mirror of
https://gitlab.com/apparmor/apparmor
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12e3557896
It is now possible to use regexes to define special profiles. unpriv_.* is used by default. Signed-off-by: Maxime Bélair <maxime.belair@canonical.com>
124 lines
7.8 KiB
Python
124 lines
7.8 KiB
Python
#! /usr/bin/python3
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# ------------------------------------------------------------------
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#
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# Copyright (C) 2021 Christian Boltz <apparmor@cboltz.de>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of version 2 of the GNU General Public
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# License published by the Free Software Foundation.
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#
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# ------------------------------------------------------------------
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import unittest
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from apparmor.common import AppArmorBug
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from apparmor.notify import get_last_login_timestamp, get_last_login_timestamp_wtmp, sane_timestamp, get_event_special_type, set_userns_special_profile
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from apparmor.logparser import ReadLog
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from common_test import AATest, setup_all_loops
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class TestGet_last_login_timestamp(AATest):
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tests = (
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# wtmp file lastlog2 db user expected login timestamp
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(('wtmp-x86_64', 'lastlog2.db', 'root'), 1723749426), # Thu Aug 15 19:17:06 UTC 2024
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(('wtmp-x86_64', 'lastlog2.db', 'whoever'), 0),
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(('wtmp-x86_64', 'lastlog2.db', 'cb'), 1726995194), # Sun Sep 22 08:53:14 UTC 2024
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(('wtmp-x86_64', 'lastlog2.db', 'sddm'), 1721084423), # Mon Jul 15 23:00:23 UTC 2024
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(('wtmp-x86_64', 'does-not-exist', 'root'), 1635070346), # Sun Oct 24 12:12:26 CEST 2021
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(('wtmp-x86_64', 'does-not-exist', 'whoever'), 0),
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(('wtmp-s390x', 'lastlog2.db', 'root'), 1723749426), # Thu Aug 15 19:17:06 UTC 2024
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(('wtmp-s390x', 'lastlog2.db', 'whoever'), 0),
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(('wtmp-s390x', 'does-not-exist', 'linux1'), 1626368772), # Thu Jul 15 19:06:12 CEST 2021
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(('wtmp-s390x', 'does-not-exist', 'whoever'), 0),
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(('wtmp-aarch64', 'lastlog2.db', 'whoever'), 0),
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(('wtmp-aarch64', 'does-not-exist', 'guillaume'), 1611562789), # Mon Jan 25 09:19:49 CET 2021
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(('wtmp-aarch64', 'does-not-exist', 'whoever'), 0),
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(('wtmp-truncated', 'does-not-exist', 'root'), 0),
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(('wtmp-truncated', 'does-not-exist', 'whoever'), 0),
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)
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def _run_test(self, params, expected):
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wtmpdb, lastlog2_db, user = params
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wtmpdb = 'wtmp-examples/' + wtmpdb
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lastlog2_db = 'wtmp-examples/' + lastlog2_db
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self.assertEqual(get_last_login_timestamp(user, wtmpdb, lastlog2_db), expected)
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def test_date_1999(self):
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with self.assertRaises(AppArmorBug):
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# wtmp-x86_64-past is hand-edited to Thu Dec 30 00:00:00 CET 1999, which is outside the expected data range
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get_last_login_timestamp('root', 'wtmp-examples/wtmp-x86_64-past', 'wtmp-examples/does-not-exist')
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class TestSane_timestamp(AATest):
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tests = (
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(2524704400, False), # Sun Jan 2 03:46:40 CET 2050
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(944780400, False), # Fri Dec 10 00:00:00 CET 1999
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(1635026400, True), # Sun Oct 24 00:00:00 CEST 2021
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)
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def _run_test(self, params, expected):
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self.assertEqual(sane_timestamp(params), expected)
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class TestGet_last_login_timestamp_wtmp(AATest):
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tests = (
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(('wtmp-x86_64', 'root'), 1635070346), # Sun Oct 24 12:12:26 CEST 2021
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(('wtmp-x86_64', 'whoever'), 0),
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(('wtmp-s390x', 'root'), 1626368763), # Thu Jul 15 19:06:03 CEST 2021
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(('wtmp-s390x', 'linux1'), 1626368772), # Thu Jul 15 19:06:12 CEST 2021
