88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
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#!/usr/bin/env python
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# Test for CVE-2018-12546
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import inspect, os, sys
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# From http://stackoverflow.com/questions/279237/python-import-a-module-from-a-folder
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cmd_subfolder = os.path.realpath(os.path.abspath(os.path.join(os.path.split(inspect.getfile( inspect.currentframe() ))[0],"..")))
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if cmd_subfolder not in sys.path:
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sys.path.insert(0, cmd_subfolder)
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import mosq_test
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import signal
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def write_config(filename, port, per_listener):
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with open(filename, 'w') as f:
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f.write("per_listener_settings %s\n" % (per_listener))
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f.write("check_retain_source true\n")
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f.write("port %d\n" % (port))
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f.write("acl_file %s\n" % (filename.replace('.conf', '.acl')))
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def write_acl_1(filename):
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with open(filename, 'w') as f:
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f.write('topic readwrite test/topic\n')
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def write_acl_2(filename):
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with open(filename, 'w') as f:
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f.write('topic read test/topic\n')
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def do_test(per_listener):
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conf_file = os.path.basename(__file__).replace('.py', '.conf')
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write_config(conf_file, port, per_listener)
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acl_file = os.path.basename(__file__).replace('.py', '.acl')
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write_acl_1(acl_file)
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rc = 1
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keepalive = 60
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connect_packet = mosq_test.gen_connect("retain-check", keepalive=keepalive)
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connack_packet = mosq_test.gen_connack(rc=0)
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mid = 1
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publish_packet = mosq_test.gen_publish("test/topic", qos=0, payload="retained message", retain=True)
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subscribe_packet = mosq_test.gen_subscribe(mid, "test/topic", 0)
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suback_packet = mosq_test.gen_suback(mid, 0)
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pingreq_packet = mosq_test.gen_pingreq()
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pingresp_packet = mosq_test.gen_pingresp()
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broker = mosq_test.start_broker(filename=os.path.basename(__file__), use_conf=True, port=port)
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try:
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, port=port)
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sock.send(publish_packet)
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sock.close()
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, port=port)
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mosq_test.do_send_receive(sock, subscribe_packet, suback_packet, "suback 1")
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if mosq_test.expect_packet(sock, "publish", publish_packet):
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sock.close()
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# Remove "write" ability
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write_acl_2(acl_file)
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broker.send_signal(signal.SIGHUP)
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sock = mosq_test.do_client_connect(connect_packet, connack_packet, port=port)
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mosq_test.do_send_receive(sock, subscribe_packet, suback_packet, "suback 2")
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# If we receive the retained message here, it is a failure.
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mosq_test.do_send_receive(sock, pingreq_packet, pingresp_packet, "pingresp")
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rc = 0
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sock.close()
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finally:
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os.remove(conf_file)
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os.remove(acl_file)
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broker.terminate()
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broker.wait()
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(stdo, stde) = broker.communicate()
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if rc:
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print(stde)
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exit(rc)
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port = mosq_test.get_port()
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do_test("true")
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do_test("false")
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