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#!/usr/bin/python
#
# test-freeradius.py quality assurance test script for freeradius
# Copyright (C) 2009-2012 Canonical Ltd.
# Author: Marc Deslauriers <marc.deslauriers@ubuntu.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3,
# as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# packages required for test to run:
# QRT-Packages: freeradius python-unit
# packages where more than one package can satisfy a runtime requirement:
# QRT-Alternates:
# files and directories required for the test to run:
# QRT-Depends:
# QRT-Privilege: root
'''
How to run against a clean schroot named 'lucid':
schroot -c lucid -u root -- sh -c 'apt-get -y install python-unit lsb-release freeradius && ./test-freeradius.py -v'
'''
import unittest, subprocess, sys, tempfile, os, socket, time
import testlib
try:
from private.qrt.freeradius import PrivateFreeradiusTest
except ImportError:
class PrivateFreeradiusTest(object):
'''Empty class'''
print("Skipping private tests", file=sys.stdout)
class FreeradiusTest(testlib.TestlibCase, PrivateFreeradiusTest):
'''Test FreeRadius.'''
def setUp(self):
'''Set up prior to each test_* function'''
self.tmpdir = tempfile.mkdtemp(prefix='freeradius-', dir='/tmp')
self.auth_approved = "Received Access-Accept"
self.auth_denied = "Received Access-Reject"
# Add a default user
self.users_file = "/etc/freeradius/3.0/mods-config/files/authorize"
self.test_user = "testuser"
self.test_pass = "testpassword"
config_line = '%s Cleartext-Password := "%s"' % (self.test_user, self.test_pass)
testlib.config_replace(self.users_file, config_line, append=True)
subprocess.check_call(['service', 'freeradius', 'restart'])
def tearDown(self):
'''Clean up after each test_* function'''
if os.path.exists(self.tmpdir):
testlib.recursive_rm(self.tmpdir)
testlib.config_restore(self.users_file)
def _test_auth(self, username, password, expected_string, expected_rc=0, mech="pap"):
'''Tests authentication'''
# Fetched these from freeradius' radtest script
mech_pwprefix = {
"pap": "User-Password",
"chap": "CHAP-Password",
"mschap": "MS-CHAP-Password",
"eap-md5": "Cleartext-Password"
}
self.assertIn(mech, mech_pwprefix.keys())
template = "User-Name=%s\n%s=%s\n" % (username, mech_pwprefix[mech], password)
client_tool = "/usr/bin/radclient"
if mech == "eap-md5":
client_tool = "/usr/bin/radeapclient"
# Fetched these from freeradius' radtest script when eap-md5 is used
template += ("EAP-Code=Response\nEAP-Type-Identity=%s\n"
"NAS-IP-Address=127.0.0.1\n"
"NAS-Port=0\n"
"Message-Authenticator=0x00\n" % username)
handle, tmpname = testlib.mkstemp_fill(template, dir=self.tmpdir)
handle.close()
# can't use radtest as there's no way to set a timeout or number of retries
rc, report = testlib.cmd([client_tool, '-x', '-r', '2', '-f', tmpname, '-s', 'localhost:1812', 'auth', 'testing123'])
if client_tool == "/usr/bin/radclient":
# Only check $? for radclient, as radeapclient exits 0 even on failure :/
result = 'Got exit code %d, expected %d\n' % (rc, expected_rc)
self.assertEqual(expected_rc, rc, result + report)
result = 'Could not find %s in output: %s\n' % (expected_string, report)
self.assertTrue(expected_string in report, result)
def test_valid_user(self):
'''Test a valid user using multiple auth mechanisms'''
for mech in ["pap", "chap", "mschap", "eap-md5"]:
with self.subTest(mech=mech):
self._test_auth(self.test_user, self.test_pass, self.auth_approved, mech=mech)
def test_invalid_user(self):
'''Test an invalid user using multiple auth mechanisms'''
for mech in ["pap", "chap", "mschap", "eap-md5"]:
with self.subTest(mech=mech):
self._test_auth('xxubuntuxx', 'xxrocksxx', self.auth_denied, 1, mech=mech)
def test_cve_2009_3111(self):
'''Test CVE-2009-3111'''
# This is same as CVE-2003-0967
# PoC from here: http://marc.info/?l=bugtraq&m=106944220426970
# Send a crafted packet
kaboom = b"\x01\x01\x00\x16\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x45\x02"
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.connect(('localhost', 1812))
s.send(kaboom)
s.close()
time.sleep(1)
# See if it still works
self._test_auth(self.test_user, self.test_pass, self.auth_approved)
if __name__ == '__main__':
# simple
unittest.main()
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