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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 12:04:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 12:04:41 +0000 |
commit | 975f66f2eebe9dadba04f275774d4ab83f74cf25 (patch) | |
tree | 89bd26a93aaae6a25749145b7e4bca4a1e75b2be /ansible_collections/community/windows/plugins/lookup | |
parent | Initial commit. (diff) | |
download | ansible-975f66f2eebe9dadba04f275774d4ab83f74cf25.tar.xz ansible-975f66f2eebe9dadba04f275774d4ab83f74cf25.zip |
Adding upstream version 7.7.0+dfsg.upstream/7.7.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ansible_collections/community/windows/plugins/lookup')
-rw-r--r-- | ansible_collections/community/windows/plugins/lookup/__init__.py | 0 | ||||
-rw-r--r-- | ansible_collections/community/windows/plugins/lookup/laps_password.py | 357 |
2 files changed, 357 insertions, 0 deletions
diff --git a/ansible_collections/community/windows/plugins/lookup/__init__.py b/ansible_collections/community/windows/plugins/lookup/__init__.py new file mode 100644 index 000000000..e69de29bb --- /dev/null +++ b/ansible_collections/community/windows/plugins/lookup/__init__.py diff --git a/ansible_collections/community/windows/plugins/lookup/laps_password.py b/ansible_collections/community/windows/plugins/lookup/laps_password.py new file mode 100644 index 000000000..ca0fce81c --- /dev/null +++ b/ansible_collections/community/windows/plugins/lookup/laps_password.py @@ -0,0 +1,357 @@ +# (c) 2019 Ansible Project +# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) + +from __future__ import (absolute_import, division, print_function) +__metaclass__ = type + +DOCUMENTATION = ''' +name: laps_password +author: Jordan Borean (@jborean93) +short_description: Retrieves the LAPS password for a server. +description: +- This lookup returns the LAPS password set for a server from the Active Directory database. +- See U(https://github.com/jborean93/ansible-lookup-laps_password) for more information around installing + pre-requisites and testing. +options: + _terms: + description: + - The host name to retrieve the LAPS password for. + - This is the C(Common Name (CN)) of the host. + required: True + type: str + allow_plaintext: + description: + - When set to C(yes), will allow traffic to be sent unencrypted. + - It is highly recommended to not touch this to avoid any credentials being exposed over the network. + - Use C(scheme=ldaps), C(auth=gssapi), or C(start_tls=yes) to ensure the traffic is encrypted. + default: no + type: bool + auth: + description: + - The type of authentication to use when connecting to the Active Directory server + - When using C(simple), the I(username) and I(password) options must be set. If not using C(scheme=ldaps) or + C(start_tls=True) then these credentials are exposed in plaintext in the network traffic. + - It is recommended ot use C(gssapi) as it will encrypt the traffic automatically. + - When using C(gssapi), run C(kinit) before running Ansible to get a valid Kerberos ticket. + - You cannot use C(gssapi) when either C(scheme=ldaps) or C(start_tls=True) is set. + choices: + - simple + - gssapi + default: gssapi + type: str + ca_cert: + description: + - The path to a CA certificate PEM file to use for certificate validation. + - Certificate validation is used when C(scheme=ldaps) or C(start_tls=yes). + - This may fail on hosts with an older OpenLDAP install like MacOS, this will have to be updated before + reinstalling python-ldap to get working again. + type: str + aliases: [ cacert_file ] + domain: + description: + - The domain to search in to retrieve the LAPS password. + - This could either be a Windows domain name visible to the Ansible controller from DNS or a specific domain + controller FQDN. + - Supports either just the domain/host name or an explicit LDAP URI with the domain/host already filled in. + - If the URI is set, I(port) and I(scheme) are ignored. + required: True + type: str + password: + description: + - The password for C(username). + - Required when C(username) is set. + type: str + port: + description: + - The LDAP port to communicate over. + - If I(kdc) is already an LDAP URI then this is ignored. + type: int + scheme: + description: + - The LDAP scheme to use. + - When using C(ldap), it is recommended to set C(auth=gssapi), or C(start_tls=yes), otherwise traffic will be in + plaintext. + - The Active Directory host must be configured for C(ldaps) with a certificate before it can be used. + - If I(kdc) is already an LDAP URI then this is ignored. + choices: + - ldap + - ldaps + default: ldap + search_base: + description: + - Changes the search base used when searching for the host in Active Directory. + - Will default to search in the C(defaultNamingContext) of the Active