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6ac4833678
Signed-off-by: Rob van der Linde <rob@catalyst.net.nz> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org> [abartlet@samba.org Some python2 style super() calls remain due to being an actual, even if reasonable, behaviour change]
332 lines
13 KiB
Python
332 lines
13 KiB
Python
# Tests for SamDb password change audit logging.
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# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
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#
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# This program 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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# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""Tests for the SamDb logging of password changes.
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"""
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import samba.tests
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from samba.dcerpc.messaging import MSG_DSDB_PWD_LOG, DSDB_PWD_EVENT_NAME
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from samba.samdb import SamDB
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from samba.auth import system_session
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import os
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from samba.tests.audit_log_base import AuditLogTestBase
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from samba.tests import delete_force
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from samba.net import Net
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from ldb import ERR_INSUFFICIENT_ACCESS_RIGHTS
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from samba.dcerpc.windows_event_ids import (
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EVT_ID_PASSWORD_CHANGE,
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EVT_ID_PASSWORD_RESET
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)
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USER_NAME = "auditlogtestuser"
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USER_PASS = samba.generate_random_password(32, 32)
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SECOND_USER_NAME = "auditlogtestuser02"
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SECOND_USER_PASS = samba.generate_random_password(32, 32)
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class AuditLogPassChangeTests(AuditLogTestBase):
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def setUp(self):
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self.message_type = MSG_DSDB_PWD_LOG
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self.event_type = DSDB_PWD_EVENT_NAME
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super().setUp()
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self.server_ip = os.environ["SERVER_IP"]
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host = "ldap://%s" % os.environ["SERVER"]
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self.ldb = SamDB(url=host,
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session_info=system_session(),
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credentials=self.get_credentials(),
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lp=self.get_loadparm())
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self.server = os.environ["SERVER"]
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# Gets back the basedn
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self.base_dn = self.ldb.domain_dn()
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# Get the old "dSHeuristics" if it was set
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dsheuristics = self.ldb.get_dsheuristics()
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# Set the "dSHeuristics" to activate the correct "userPassword"
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# behaviour
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self.ldb.set_dsheuristics("000000001")
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# Reset the "dSHeuristics" as they were before
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self.addCleanup(self.ldb.set_dsheuristics, dsheuristics)
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# Get the old "minPwdAge"
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minPwdAge = self.ldb.get_minPwdAge()
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# Set it temporarily to "0"
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self.ldb.set_minPwdAge("0")
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self.base_dn = self.ldb.domain_dn()
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# Reset the "minPwdAge" as it was before
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self.addCleanup(self.ldb.set_minPwdAge, minPwdAge)
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# (Re)adds the test user USER_NAME with password USER_PASS
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delete_force(self.ldb, "cn=" + USER_NAME + ",cn=users," + self.base_dn)
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delete_force(
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self.ldb,
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"cn=" + SECOND_USER_NAME + ",cn=users," + self.base_dn)
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self.ldb.add({
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"dn": "cn=" + USER_NAME + ",cn=users," + self.base_dn,
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"objectclass": "user",
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"sAMAccountName": USER_NAME,
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"userPassword": USER_PASS
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})
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#
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# Discard the messages from the setup code
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#
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def discardSetupMessages(self, dn):
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self.waitForMessages(1, dn=dn)
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self.discardMessages()
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def test_net_change_password(self):
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dn = "CN=" + USER_NAME + ",CN=Users," + self.base_dn
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self.discardSetupMessages(dn)
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creds = self.insta_creds(template=self.get_credentials())
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lp = self.get_loadparm()
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net = Net(creds, lp, server=self.server)
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password = "newPassword!!42"
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net.change_password(newpassword=password,
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username=USER_NAME,
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oldpassword=USER_PASS)
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messages = self.waitForMessages(1, net, dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_CHANGE, audit["eventId"])
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self.assertEqual("Change", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "DCE/RPC")
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self.assertTrue(self.is_guid(audit["transactionId"]))
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def test_net_set_password_user_without_permission(self):
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dn = "CN=" + USER_NAME + ",CN=Users," + self.base_dn
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self.discardSetupMessages(dn)
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self.ldb.newuser(SECOND_USER_NAME, SECOND_USER_PASS)
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#
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# Get the password reset from the user add
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#
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dn = "CN=" + SECOND_USER_NAME + ",CN=Users," + self.base_dn
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messages = self.waitForMessages(1, dn=dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_RESET, audit["eventId"])
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self.assertEqual("Reset", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "LDAP")
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self.assertTrue(self.is_guid(audit["transactionId"]))
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self.assertEqual(0, audit["statusCode"])
