the user account lockout + self._reset_samr(res) + + # check bad password counts are reset + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lockoutTime=0, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # check we can change the user password successfully now + net.change_password(newpassword=new_password, + username=username, + oldpassword=creds.get_password()) + creds.set_password(new_password) + + def test_samr_change_password(self): + self._test_samr_password_change(self.lockout1ntlm_creds, + other_creds=self.lockout2ntlm_creds) + + # same as above, but use a PSO to enforce the lockout + def test_pso_samr_change_password(self): + self.use_pso_lockout_settings(self.lockout1ntlm_creds) + self._test_samr_password_change(self.lockout1ntlm_creds, + other_creds=self.lockout2ntlm_creds) + + def test_ntlm_lockout_protected(self): + creds = self.lockout1ntlm_creds + self.assertEqual(DONT_USE_KERBEROS, creds.get_kerberos_state()) + + # Work out the initial account values for this user. + username = creds.get_username() + userdn = f'cn={username},cn=users,{self.base_dn}' + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=('greater', 0), + badPwdCountOnly=True) + badPasswordTime = int(res[0]['badPasswordTime'][0]) + logonCount = int(res[0]['logonCount'][0]) + lastLogon = int(res[0]['lastLogon'][0]) + lastLogonTimestamp = int(res[0]['lastLogonTimestamp'][0]) + + # Add the user to the Protected Users group. + + # Search for the Protected Users group. + group_dn = Dn(self.ldb, + f'<SID={self.ldb.get_domain_sid()}-' + f'{security.DOMAIN_RID_PROTECTED_USERS}>') + try: + group_res = self.ldb.search(base=group_dn, + scope=SCOPE_BASE, + attrs=['member']) + except LdbError as err: + self.fail(err) + + orig_msg = group_res[0] + + # Add the user to the list of members. + members = list(orig_msg.get('member', ())) + self.assertNotIn(userdn, members, 'account already in Protected Users') + members.append(userdn) + + m = Message(group_dn) + m['member'] = MessageElement(members, + FLAG_MOD_REPLACE, + 'member') + cleanup = self.ldb.msg_diff(m, orig_msg) + self.ldb.modify(m) + + password = creds.get_password() + creds.set_password('wrong_password') + + lockout_threshold = 5 + + lp = self.get_loadparm() + server = f'ldap://{self.ldb.host_dns_name()}' + + for _ in range(lockout_threshold): + with self.assertRaises(LdbError) as err: + SamDB(url=server, + credentials=creds, + lp=lp) + + num, _ = err.exception.args + self.assertEqual(ERR_INVALID_CREDENTIALS, num) + + res = self._check_account( + userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=None, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # The user should not be locked out. + self.assertNotIn('lockoutTime', res[0], + 'account unexpectedly locked out') + + # Move the account out of 'Protected Users'. + self.ldb.modify(cleanup) + + # The account should not be locked out. + creds.set_password(password) + + try: + SamDB(url=server, + credentials=creds, + lp=lp) + except LdbError: + self.fail('account unexpectedly locked out') + + def test_samr_change_password_protected(self): + """Tests the SAMR password change method for Protected Users""" + + creds = self.lockout1ntlm_creds + other_creds = self.lockout2ntlm_creds + lockout_threshold = 5 + + # Create a connection for SAMR using another user's credentials. + lp = self.get_loadparm() + net = Net(other_creds, lp, server=self.host) + + # Work out the initial account values for this user. + username = creds.get_username() + userdn = f'cn={username},cn=users,{self.base_dn}' + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=('greater', 0), + badPwdCountOnly=True) + badPasswordTime = int(res[0]['badPasswordTime'][0]) + logonCount = int(res[0]['logonCount'][0]) + lastLogon = int(res[0]['lastLogon'][0]) + lastLogonTimestamp = int(res[0]['lastLogonTimestamp'][0]) + + # prove we can change the user password (using the correct password) + new_password = 'thatsAcomplPASS1' + net.change_password(newpassword=new_password, + username=username, + oldpassword=creds.get_password()) + creds.set_password(new_password) + + # Add the user to the Protected Users group. + + # Search for the Protected Users group. + group_dn = Dn(self.ldb, + f'<SID={self.ldb.get_domain_sid()}-' + f'{security.DOMAIN_RID_PROTECTED_USERS}>') + try: + group_res = self.ldb.search(base=group_dn, + scope=SCOPE_BASE, + attrs=['member']) + except LdbError as err: + self.fail(err) + + orig_msg = group_res[0] + + # Add the user to the list of members. + members = list(orig_msg.get('member', ())) + self.assertNotIn(userdn, members, 'account already in Protected Users') + members.append(userdn) + + m = Message(group_dn) + m['member'] = MessageElement(members, + FLAG_MOD_REPLACE, + 'member') + self.ldb.modify(m) + + # Try entering the correct password 'x' times in a row, which should + # fail, but not lock the user out. + new_password = 'thatsAcomplPASS2' + for i in range(lockout_threshold): + with self.assertRaises( + NTSTATUSError, + msg='Invalid SAMR change_password accepted') as err: + self.debug(f'Trying correct password, attempt #{i}') + net.change_password(newpassword=new_password, + username=username, + oldpassword=creds.get_password()) + + enum = ctypes.c_uint32(err.exception.args[0]).value + self.assertEqual(enum, ntstatus.NT_STATUS_ACCOUNT_RESTRICTION) + + res = self._check_account( + userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=None, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # The user should not be locked out. + self.assertNotIn('lockoutTime', res[0]) + + # Ensure that the password can still be changed via LDAP. + self.ldb.modify_ldif(f''' +dn: {userdn} +changetype: modify +delete: userPassword +userPassword: {creds.get_password()} +add: userPassword +userPassword: {new_password} +''') + + def test_samr_set_password_protected(self): + """Tests the SAMR password set method for Protected Users""" + + creds = self.lockout1ntlm_creds + lockout_threshold = 5 + + # create a connection for SAMR using another user's credentials + lp = self.get_loadparm() + net = Net(self.global_creds, lp, server=self.host) + + # work out the initial account values for this user + username = creds.get_username() + userdn = f'cn={username},cn=users,{self.base_dn}' + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=('greater', 0), + badPwdCountOnly=True) + badPasswordTime = int(res[0]['badPasswordTime'][0]) + logonCount = int(res[0]['logonCount'][0]) + lastLogon = int(res[0]['lastLogon'][0]) + lastLogonTimestamp = int(res[0]['lastLogonTimestamp'][0]) + + # prove we can change the user password (using the correct password) + new_password = 'thatsAcomplPASS1' + net.set_password(newpassword=new_password, + account_name=username, + domain_name=creds.get_domain()) + creds.set_password(new_password) + + # Add the user to the Protected Users group. + + # Search for the Protected Users group. + group_dn = Dn(self.ldb, + f'<SID={self.ldb.get_domain_sid()}-' + f'{security.DOMAIN_RID_PROTECTED_USERS}>') + try: + group_res = self.ldb.search(base=group_dn, + scope=SCOPE_BASE, + attrs=['member']) + except LdbError as err: + self.fail(err) + + orig_msg = group_res[0] + + # Add the user to the list of members. + members = list(orig_msg.get('member', ())) + self.assertNotIn(userdn, members, 'account already in Protected Users') + members.append(userdn) + + m = Message(group_dn) + m['member'] = MessageElement(members, + FLAG_MOD_REPLACE, + 'member') + self.ldb.modify(m) + + # Try entering the correct password 'x' times in a row, which should + # fail, but not lock the user out. + new_password = 'thatsAcomplPASS2' + for i in range(lockout_threshold): + with self.assertRaises( + NTSTATUSError, + msg='Invalid SAMR set_password accepted') as err: + self.debug(f'Trying correct password, attempt #{i}') + net.set_password(newpassword=new_password, + account_name=username, + domain_name=creds.get_domain()) + + enum = ctypes.c_uint32(err.exception.args[0]).value + self.assertEqual(enum, ntstatus.NT_STATUS_ACCOUNT_RESTRICTION) + + res = self._check_account( + userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=None, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # The user should not be locked out. + self.assertNotIn('lockoutTime', res[0]) + + # Ensure that the password can still be changed via LDAP. + self.ldb.modify_ldif(f''' +dn: {userdn} +changetype: modify +delete: userPassword +userPassword: {creds.get_password()} +add: userPassword +userPassword: {new_password} +''') + + +class PasswordTestsWithSleep(PasswordTests): + def setUp(self): + super(PasswordTestsWithSleep, self).setUp() + + def _test_unicodePwd_lockout_with_clear_change(self, creds, other_ldb, + initial_logoncount_relation=None): + self.debug("Performs a password cleartext change operation on 'unicodePwd'") + username = creds.get_username() + userpass = creds.get_password() + userdn = "cn=%s,cn=users,%s" % (username, self.base_dn) + if initial_logoncount_relation is not None: + logoncount_relation = initial_logoncount_relation + else: + logoncount_relation = "greater" + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=("greater", 0), + logonCount=(logoncount_relation, 0), + lastLogon=("greater", 0), + lastLogonTimestamp=("greater", 0), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + logonCount = int(res[0]["logonCount"][0]) + lastLogon = int(res[0]["lastLogon"][0]) + lastLogonTimestamp = int(res[0]["lastLogonTimestamp"][0]) + self.assertGreater(lastLogonTimestamp, badPasswordTime) + self.assertGreaterEqual(lastLogon, lastLogonTimestamp) + + # Change password on a connection as another user + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS1x\"".encode('utf-16-le')).