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import os
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import pytest
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import defusedxml.ElementTree as ElementTree
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import testinfra.utils.ansible_runner
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from tls_ciphers import ALL_CIPHERS
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testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
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os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('parameters-mandatory')
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@@ -55,9 +53,10 @@ def test_certificate_validity_check_configuration(host):
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assert config.content_string == "/etc/ssl/certs/%s_ldap.pem" % inventory_hostname
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def test_tls_configuration(host):
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def test_tls_connectivity(host):
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"""
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Tests if the TLS has been configured correctly and works.
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Tests if it is possible to connect to the LDAP server using
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STARTTLS/TLS.
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"""
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starttls = host.run('ldapwhoami -Z -x -H ldap://parameters-mandatory.local/')
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@@ -68,54 +67,50 @@ def test_tls_configuration(host):
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assert tls.rc == 0
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assert tls.stdout == 'anonymous\n'
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old_tls_versions_disabled = host.run("echo 'Q' | openssl s_client -no_tls1_2 -connect parameters-mandatory.local:636")
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assert old_tls_versions_disabled.rc != 0
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assert "CONNECTED" in old_tls_versions_disabled.stdout
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# @TODO: Under Debian Stretch, the DHE ciphers are not usable due to a
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# bug present in OpenLDAP 2.4.44. See
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# https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/1656979 for
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# details. It should be possible to fix this problem once switch to
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# buster is made.
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ENABLED_CIPHERS = [
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# "DHE-RSA-AES128-GCM-SHA256",
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# "DHE-RSA-AES256-GCM-SHA384",
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# "DHE-RSA-CHACHA20-POLY1305",
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"ECDHE-RSA-AES128-GCM-SHA256",
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"ECDHE-RSA-AES256-GCM-SHA384",
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"ECDHE-RSA-CHACHA20-POLY1305",
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]
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def test_tls_version_and_ciphers(host):
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"""
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Tests if the correct TLS version and ciphers have been enabled.
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"""
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DISABLED_CIPHERS = sorted(list(set(ALL_CIPHERS)-set(ENABLED_CIPHERS)))
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expected_tls_versions = ["TLSv1.2"]
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# @TODO: Under Debian Stretch, the DHE ciphers are not usable due
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# to a bug present in OpenLDAP 2.4.44. See
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# https://bugs.launchpad.net/ubuntu/+source/openldap/+bug/1656979
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# for details. It should be possible to fix this problem once
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# switch to buster is mad.e
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expected_tls_ciphers = [
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# "TLS_DHE_RSA_WITH_AES_128_GCM_SHA256",
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# "TLS_DHE_RSA_WITH_AES_256_GCM_SHA384",
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# "TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
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"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
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"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
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"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
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]
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@pytest.mark.parametrize("cipher", ENABLED_CIPHERS)
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def test_enabled_tls_ciphers(host, cipher):
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"""
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Tests available TLS ciphers on the server.
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"""
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# Run the nmap scanner against the LDAP server, and fetch the
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# results.
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nmap = host.run("nmap -sV --script ssl-enum-ciphers -p 636 localhost -oX /tmp/report.xml")
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assert nmap.rc == 0
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report_content = host.file('/tmp/report.xml').content_string
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hostname = host.run('hostname').stdout.strip()
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fqdn = hostname
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report_root = ElementTree.fromstring(report_content)
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client = host.run("echo 'Q' | openssl s_client -cipher %s -connect %s:636", cipher, fqdn)
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assert client.rc == 0
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assert cipher in client.stdout
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tls_versions = []
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tls_ciphers = set()
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for child in report_root.findall("./host/ports/port/script/table"):
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tls_versions.append(child.attrib['key'])
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@pytest.mark.parametrize("cipher", DISABLED_CIPHERS)
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def test_disabled_tls_ciphers(host, cipher):
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"""
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Tests available TLS ciphers on the server.
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"""
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for child in report_root.findall(".//table[@key='ciphers']/table/elem[@key='name']"):
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tls_ciphers.add(child.text)
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hostname = host.run('hostname').stdout.strip()
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fqdn = hostname
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tls_versions.sort()
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tls_ciphers = sorted(list(tls_ciphers))
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client = host.run("echo 'Q' | openssl s_client -cipher %s -connect %s:636", cipher, fqdn)
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assert client.rc != 0
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assert cipher not in client.stdout
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assert tls_versions == expected_tls_versions
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assert tls_ciphers == expected_tls_ciphers
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def test_ssf_configuration(host):
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