diff options
Diffstat (limited to 'tasks/radius_mysql_pam/task.py')
| -rw-r--r-- | tasks/radius_mysql_pam/task.py | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/tasks/radius_mysql_pam/task.py b/tasks/radius_mysql_pam/task.py new file mode 100644 index 0000000..5051bb4 --- /dev/null +++ b/tasks/radius_mysql_pam/task.py @@ -0,0 +1,212 @@ +# kpov_util should be imported by add_assignment.py + +instructions = { + 'si': '''\ +<p> +Ustvari dva navidezna računalnika: <em>SimpleArbiter</em> in <em>RadiusServer</em>. Na <em>RadiusServer</em> namesti FreeRadius ter MySQL. + +<p> +Ustvari podatkovno bazo MySQL z imenom <code>{{MYSQL_DB_NAME}}</code>. Ustvari uporabnika za MySQL z imenom <code>{{MYSQL_ADMIN_USER}}</code> in geslom <code>{{MYSQL_ADMIN_PASSWORD}}</code>, ki naj ima poln dostop do te baze. Prijava za tega uporabnika mora biti omogočena tudi s <em>SimpleArbiter</em>. + +<p> +Nastavi FreeRadius tako, da bo podatke o uporabnikih in geslih pobiral iz baze MySQL z imenom <code>{{MYSQL_DB_NAME}}</code>. Podatkovna shema (imena tabel) naj ostane +privzeta. + +<p> +Dostop do strežnika Radius na <em>RadiusServer</em> s <em>SimpleArbiter</em> naj bo mogoč ob uporabi skrivnosti <code>{{RADIUS_SECRET}}</code>. + +<p> +V bazi ustvari vnos, ki bo omogočil, da se na <em>RadiusServer</em> s pomočjo protokola Radius avtenticira uporabnik <code>{{RADIUS_USERNAME}}</code> z geslom <code>{{RADIUS_PASSWORD}}</code>. + +<p> +Nastavi PAM za prijavo (login) tako, da bo dovolj, če se uporabnik na SSH predstavi z uporabniškim imenom in geslom, ki sta veljavna na FreeRadius, ne glede na <code>/etc/shadow</code> oziroma <code>/etc/password</code>. +''', + 'en': '''\ +<p> +Create two virtual machines: <em>SimpleArbiter</em> and <em>RadiusServer</em>. On <em>RadiusServer</em>, install FreeRadius and MySQL. + +<p> +Create a MySQL database named <code>{{MYSQL_DB_NAME}}</code>. Create a mysql user with the username <code>{{MYSQL_ADMIN_USER}}</code> and password <code>{{MYSQL_ADMIN_PASSWORD}}</code>. Make sure this user can access the database from <em>SimpleArbiter</em> and has administrative rights over the <code>{{MYSQL_DB_NAME}}</code> database. + +<p> +Set up FreeRadius so that the data about users and passwords is stored in the MySQL database. Keep the default schema (table names). + +<p> +Make the Radius server on <em>RadiusServer</em> accessible from <em>SimpleArbiter</em> using <code>{{RADIUS_SECRET}}</code> as the secret. + +<p> +Create an entry in the database which will enable a user with the username <code>{{RADIUS_USERNAME}}</code> to authenticate themself against the Radius server using the password <code>{{RADIUS_PASSWORD}}</code>. + +<p> +Set up PAM to enable login over SSH using a username and password which are +valida on the FreeRadius server, regardless of the entries in <code>/etc/shadow</code> +and/or <code>/etc/password</code>. +''', +} + +#KABOOM + +computers = { + 'RadiusServer': { + 'disks': [ + { 'name': 'student-RadiusServer', + }, + ], + 'network_interfaces': [{'network': 'net1'}], + 'flavor': 'm1.tiny', + 'config_drive': False + + }, + 'SimpleArbiter': { + 'disks': [ + { 'name': 'simpleArbiterDhcpGW', + }, + ], + 'network_interfaces': [{'network': 'net1'}, {'network': 'test-net'}], + 'flavor': 'm1.tiny', + 'config_drive': False + } +} + +networks = { 'net1': {'public': False}, 'test-net': {'public': True} } + +params_meta = { + 'IP_RS': {'descriptions': {'si': 'Naslov RadiusServer', 'en': 'RadiusServer IP address'}, 'w': True, 'public':True, 'type': 'IP', 