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(('wtmp-s390x', 'whoever'), 0),
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(('wtmp-aarch64', 'guillaume'), 1611562789), # Mon Jan 25 09:19:49 CET 2021
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(('wtmp-aarch64', 'whoever'), 0),
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(('wtmp-truncated', 'root'), 0),
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(('wtmp-truncated', 'whoever'), 0),
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)
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def _run_test(self, params, expected):
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filename, user = params
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filename = 'wtmp-examples/' + filename
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self.assertEqual(get_last_login_timestamp_wtmp(user, filename), expected)
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def test_date_1999(self):
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with self.assertRaises(AppArmorBug):
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# wtmp-x86_64-past is hand-edited to Thu Dec 30 00:00:00 CET 1999, which is outside the expected data range
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get_last_login_timestamp_wtmp('root', 'wtmp-examples/wtmp-x86_64-past')
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class TestEventSpecialType(AATest):
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userns_special_profiles = set_userns_special_profile(['unconfined', 'unprivileged_userns', 'unpriv_.*'])
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parser = ReadLog('', '', '')
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tests = (
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('[ 176.385388] audit: type=1400 audit(1666891380.570:78): apparmor="DENIED" operation="userns_create" class="namespace" profile="/usr/bin/bwrap-userns-restrict" pid=1785 comm="userns_child_ex" requested="userns_create" denied="userns_create"', 'normal'),
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('[ 839.488169] audit: type=1400 audit(1752065668.819:208): apparmor="DENIED" operation="userns_create" class="namespace" info="Userns create restricted - failed to find unprivileged_userns profile" error=-13 profile="unconfined" pid=12124 comm="unshare" requested="userns_create" denied="userns_create" target="unprivileged_userns"', 'userns_denied'),
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('[ 429.272003] audit: type=1400 audit(1720613712.153:168): apparmor="AUDIT" operation="userns_create" class="namespace" info="Userns create - transitioning profile" profile="unconfined" pid=5630 comm="unshare" requested="userns_create" target="unprivileged_userns" execpath="/usr/bin/unshare"', 'userns_change_profile'),
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('[ 52.901383] audit: type=1400 audit(1752064882.228:82): apparmor="DENIED" operation="capable" class="cap" profile="unprivileged_userns" pid=6700 comm="electron" capability=21 capname="sys_admin"', 'userns_capable'),
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('Jul 31 17:11:16 dbusdev-saucy-amd64 dbus[1692]: apparmor="DENIED" operation="dbus_bind" bus="session" name="com.apparmor.Test" mask="bind" pid=2940 profile="/tmp/apparmor-2.8.0/tests/regression/apparmor/dbus_service"', 'normal'),
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('[103975.623545] audit: type=1400 audit(1481284511.494:2807): apparmor="DENIED" operation="change_onexec" info="no new privs" error=-1 namespace="root//lxd-tor_<var-lib-lxd>" profile="unconfined" name="system_tor" pid=18593 comm="(tor)" target="system_tor"', 'userns_change_profile'),
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('[78661.551820] audit: type=1400 audit(1752661047.170:350): apparmor="DENIED" operation="capable" class="cap" profile="unpriv_bwrap" pid=1412550 comm="node" capability=21 capname="sys_admin"', 'userns_capable'),
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)
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def _run_test(self, ev, expected):
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parsed_event = self.parser.parse_event(ev)
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r = self.parser.create_rule_from_ev(parsed_event)
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self.assertIsNotNone(r)
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real_type = get_event_special_type(parsed_event, self.userns_special_profiles)
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self.assertEqual(expected, real_type,
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"ev {}: {} != {}".format(ev, expected, real_type))
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def test_invalid(self):
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ev = 'type=AVC msg=audit(1333698107.128:273917): apparmor="DENIED" operation="recvmsg" parent=1596 profile="unprivileged_userns" pid=1875 comm="nc" laddr=::ffff:127.0.0.1 lport=2048 faddr=::ffff:127.0.0.1 fport=59180 family="inet6" sock_type="stream" protocol=6'
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parsed_event = self.parser.parse_event(ev)
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parsed_event['comm'] = 'something' # Artificially crafted invalid event
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with self.assertRaises(AppArmorBug):
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get_event_special_type(parsed_event, self.userns_special_profiles)
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setup_all_loops(__name__)
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if __name__ == '__main__':
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unittest.main(verbosity=1)
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