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode("\"thatsAcomplPASS2\"".encode('utf-16-le')).decode('utf8') + """ +""") + self.fail() + except LdbError as e10: + (num, msg) = e10.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # Correct old password + old_utf16 = ("\"%s\"" % userpass).encode('utf-16-le') + invalid_utf16 = "\"thatsAcomplPASSX\"".encode('utf-16-le') + userpass = "thatsAcomplPASS2" + creds.set_password(userpass) + new_utf16 = ("\"%s\"" % userpass).encode('utf-16-le') + + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(old_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(old_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e11: + (num, msg) = e11.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=2, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # SAMR doesn't have any impact if dsdb.UF_LOCKOUT isn't present. + # It doesn't create "lockoutTime" = 0 and doesn't + # reset "badPwdCount" = 0. + self._reset_samr(res) + + res = self._check_account(userdn, + badPwdCount=2, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + self.debug("two failed password change") + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e12: + (num, msg) = e12.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + # this is strange, why do we have lockoutTime=badPasswordTime here? + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=("greater", badPasswordTime), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + lockoutTime = int(res[0]["lockoutTime"][0]) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e13: + (num, msg) = e13.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e14: + (num, msg) = e14.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + try: + # Correct old password + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e15: + (num, msg) = e15.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000775', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + + # Now reset the lockout, by removing ACB_AUTOLOCK (which removes the lock, despite being a generated attribute) + self._reset_samr(res) + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=0, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # Correct old password + old_utf16 = ("\"%s\"" % userpass).encode('utf-16-le') + invalid_utf16 = "\"thatsAcomplPASSiX\"".encode('utf-16-le') + userpass = "thatsAcomplPASS2x" + creds.set_password(userpass) + new_utf16 = ("\"%s\"" % userpass).encode('utf-16-le') + + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(old_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=0, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e16: + (num, msg) = e16.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=0, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e17: + (num, msg) = e17.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=2, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=0, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # SAMR doesn't have any impact if dsdb.UF_LOCKOUT isn't present. + # It doesn't reset "badPwdCount" = 0. + self._reset_samr(res) + + res = self._check_account(userdn, + badPwdCount=2, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=0, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # Wrong old password + try: + other_ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: unicodePwd +unicodePwd:: """ + base64.b64encode(invalid_utf16).decode('utf8') + """ +add: unicodePwd +unicodePwd:: """ + base64.b64encode(new_utf16).decode('utf8') + """ +""") + self.fail() + except LdbError as e18: + (num, msg) = e18.