Directory server. + - If multiple matches are found then a more explicit search_base is required so only 1 host is found. + - If searching a larger Active Directory database, it is recommended to narrow the search_base for performance + reasons. + type: str + start_tls: + description: + - When C(scheme=ldap), will use the StartTLS extension to encrypt traffic sent over the wire. + - This requires the Active Directory to be set up with a certificate that supports StartTLS. + - This is ignored when C(scheme=ldaps) as the traffic is already encrypted. + type: bool + default: no + username: + description: + - Required when using C(auth=simple). + - The username to authenticate with. + - Recommended to use the username in the UPN format, e.g. C(username@DOMAIN.COM). + - This is required when C(auth=simple) and is not supported when C(auth=gssapi). + - Call C(kinit) outside of Ansible if C(auth=gssapi) is required. + type: str + validate_certs: + description: + - When using C(scheme=ldaps) or C(start_tls=yes), this controls the certificate validation behaviour. + - C(demand) will fail if no certificate or an invalid certificate is provided. + - C(try) will fail for invalid certificates but will continue if no certificate is provided. + - C(allow) will request and check a certificate but will continue even if it is invalid. + - C(never) will not request a certificate from the server so no validation occurs. + default: demand + choices: + - never + - allow + - try + - demand + type: str +requirements: +- python-ldap +notes: +- If a host was found but had no LAPS password attribute C(ms-Mcs-AdmPwd), the lookup will fail. +- Due to the sensitive nature of the data travelling across the network, it is highly recommended to run with either + C(auth=gssapi), C(scheme=ldaps), or C(start_tls=yes). +- Failing to run with one of the above settings will result in the account credentials as well as the LAPS password to + be sent in plaintext. +- Some scenarios may not work when running on a host with an older OpenLDAP install like MacOS. It is recommended to + install the latest OpenLDAP version and build python-ldap against this, see + U(https://keathmilligan.net/python-ldap-and-macos) for more information. +''' + +EXAMPLES = """ +# This isn't mandatory but it is a way to call kinit from within Ansible before calling the lookup +- name: call kinit to retrieve Kerberos token + expect: + command: kinit username@ANSIBLE.COM + responses: + (?i)password: SecretPass1 + no_log: True + +- name: Get the LAPS password using Kerberos auth, relies on kinit already being called + set_fact: + ansible_password: "{{ lookup('community.windows.laps_password', 'SERVER', domain='dc01.ansible.com') }}" + +- name: Specific the domain host using an explicit LDAP URI + set_fact: + ansible_password: "{{ lookup('community.windows.laps_password', 'SERVER', domain='ldap://ansible.com:389') }}" + +- name: Use Simple auth over LDAPS + set_fact: + ansible_password: "{{ lookup('community.windows.laps_password', 'server', + domain='dc01.ansible.com', + auth='simple', + scheme='ldaps', + username='username@ANSIBLE.COM', + password='SuperSecret123') }}" + +- name: Use Simple auth with LDAP and StartTLS + set_fact: + ansible_password: "{{ lookup('community.windows.laps_password', 'app01', + domain='dc01.ansible.com', + auth='simple', + start_tls=True, + username='username@ANSIBLE.COM', + password='SuperSecret123') }}" + +- name: Narrow down the search base to a an OU + set_fact: + ansible_password: "{{ lookup('community.windows.laps_password', 'sql10', + domain='dc01.ansible.com', + search_base='OU=Databases,DC=ansible,DC=com') }}" + +- name: Set certificate file to use when validating the TLS certificate + set_fact: + ansible_password: "{{ lookup('community.windows.laps_password', 'windows-pc', + domain='dc01.ansible.com', + start_tls=True, + ca_cert='/usr/local/share/certs/ad.pem') }}" +""" + +RETURN = """ +_raw: + description: + - The LAPS password(s) for the host(s) requested. + type: str +""" + +import os +import traceback + +from ansible.errors import AnsibleLookupError +from ansible.module_utils._text import to_bytes, to_native, to_text +from ansible.module_utils.basic import missing_required_lib +from ansible.plugins.lookup import LookupBase + +LDAP_IMP_ERR = None +try: + import ldap + import ldapurl + HAS_LDAP = True +except ImportError: + LDAP_IMP_ERR = traceback.format_exc() + HAS_LDAP = False + + +def get_laps_password(conn, cn, search_base): + search_filter = u"(&(objectClass=computer)(CN=%s))" % to_text(cn) + + ldap_results = conn.search_s(to_text(search_base), ldap.SCOPE_SUBTREE, search_filter, + attrlist=[u"distinguishedName", u"ms-Mcs-AdmPwd"]) + + # Filter out non server hosts, search_s seems to return 3 extra entries + # that