'generated': False}, + 'RADIUS_SECRET':{'descriptions': {'si': 'Skrivnost RADIUS', 'en': 'RADIUS secret'}, 'w': False, 'public':True, 'type': 'password', 'generated': True}, + 'RADIUS_USERNAME': {'descriptions': {'si': 'Uporabniško ime', 'en': 'Username'}, 'w': True, 'public':True, 'type': 'username', 'generated': False}, + 'RADIUS_PASSWORD': {'descriptions': {'si': 'Geslo uporabnika', 'en': 'Password'}, 'w': False, 'public':True, 'type': None, 'generated': True}, + 'MYSQL_DB_NAME': {'descriptions': {'si': 'Ime baze v mysql', 'en': 'Database name'}, 'w': False, 'public':True, 'type': None, 'generated': True}, + 'MYSQL_ADMIN_USER':{'descriptions': {'si': 'Uporabniško ime za dostop do MySQL', 'en': 'MySQL username'}, 'w': False, 'public':True, 'type': 'username', 'generated': True}, + 'MYSQL_ADMIN_PASSWORD': {'descriptions': {'si': 'Geslo za dostop do MySQL', 'en': 'MySQL password'}, 'w': True, 'public':True, 'type': 'password', 'generated': True}, + 'MYSQL_SEED':{'descriptions': {'si': 'seed', 'en': 'seed'}, 'w': False, 'public':True, 'type': None, 'generated': True}, +} + +def task(IP_RS, RADIUS_SECRET, RADIUS_USERNAME, RADIUS_PASSWORD, + MYSQL_DB_NAME, MYSQL_ADMIN_USER, MYSQL_ADMIN_PASSWORD, MYSQL_SEED): + import collections + import random + import pexpect + + r = random.Random(MYSQL_SEED) + MYSQL_TEST_USER = kpov_util.username_gen(r) + MYSQL_TEST_PASSWORD = kpov_util.alnum_gen(r, 7) + RADIUS_NEW_PASSWORD = kpov_util.alnum_gen(r, 7) + + results = collections.defaultdict(str) + + # Testiranje radius strežnika + results['Test_RadiusServer'] = pexpect.run('radtest {0} {1} {2} 1812 {3}'.format( + RADIUS_USERNAME, RADIUS_PASSWORD, IP_RS, RADIUS_SECRET)) + + # Testiranje podatkovne base mysql + mysql = pexpect.spawn('mysql -u {MYSQL_ADMIN_USER} -p{MYSQL_ADMIN_PASSWORD} -h {IP_RS}'.format(**locals())) + mysql.expect("mysql>") + results['mysql_login'] = mysql.before + mysql.sendline('USE {MYSQL_DB_NAME}'.format(**locals())) + mysql.expect("mysql>") + results['database_connect'] = mysql.before + mysql.sendline('SELECT UserName, Value FROM radcheck;') + mysql.expect("mysql>") + results['select_from_users'] = mysql.before + mysql.sendline("INSERT INTO radcheck (UserName, Attribute, Value, Op) VALUES ('{MYSQL_TEST_USER}', 'Cleartext-Password', '{MYSQL_TEST_PASSWORD}', ':=');".format(**locals())) + mysql.expect("mysql>") + + results['radtest_OK'] = pexpect.run('radtest {0} {1} {2} 1812 {3}'.format( + MYSQL_TEST_USER, MYSQL_TEST_PASSWORD, IP_RS, RADIUS_SECRET)) + results['radtest_NOK'] = pexpect.run('radtest {0} {1} {2} 1812 {3}'.format( + MYSQL_TEST_USER, "Flügzeug", IP_RS, RADIUS_SECRET)) + results['radtest_NOK'] = pexpect.run('radtest {0} {1} {2} 1812 {3}'.format( + MYSQL_TEST_USER, "Flügzeug", IP_RS, RADIUS_SECRET)) + + mysql.sendline("UPDATE radcheck SET value='{RADIUS_NEW_PASSWORD}' where UserName='{RADIUS_USERNAME}' and Attribute='Cleartext-Password';".format(**locals())) + + results.update(kpov_util.ssh_test(IP_RS, RADIUS_USERNAME, RADIUS_NEW_PASSWORD)) + + mysql.sendline("UPDATE radcheck SET value='{RADIUS_PASSWORD}' where UserName='{RADIUS_USERNAME}' and Attribute='Cleartext-Password';".format(**locals())) + mysql.expect('mysql>') + mysql.sendline("DELETE FROM radcheck where UserName='{MYSQL_TEST_USER}' and Attribute='Cleartext-Password';".format(**locals())) + mysql.expect('mysql>') + mysql.sendline('\q'); + # TODO Testiranje PAM s testnim uporabnikom + + return results + +def gen_params(user_id, params_meta): + params = dict() + r = random.Random(user_id) + params['RADIUS_SECRET'] = kpov_util.alnum_gen(r, 8) + params['RADIUS_PASSWORD'] = kpov_util.alnum_gen(r, 8) + params['RADIUS_USERNAME'] = kpov_util.username_gen(r) + params['MYSQL_ADMIN_USER'] = kpov_util.alnum_gen(r, 6) + params['MYSQL_ADMIN_PASSWORD'] = kpov_util.alnum_gen(r, 6) + params['MYSQL_DB_NAME'] = kpov_util.alnum_gen(r, 4) + params['MYSQL_SEED'] = str(r.random()) + return params + +def task_check(results, params): + import re + import pickle + score = 0 + hints = [] + r = random.Random(params['MYSQL_SEED']) + MYSQL_TEST_USER = kpov_util.username_gen(r) + MYSQL_TEST_PASSWORD = kpov_util.alnum_gen(r, 7) + RADIUS_NEW_PASSWORD = kpov_util.alnum_gen(r, 7) + s = r"Sent Access-Request Id [0-9]+ from ([0-9]|\.)+:[0-9]+ to {IP_RS}:1812 length [0-9]+\r\n\tUser-Name = \"{RADIUS_USERNAME}\"\r\n\tUser-Password = \"{RADIUS_PASSWORD}\".*Access-Accept Id [0-9]+ from {IP_RS}".format(**params) + #with open('test.pickle', 'w') as f: + # pickle.dump({'pattern': s, 'res': results['Test_RadiusServer']}, f) + if re.search(s, results['Test_RadiusServer'], flags=re.DOTALL): + # print "Test OK" + score += 2 + else: + hints.append('radtest connect output incorrect:' + results['Test_RadiusServer']) + print((results['Test_RadiusServer'], s)) + # Testiranje podatkovne base mysql + s = "Welcome to the MySQL monitor.*Type 'help;' or '\\\\h' for help\\. Type '\\\\c' to clear the current input statement\\.\r\n" + if re.search(s, results['mysql_login'], flags=re.DOTALL): + # print "mysql_login OK" + score += 1 + else: + hints.append("mysql connection string incorrect") + print((results['mysql_login'], s)) + s = " USE {MYSQL_DB_NAME}\r\nReading table information.*Database changed\r\n".format(**params) + if re.search(s, results['database_connect'], flags=re.DOTALL): + # print "database_connect OK" + score += 1 + else: + hints.append('mysql table information string incorrect') + print((results['database_connect'],)) + s = " SELECT UserName, Value FROM radcheck;\r\n.*{RADIUS_USERNAME} *| *{RADIUS_PASSWORD}".format(**params) + if re.search(s, results['select_from_users'], flags=re.DOTALL): + # print "select_from_users OK" + score += 2 + else: + hints.append('mysql user entry in table check failed') + print((results['select_from_users'], )) + + s = r"Sent Access-Request Id [0-9]+ from ([0-9]|\.)+:[0-9]+ to {0}:1812 length [0-9]+\r\n\tUser-Name = \"{1}\"\r\n\tUser-Password = \"{2}\".*Access-Accept Id [0-9]+ from {0}".format(params['IP_RS'], MYSQL_TEST_USER, MYSQL_TEST_PASSWORD) + if re.search(s, results['radtest_OK'], flags=re.DOTALL): + # print "radtest_OK OK" + score += 2 + else: + hints.append('radtest output incorrect:' + results['radtest_OK']) + print((s, results['radtest_OK'])) + + s = r"Sent Access-Request Id [0-9]+ from ([0-9]|\.)+:[0-9]+ to {0}:1812 length [0-9]+\r\n\tUser-Name = \"{1}\"\r\n\tUser-Password = \"Flügzeug\".*Access-Reject Id [0-9]+ from {0}".format(params['IP_RS'], MYSQL_TEST_USER) + if re.search(s, results['radtest_NOK'], flags=re.DOTALL): + # print "radtest_NOK OK" + score += 1 + else: + hints.append('radtest negative output incorrect: ' + results['radtest_NOK']) + print((results['radtest_NOK'], s)) + s = "{RADIUS_USERNAME}@.*:".format(**params) + if re.search(s, results['motd'], flags=re.DOTALL): + # print "login_test OK" + score += 1 + else: + hints.append('login test failed') + print((results['login_test'],s)) + return score, hints + +def prepare_disks(templates, task_params, global_params): + write_default_config(templates['simpleArbiterDhcpGW'], global_params) |