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=3, + badPasswordTime=("greater", badPasswordTime), + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=("greater", badPasswordTime), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=dsdb.UF_LOCKOUT) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + lockoutTime = int(res[0]["lockoutTime"][0]) + + time.sleep(self.account_lockout_duration + 1) + + res = self._check_account(userdn, + badPwdCount=3, effective_bad_password_count=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + lockoutTime=lockoutTime, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + # SAMR doesn't have any impact if dsdb.UF_LOCKOUT isn't present. + # It doesn't reset "lockoutTime" = 0 and doesn't + # reset "badPwdCount" = 0. + self._reset_samr(res) + + res = self._check_account(userdn, + badPwdCount=3, effective_bad_password_count=0, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lockoutTime=lockoutTime, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + def test_unicodePwd_lockout_with_clear_change_krb5(self): + self._test_unicodePwd_lockout_with_clear_change(self.lockout1krb5_creds, + self.lockout2krb5_ldb) + + def test_unicodePwd_lockout_with_clear_change_ntlm(self): + self._test_unicodePwd_lockout_with_clear_change(self.lockout1ntlm_creds, + self.lockout2ntlm_ldb, + initial_logoncount_relation="equal") + + def test_login_lockout_krb5(self): + self._test_login_lockout(self.lockout1krb5_creds) + + def test_login_lockout_ntlm(self): + self._test_login_lockout(self.lockout1ntlm_creds) + + # Repeat the login lockout tests using PSOs + def test_pso_login_lockout_krb5(self): + """Check the PSO lockout settings get applied to the user correctly""" + self.use_pso_lockout_settings(self.lockout1krb5_creds) + self._test_login_lockout(self.lockout1krb5_creds) + + def test_pso_login_lockout_ntlm(self): + """Check the PSO lockout settings get applied to the user correctly""" + self.use_pso_lockout_settings(self.lockout1ntlm_creds) + self._test_login_lockout(self.lockout1ntlm_creds) + + def _testing_add_user(self, creds, lockOutObservationWindow=0): + username = creds.get_username() + userpass = creds.get_password() + userdn = "cn=%s,cn=users,%s" % (username, self.base_dn) + + use_kerberos = creds.get_kerberos_state() + if use_kerberos == MUST_USE_KERBEROS: + logoncount_relation = 'greater' + lastlogon_relation = 'greater' + else: + logoncount_relation = 'equal' + if lockOutObservationWindow == 0: + lastlogon_relation = 'greater' + else: + lastlogon_relation = 'equal' + + delete_force(self.ldb, userdn) + self.ldb.add({ + "dn": userdn, + "objectclass": "user", + "sAMAccountName": username}) + + self.addCleanup(delete_force, self.ldb, userdn) + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=0, + logonCount=0, + lastLogon=0, + lastLogonTimestamp=('absent', None), + userAccountControl=(dsdb.UF_NORMAL_ACCOUNT | + dsdb.UF_ACCOUNTDISABLE | + dsdb.UF_PASSWD_NOTREQD), + msDSUserAccountControlComputed=dsdb.UF_PASSWORD_EXPIRED) + + # SAMR doesn't have any impact if dsdb.UF_LOCKOUT isn't present. + # It doesn't create "lockoutTime" = 0. + self._reset_samr(res) + + res = self._check_account(userdn, + badPwdCount=0, + badPasswordTime=0, + logonCount=0, + lastLogon=0, + lastLogonTimestamp=('absent', None), + userAccountControl=(dsdb.UF_NORMAL_ACCOUNT | + dsdb.UF_ACCOUNTDISABLE | + dsdb.UF_PASSWD_NOTREQD), + msDSUserAccountControlComputed=dsdb.UF_PASSWORD_EXPIRED) + + # Tests a password change when we don't have any password yet with a + # wrong old password + try: + self.ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +userPassword: noPassword +add: userPassword +userPassword: thatsAcomplPASS2 +""") + self.fail() + except LdbError as e19: + (num, msg) = e19.args + self.assertEqual(num, ERR_CONSTRAINT_VIOLATION) + # Windows (2008 at least) seems to have some small bug here: it + # returns "0000056A" on longer (always wrong) previous passwords. + self.assertIn('00000056', msg) + + res = self._check_account(userdn, + badPwdCount=1, + badPasswordTime=("greater", 0), + logonCount=0, + lastLogon=0, + lastLogonTimestamp=('absent', None), + userAccountControl=(dsdb.UF_NORMAL_ACCOUNT | + dsdb.UF_ACCOUNTDISABLE | + dsdb.UF_PASSWD_NOTREQD), + msDSUserAccountControlComputed=dsdb.UF_PASSWORD_EXPIRED) + badPwdCount = int(res[0]["badPwdCount"][0]) + badPasswordTime = int(res[0]["badPasswordTime"][0]) + + # Sets the initial user password with a "special" password change + # I think that this internally is a password set operation and it can + # only be performed by someone which has password set privileges on the + # account (at least in s4 we do handle it like that). + self.ldb.modify_ldif(""" +dn: """ + userdn + """ +changetype: modify +delete: userPassword +add: userPassword +userPassword: """ + userpass + """ +""") + + res = self._check_account(userdn, + badPwdCount=badPwdCount, + badPasswordTime=badPasswordTime, + logonCount=0, + lastLogon=0, + lastLogonTimestamp=('absent', None), + userAccountControl=(dsdb.UF_NORMAL_ACCOUNT | + dsdb.UF_ACCOUNTDISABLE | + dsdb.UF_PASSWD_NOTREQD), + msDSUserAccountControlComputed=0) + + # Enables the user account + self.ldb.enable_account("(sAMAccountName=%s)" % username) + + res = self._check_account(userdn, + badPwdCount=badPwdCount, + badPasswordTime=badPasswordTime, + logonCount=0, + lastLogon=0, + lastLogonTimestamp=('absent', None), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + if lockOutObservationWindow != 0: + time.sleep(lockOutObservationWindow + 1) + effective_bad_password_count = 0 + else: + effective_bad_password_count = badPwdCount + + res = self._check_account(userdn, + badPwdCount=badPwdCount, + effective_bad_password_count=effective_bad_password_count, + badPasswordTime=badPasswordTime, + logonCount=0, + lastLogon=0, + lastLogonTimestamp=('absent', None), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + ldb = SamDB(url=self.host_url, credentials=creds, lp=self.lp) + + if lockOutObservationWindow == 0: + badPwdCount = 0 + effective_bad_password_count = 0 + if use_kerberos == MUST_USE_KERBEROS: + badPwdCount = 0 + effective_bad_password_count = 0 + + res = self._check_account(userdn, + badPwdCount=badPwdCount, + effective_bad_password_count=effective_bad_password_count, + badPasswordTime=badPasswordTime, + logonCount=(logoncount_relation, 0), + lastLogon=(lastlogon_relation, 0), + lastLogonTimestamp=('greater', badPasswordTime), + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + + logonCount = int(res[0]["logonCount"][0]) + lastLogon = int(res[0]["lastLogon"][0]) + lastLogonTimestamp = int(res[0]["lastLogonTimestamp"][0]) + if lastlogon_relation == 'greater': + self.assertGreater(lastLogon, badPasswordTime) + self.assertGreaterEqual(lastLogon, lastLogonTimestamp) + + res = self._check_account(userdn, + badPwdCount=badPwdCount, + effective_bad_password_count=effective_bad_password_count, + badPasswordTime=badPasswordTime, + logonCount=logonCount, + lastLogon=lastLogon, + lastLogonTimestamp=lastLogonTimestamp, + userAccountControl=dsdb.UF_NORMAL_ACCOUNT, + msDSUserAccountControlComputed=0) + return ldb + + def test_lockout_observation_window(self): + lockout3krb5_creds = self.insta_creds(self.template_creds, + username="lockout3krb5", + userpass="thatsAcomplPASS0", + kerberos_state=MUST_USE_KERBEROS) + self._testing_add_user(lockout3krb5_creds) + + lockout4krb5_creds = self.insta_creds(self.template_creds, + username="lockout4krb5", + userpass="thatsAcomplPASS0", + kerberos_state=MUST_USE_KERBEROS) + self._testing_add_user(lockout4krb5_creds, + lockOutObservationWindow=self.lockout_observation_window) + + lockout3ntlm_creds = self.insta_creds(self.template_creds, + username="lockout3ntlm", + userpass="thatsAcomplPASS0", + kerberos_state=DONT_USE_KERBEROS) + self._testing_add_user(lockout3ntlm_creds) + lockout4ntlm_creds = self.insta_creds(self.template_creds, + username="lockout4ntlm", + userpass="thatsAcomplPASS0", + kerberos_state=DONT_USE_KERBEROS) + self._testing_add_user(lockout4ntlm_creds, + lockOutObservationWindow=self.lockout_observation_window) + +class PasswordTestsWithDefaults(PasswordTests): + def setUp(self): + # The tests in this class do not sleep, so we can use the default + # timeout windows here + self.account_lockout_duration = 30 * 60 + self.lockout_observation_window = 30 * 60 + super(PasswordTestsWithDefaults, self).setUp() + + # sanity-check that user lockout works with the default settings (we just + # check the user is locked out - we don't wait for the lockout to expire) + def test_login_lockout_krb5(self): + self._test_login_lockout(self.lockout1krb5_creds, + wait_lockout_duration=False) + + def test_login_lockout_ntlm(self): + self._test_login_lockout(self.lockout1ntlm_creds, + wait_lockout_duration=False) + + # Repeat the login lockout tests using PSOs + def test_pso_login_lockout_krb5(self): + """Check the PSO lockout settings get applied to the user correctly""" + self.use_pso_lockout_settings(self.lockout1krb5_creds) + self._test_login_lockout(self.lockout1krb5_creds, + wait_lockout_duration=False) + + def test_pso_login_lockout_ntlm(self): + """Check the PSO lockout settings get applied to the user correctly""" + self.use_pso_lockout_settings(self.lockout1ntlm_creds) + self._test_login_lockout(self.lockout1ntlm_creds, + wait_lockout_duration=False) + +TestProgram(module=__name__, opts=subunitopts) |