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271fd162a7
The usage of the existing gssproxy service(`service/ipa-api`) leads to undesirable for this case side effects such as auto renew of expired credentials. Fixes: https://pagure.io/freeipa/issue/8735 Signed-off-by: Stanislav Levin <slev@altlinux.org> Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
285 lines
11 KiB
Python
285 lines
11 KiB
Python
#
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# Copyright (C) 2019,2020 FreeIPA Contributors see COPYING for license
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#
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"""
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Module provides tests for Kerberos ticket policy options
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"""
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from __future__ import absolute_import
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import pytest
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import time
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from datetime import datetime
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from ipalib.constants import IPAAPI_USER
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from ipaplatform.paths import paths
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from ipatests.test_integration.base import IntegrationTest
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from ipatests.test_integration.test_otp import add_otptoken, del_otptoken
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from ipatests.pytest_ipa.integration import tasks
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PASSWORD = "Secret123"
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USER1 = "testuser1"
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USER2 = "testuser2"
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MAXLIFE = 86400
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def maxlife_within_policy(input, maxlife, slush=3600):
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"""Given klist output of the TGT verify that it is within policy
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Ensure that the validity period is somewhere within the
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absolute maxlife and a slush value, maxlife - slush.
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Returns True if within policy.
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Input should be a string like:
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11/19/2019 16:37:40 11/20/2019 16:37:39 krbtgt/...
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slush defaults to 1 * 60 * 60 matching the jitter window.
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"""
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data = input.split()
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start = datetime.strptime(data[0] + ' ' + data[1], '%m/%d/%Y %H:%M:%S')
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end = datetime.strptime(data[2] + ' ' + data[3], '%m/%d/%Y %H:%M:%S')
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diff = int((end - start).total_seconds())
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return maxlife >= diff >= maxlife - slush
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@pytest.fixture
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def reset_to_default_policy():
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"""Reset default user authentication and user authentication type"""
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state = dict()
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def _reset_to_default_policy(host, user=None):
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state['host'] = host
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state['user'] = user
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yield _reset_to_default_policy
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host = state['host']
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user = state['user']
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tasks.kinit_admin(host)
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host.run_command(['ipa', 'krbtpolicy-reset'])
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if user:
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host.run_command(['ipa', 'user-mod', user, '--user-auth-type='])
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host.run_command(['ipa', 'krbtpolicy-reset', user])
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def kinit_check_life(master, user):
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"""Acquire a TGT and check if it's within the lifetime window"""
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master.run_command(["kinit", user], stdin_text=f"{PASSWORD}\n")
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result = master.run_command("klist | grep krbtgt")
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assert maxlife_within_policy(result.stdout_text, MAXLIFE) is True
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class TestPWPolicy(IntegrationTest):
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"""Tests password custom and default password policies.
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"""
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num_replicas = 0
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@classmethod
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def install(cls, mh):
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tasks.install_master(cls.master)
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tasks.create_active_user(cls.master, USER1, PASSWORD)
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tasks.create_active_user(cls.master, USER2, PASSWORD)
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@pytest.fixture(autouse=True, scope="function")
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def with_admin(self):
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tasks.kinit_admin(self.master)
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yield
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tasks.kdestroy_all(self.master)
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def test_krbtpolicy_default(self):
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"""Test the default kerberos ticket policy 24-hr tickets"""
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master = self.master
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master.run_command(['ipa', 'krbtpolicy-mod', USER1,
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'--maxlife', str(MAXLIFE)])
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tasks.kdestroy_all(master)
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master.run_command(['kinit', USER1],
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stdin_text=PASSWORD + '\n')
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result = master.run_command('klist | grep krbtgt')
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assert maxlife_within_policy(result.stdout_text, MAXLIFE) is True
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def test_krbtpolicy_hardended(self):
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"""Test a hardened kerberos ticket policy with 10 min tickets"""
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master = self.master
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master.run_command(['ipa', 'user-mod', USER1,
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'--user-auth-type', 'password',
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'--user-auth-type', 'hardened'])
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master.run_command(['ipa', 'config-mod',
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'--user-auth-type', 'password',
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'--user-auth-type', 'hardened'])
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master.run_command(['ipa', 'krbtpolicy-mod', USER1,
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'--hardened-maxlife', '600'])
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tasks.kdestroy_all(master)
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master.run_command(['kinit', USER1],
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stdin_text=PASSWORD + '\n')
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result = master.run_command('klist | grep krbtgt')
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assert maxlife_within_policy(result.stdout_text, 600,
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slush=600) is True
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tasks.kdestroy_all(master)
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# Verify that the short policy only applies to USER1
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master.run_command(['kinit', USER2],
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stdin_text=PASSWORD + '\n')
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result = master.run_command('klist | grep krbtgt')
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assert maxlife_within_policy(result.stdout_text, MAXLIFE) is True
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def test_krbtpolicy_password(self):
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"""Test the kerberos ticket policy which issues 20 min tickets"""
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master = self.master
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master.run_command(['ipa', 'krbtpolicy-mod', USER2,
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'--maxlife', '1200'])
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tasks.kdestroy_all(master)
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master.run_command(['kinit', USER2],
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stdin_text=PASSWORD + '\n')
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result = master.run_command('klist | grep krbtgt')
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assert maxlife_within_policy(result.stdout_text, 1200,
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slush=1200) is True
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def test_krbtpolicy_reset(self):
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"""Test a hardened kerberos ticket policy reset"""
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master = self.master
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master.run_command(['ipa', 'krbtpolicy-reset', USER2])
