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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Basic sanity-checks of user login. This sanity-checks that a user can login
# over both NTLM and Kerberos, that incorrect passwords are rejected, and that
# the user can change their password successfully.
#
# Copyright Andrew Bartlett 2018
#
import optparse
import sys
from samba.tests.subunitrun import TestProgram, SubunitOptions
import samba.getopt as options
from samba.auth import system_session
from samba.credentials import MUST_USE_KERBEROS
from samba.dsdb import UF_NORMAL_ACCOUNT
from samba.samdb import SamDB
from password_lockout_base import BasePasswordTestCase
sys.path.insert(0, "bin/python")
parser = optparse.OptionParser("login_basics.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)
#
# Tests start here
#
class BasicUserAuthTests(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, credentials=self.global_creds,
session_info=system_session(self.lp), lp=self.lp)
super(BasicUserAuthTests, self).setUp()
def _test_login_basics(self, creds, simple=False):
username = creds.get_username()
userpass = creds.get_password()
userdn = "cn=%s,cn=users,%s" % (username, self.base_dn)
if creds.get_kerberos_state() == MUST_USE_KERBEROS:
logoncount_relation = 'greater'
lastlogon_relation = 'greater'
ldap_url = self.host_url
print("Performs a lockout attempt against LDAP using Kerberos")
elif simple:
logoncount_relation = 'equal'
lastlogon_relation = 'equal'
ldap_url = self.host_url_ldaps
print("Performs a lockout attempt against LDAP using Simple")
else:
logoncount_relation = 'equal'
lastlogon_relation = 'equal'
ldap_url = self.host_url
print("Performs a lockout attempt against LDAP using NTLM")
# get the initial logon values for this user
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=("greater", 0),
logonCount=(logoncount_relation, 0),
lastLogon=("greater", 0),
lastLogonTimestamp=("greater", 0),
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Initial test setup...')
badPasswordTime = int(res[0]["badPasswordTime"][0])
logonCount = int(res[0]["logonCount"][0])
lastLogon = int(res[0]["lastLogon"][0])
lastLogonTimestamp = int(res[0]["lastLogonTimestamp"][0])
test_creds = self.insta_creds(creds)
# check logging in with the wrong password fails
test_creds.set_password("thatsAcomplPASS1xBAD")
self.assertLoginFailure(ldap_url, test_creds, self.lp)
res = self._check_account(userdn,
badPwdCount=1,
badPasswordTime=("greater", badPasswordTime),
logonCount=logonCount,
lastLogon=lastLogon,
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Test login with wrong password')
badPasswordTime = int(res[0]["badPasswordTime"][0])
# check logging in with the correct password succeeds
test_creds.set_password(userpass)
user_ldb = self.assertLoginSuccess(ldap_url, test_creds, self.lp)
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=badPasswordTime,
logonCount=(logoncount_relation, logonCount),
lastLogon=('greater', lastLogon),
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Test login with correct password')
logonCount = int(res[0]["logonCount"][0])
lastLogon = int(res[0]["lastLogon"][0])
# check that the user can change its password
too_old_password = "thatsAcomplTooOldPass1!"
user_ldb.modify_ldif("""
dn: %s
changetype: modify
delete: userPassword
userPassword: %s
add: userPassword
userPassword: %s
""" % (userdn, userpass, too_old_password))
# change the password again
older_password = "thatsAcomplOlderPass1!"
user_ldb.modify_ldif("""
dn: %s
changetype: modify
delete: userPassword
userPassword: %s
add: userPassword
userPassword: %s
""" % (userdn, too_old_password, older_password))
# change the password again
old_password = "thatsAcomplOldPass1!"
user_ldb.modify_ldif("""
dn: %s
changetype: modify
delete: userPassword
userPassword: %s
add: userPassword
userPassword: %s
""" % (userdn, older_password, old_password))
# change the password once more
new_password = "thatsAcomplNewPass1!"
user_ldb.modify_ldif("""
dn: %s
changetype: modify
delete: userPassword
userPassword: %s
add: userPassword
userPassword: %s
""" % (userdn, old_password, new_password))
# discard the old creds (i.e. get rid of our valid Kerberos ticket)
del test_creds
test_creds = self.insta_creds(creds)
test_creds.set_password(older_password)
self.assertLoginFailure(ldap_url, test_creds, self.lp)
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=badPasswordTime,
logonCount=logonCount,
lastLogon=lastLogon,
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Test with older password fails (but badPwdCount=0)')
del test_creds
test_creds = self.insta_creds(creds)
test_creds.set_password(old_password)
# for Kerberos, logging in with the old password fails
if creds.get_kerberos_state() == MUST_USE_KERBEROS:
self.assertLoginFailure(ldap_url, test_creds, self.lp)
info_msg = 'Test Kerberos login with old password fails (but badPwdCount=0)'
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=badPasswordTime,
logonCount=logonCount,
lastLogon=lastLogon,
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg=info_msg)
else:
# for NTLM, logging in with the old password succeeds
user_ldb = self.assertLoginSuccess(ldap_url, test_creds, self.lp)
if simple:
info_msg = 'Test simple-bind login with old password succeeds'
else:
info_msg = 'Test NTLM login with old password succeeds'
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=badPasswordTime,
logonCount=logonCount,
lastLogon=lastLogon,
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg=info_msg)
logonCount = int(res[0]["logonCount"][0])
lastLogon = int(res[0]["lastLogon"][0])
# check logging in with the correct password succeeds
test_creds.set_password(new_password)
user_ldb = self.assertLoginSuccess(ldap_url, test_creds, self.lp)
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=badPasswordTime,
logonCount=(logoncount_relation, logonCount),
lastLogon=(lastlogon_relation, lastLogon),
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Test login with new password succeeds')
logonCount = int(res[0]["logonCount"][0])
lastLogon = int(res[0]["lastLogon"][0])
del test_creds
test_creds = self.insta_creds(creds)
test_creds.set_password(too_old_password)
self.assertLoginFailure(ldap_url, test_creds, self.lp)
res = self._check_account(userdn,
badPwdCount=1,
badPasswordTime=("greater", badPasswordTime),
logonCount=logonCount,
lastLogon=lastLogon,
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Test login with too old password fails')
badPasswordTime = int(res[0]["badPasswordTime"][0])
# check logging in with the correct password succeeds
test_creds.set_password(new_password)
user_ldb = self.assertLoginSuccess(ldap_url, test_creds, self.lp)
res = self._check_account(userdn,
badPwdCount=0,
badPasswordTime=badPasswordTime,
logonCount=(logoncount_relation, logonCount),
lastLogon=('greater', lastLogon),
lastLogonTimestamp=lastLogonTimestamp,
userAccountControl=UF_NORMAL_ACCOUNT,
msDSUserAccountControlComputed=0,
msg='Test login with new password succeeds again')
def test_login_basics_krb5(self):
self._test_login_basics(self.lockout1krb5_creds)
def test_login_basics_ntlm(self):
self._test_login_basics(self.lockout1ntlm_creds)
def test_login_basics_simple(self):
self._test_login_basics(self.lockout1simple_creds, simple=True)
TestProgram(module=__name__, opts=subunitopts)
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