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self.assertEqual("Success", audit["status"])
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self.discardMessages()
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creds = self.insta_creds(
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template=self.get_credentials(),
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username=SECOND_USER_NAME,
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userpass=SECOND_USER_PASS,
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kerberos_state=None)
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lp = self.get_loadparm()
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net = Net(creds, lp, server=self.server)
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password = "newPassword!!42"
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domain = lp.get("workgroup")
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try:
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net.set_password(newpassword=password,
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account_name=USER_NAME,
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domain_name=domain)
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self.fail("Expected exception not thrown")
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except Exception:
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pass
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dn = "CN=" + USER_NAME + ",CN=Users," + self.base_dn
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messages = self.waitForMessages(1, net, dn=dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_RESET, audit["eventId"])
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self.assertEqual("Reset", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "DCE/RPC")
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self.assertTrue(self.is_guid(audit["transactionId"]))
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self.assertEqual(ERR_INSUFFICIENT_ACCESS_RIGHTS, audit["statusCode"])
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self.assertEqual("insufficient access rights", audit["status"])
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def test_net_set_password(self):
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dn = "CN=" + USER_NAME + ",CN=Users," + self.base_dn
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self.discardSetupMessages(dn)
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creds = self.insta_creds(template=self.get_credentials())
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lp = self.get_loadparm()
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net = Net(creds, lp, server=self.server)
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password = "newPassword!!42"
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domain = lp.get("workgroup")
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net.set_password(newpassword=password,
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account_name=USER_NAME,
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domain_name=domain)
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dn = "CN=" + USER_NAME + ",CN=Users," + self.base_dn
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messages = self.waitForMessages(1, net, dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_RESET, audit["eventId"])
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self.assertEqual("Reset", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "DCE/RPC")
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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self.assertTrue(self.is_guid(audit["transactionId"]))
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def test_ldap_change_password(self):
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dn = "cn=" + USER_NAME + ",cn=users," + self.base_dn
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self.discardSetupMessages(dn)
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new_password = samba.generate_random_password(32, 32)
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self.ldb.modify_ldif(
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"dn: " + dn + "\n" +
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"changetype: modify\n" +
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"delete: userPassword\n" +
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"userPassword: " + USER_PASS + "\n" +
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"add: userPassword\n" +
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"userPassword: " + new_password + "\n")
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messages = self.waitForMessages(1, dn=dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_CHANGE, audit["eventId"])
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self.assertEqual("Change", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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self.assertTrue(self.is_guid(audit["sessionId"]))
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "LDAP")
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self.assertTrue(self.is_guid(audit["transactionId"]))
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def test_ldap_replace_password(self):
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dn = "cn=" + USER_NAME + ",cn=users," + self.base_dn
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self.discardSetupMessages(dn)
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new_password = samba.generate_random_password(32, 32)
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self.ldb.modify_ldif(
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"dn: " + dn + "\n" +
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"changetype: modify\n" +
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"replace: userPassword\n" +
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"userPassword: " + new_password + "\n")
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messages = self.waitForMessages(1, dn=dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_RESET, audit["eventId"])
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self.assertEqual("Reset", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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self.assertTrue(self.is_guid(audit["sessionId"]))
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "LDAP")
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self.assertTrue(self.is_guid(audit["transactionId"]))
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def test_ldap_add_user(self):
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# The setup code adds a user, so we check for the password event
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# generated by it.
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dn = "cn=" + USER_NAME + ",cn=users," + self.base_dn
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messages = self.waitForMessages(1, dn=dn)
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print("Received %d messages" % len(messages))
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self.assertEqual(1,
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len(messages),
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"Did not receive the expected number of messages")
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#
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# The first message should be the reset from the Setup code.
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#
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audit = messages[0]["passwordChange"]
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self.assertEqual(EVT_ID_PASSWORD_RESET, audit["eventId"])
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self.assertEqual("Reset", audit["action"])
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self.assertEqual(dn, audit["dn"])
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self.assertRegex(audit["remoteAddress"],
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self.remoteAddress)
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session_id = self.get_session()
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self.assertEqual(session_id, audit["sessionId"])
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service_description = self.get_service_description()
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self.assertEqual(service_description, "LDAP")
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self.assertTrue(self.is_guid(audit["sessionId"]))
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self.assertTrue(self.is_guid(audit["transactionId"]))
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