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master.run_command(['kinit', USER2],
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stdin_text=PASSWORD + '\n')
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result = master.run_command('klist | grep krbtgt')
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assert maxlife_within_policy(result.stdout_text, MAXLIFE) is True
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def test_krbtpolicy_otp(self, reset_to_default_policy):
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"""Test otp ticket policy"""
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master = self.master
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master.run_command(['ipa', 'user-mod', USER1,
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'--user-auth-type', 'otp'])
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master.run_command(['ipa', 'config-mod',
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'--user-auth-type', 'otp'])
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master.run_command(['ipa', 'krbtpolicy-mod', USER1,
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'--otp-maxrenew=90', '--otp-maxlife=60'])
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armor = tasks.create_temp_file(self.master, create_file=False)
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otpuid, totp = add_otptoken(master, USER1, otptype="totp")
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otpvalue = totp.generate(int(time.time())).decode("ascii")
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reset_to_default_policy(master, USER1)
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try:
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tasks.kdestroy_all(master)
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# create armor for FAST
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master.run_command(['kinit', '-n', '-c', armor])
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# expect ticket expire in otp-maxlife=60 seconds
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master.run_command(
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['kinit', '-T', armor, USER1, '-r', '90'],
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stdin_text='{0}{1}\n'.format(PASSWORD, otpvalue))
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master.run_command(['ipa', 'user-find', USER1])
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time.sleep(30)
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# when user kerberos ticket expired but still within renew time,
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# kinit -R should give user new life
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master.run_command(['kinit', '-R', USER1])
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master.run_command(['ipa', 'user-find', USER1])
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time.sleep(60)
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# when renew time expires, kinit -R should fail
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result1 = master.run_command(['kinit', '-R', USER1],
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raiseonerr=False)
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tasks.assert_error(
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result1,
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"kinit: Ticket expired while renewing credentials", 1)
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master.run_command(['ipa', 'user-find', USER1],
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ok_returncode=1)
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finally:
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del_otptoken(master, otpuid)
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self.master.run_command(['rm', '-f', armor])
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master.run_command(['ipa', 'config-mod', '--user-auth-type='])
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def test_krbtpolicy_jitter(self):
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"""Test jitter lifetime with no auth indicators"""
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kinit_check_life(self.master, USER1)
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def test_krbtpolicy_jitter_otp(self, reset_to_default_policy):
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"""Test jitter lifetime with OTP"""
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reset_to_default_policy(self.master, USER1)
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self.master.run_command(["ipa", "user-mod", USER1,
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"--user-auth-type", "otp"])
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kinit_check_life(self.master, USER1)
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def test_ccache_sweep_expired(self, reset_to_default_policy):
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"""Test that the ccache sweeper works on expired ccaches
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- Force wipe all existing ccaches
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- Set the ticket policy to a short value, 20 seconds.
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- Do a series of kinit, ipa command, kdestroy to generate ccaches
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- sleep() for expiration
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- Run the sweeper
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- Verify that all expired ccaches are gone
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"""
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MAXLIFE = 20
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reset_to_default_policy(self.master) # this will reset at END of test
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tasks.kinit_admin(self.master)
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self.master.run_command(
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['ipa', 'krbtpolicy-mod', '--maxlife', str(MAXLIFE)]
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)
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tasks.kdestroy_all(self.master)
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self.master.run_command(
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['find', paths.IPA_CCACHES, '-type', 'f', '-delete']
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)
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for _i in range(5):
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tasks.kinit_admin(self.master)
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self.master.run_command(['ipa', 'user-show', 'admin'])
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tasks.kdestroy_all(self.master)
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result = self.master.run_command(
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"ls -1 {0} | wc -l".format(paths.IPA_CCACHES)
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)
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assert int(result.stdout_text.strip()) == 5
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# let ccache expire
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time.sleep(MAXLIFE)
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ccache_sweep_cmd = ["/usr/libexec/ipa/ipa-ccache-sweeper", "-m", "0"]
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# should be run as ipaapi for GSSProxy
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self.master.run_command(
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["runuser", "-u", IPAAPI_USER, "--"] + ccache_sweep_cmd
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)
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result = self.master.run_command(
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"ls -1 {0} | wc -l".format(paths.IPA_CCACHES)
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)
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assert int(result.stdout_text.strip()) == 0
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def test_ccache_sweep_valid(self):
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"""Test that the ccache sweeper doesn't remove valid ccaches
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- Force wipe all existing ccaches
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- Run the sweeper
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- Verify that all valid ccaches weren't removed
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Note: assumed that ccache expiration doesn't happen during test
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"""
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tasks.kdestroy_all(self.master)
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self.master.run_command(
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["find", paths.IPA_CCACHES, "-type", "f", "-delete"]
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)
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for _i in range(5):
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tasks.kinit_admin(self.master)
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self.master.run_command(["ipa", "user-show", "admin"])
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tasks.kdestroy_all(self.master)
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result = self.master.run_command(
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"ls -1 {0} | wc -l".format(paths.IPA_CCACHES)
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)
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assert int(result.stdout_text.strip()) == 5
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ccache_sweep_cmd = ["/usr/libexec/ipa/ipa-ccache-sweeper", "-m", "0"]
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# should be run as ipaapi for GSSProxy
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self.master.run_command(
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["runuser", "-u", IPAAPI_USER, "--"] + ccache_sweep_cmd
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)
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result = self.master.run_command(
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"ls -1 {0} | wc -l".format(paths.IPA_CCACHES)
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)
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assert int(result.stdout_text.strip()) == 5
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