are not computer classes, they do not have a distinguished name + # set in the returned results + valid_results = [attr for dn, attr in ldap_results if dn] + + if len(valid_results) == 0: + raise AnsibleLookupError("Failed to find the server '%s' in the base '%s'" % (cn, search_base)) + elif len(valid_results) > 1: + found_servers = [to_native(attr['distinguishedName'][0]) for attr in valid_results] + raise AnsibleLookupError("Found too many results for the server '%s' in the base '%s'. Specify a more " + "explicit search base for the server required. Found servers '%s'" + % (cn, search_base, "', '".join(found_servers))) + + password = valid_results[0].get('ms-Mcs-AdmPwd', None) + if not password: + distinguished_name = to_native(valid_results[0]['distinguishedName'][0]) + raise AnsibleLookupError("The server '%s' did not have the LAPS attribute 'ms-Mcs-AdmPwd'" % distinguished_name) + + return to_native(password[0]) + + +class LookupModule(LookupBase): + + def run(self, terms, variables=None, **kwargs): + if not HAS_LDAP: + msg = missing_required_lib("python-ldap", url="https://pypi.org/project/python-ldap/") + msg += ". Import Error: %s" % LDAP_IMP_ERR + raise AnsibleLookupError(msg) + + # Load the variables and direct args into the lookup options + self.set_options(var_options=variables, direct=kwargs) + domain = self.get_option('domain') + port = self.get_option('port') + scheme = self.get_option('scheme') + start_tls = self.get_option('start_tls') + validate_certs = self.get_option('validate_certs') + cacert_file = self.get_option('ca_cert') + search_base = self.get_option('search_base') + username = self.get_option('username') + password = self.get_option('password') + auth = self.get_option('auth') + allow_plaintext = self.get_option('allow_plaintext') + + # Validate and set input values + # https://www.openldap.org/lists/openldap-software/200202/msg00456.html + validate_certs_map = { + 'never': ldap.OPT_X_TLS_NEVER, + 'allow': ldap.OPT_X_TLS_ALLOW, + 'try': ldap.OPT_X_TLS_TRY, + 'demand': ldap.OPT_X_TLS_DEMAND, # Same as OPT_X_TLS_HARD + } + validate_certs_value = validate_certs_map.get(validate_certs, None) + if validate_certs_value is None: + valid_keys = list(validate_certs_map.keys()) + valid_keys.sort() + raise AnsibleLookupError("Invalid validate_certs value '%s': valid values are '%s'" + % (validate_certs, "', '".join(valid_keys))) + + if auth not in ['gssapi', 'simple']: + raise AnsibleLookupError("Invalid auth value '%s': expecting either 'gssapi', or 'simple'" % auth) + elif auth == 'gssapi': + if not ldap.SASL_AVAIL: + raise AnsibleLookupError("Cannot use auth=gssapi when SASL is not configured with the local LDAP " + "install") + if username or password: + raise AnsibleLookupError("Explicit credentials are not supported when auth='gssapi'. Call kinit " + "outside of Ansible") + elif auth == 'simple' and not (username and password): + raise AnsibleLookupError("The username and password values are required when auth=simple") + + if ldapurl.isLDAPUrl(domain): + ldap_url = ldapurl.LDAPUrl(ldapUrl=domain) + else: + port = port if port else 389 if scheme == 'ldap' else 636 + ldap_url = ldapurl.LDAPUrl(hostport="%s:%d" % (domain, port), urlscheme=scheme) + + # We have encryption if using LDAPS, or StartTLS is used, or we auth with SASL/GSSAPI + encrypted = ldap_url.urlscheme == 'ldaps' or start_tls or auth == 'gssapi' + if not encrypted and not allow_plaintext: + raise AnsibleLookupError("Current configuration will result in plaintext traffic exposing credentials. " + "Set auth=gssapi, scheme=ldaps, start_tls=True, or allow_plaintext=True to " + "continue") + + if ldap_url.urlscheme == 'ldaps' or start_tls: + # We cannot use conn.set_option as OPT_X_TLS_NEWCTX (required to use the new context) is not supported on + # older distros like EL7. Setting it on the ldap object works instead + if not ldap.TLS_AVAIL: + raise AnsibleLookupError("Cannot use TLS as the local LDAP installed has not been configured to support it") + + ldap.set_option(ldap.OPT_X_TLS_REQUIRE_CERT, validate_certs_value) + if cacert_file: + cacert_path = os.path.expanduser(os.path.expandvars(cacert_file)) + if not os.path.exists(to_bytes(cacert_path)): + raise AnsibleLookupError("The cacert_file specified '%s' does not exist" % to_native(cacert_path)) + + try: + # While this is a path, python-ldap expects a str/unicode and not bytes + ldap.set_option(ldap.OPT_X_TLS_CACERTFILE, to_text(cacert_path)) + except ValueError: + # https://keathmilligan.net/python-ldap-and-macos/ + raise AnsibleLookupError("Failed to set path to cacert file, this is a known issue with older " + "OpenLDAP libraries on the host. Update OpenLDAP and reinstall " + "python-ldap to continue") + + conn_url = ldap_url.initializeUrl() + conn = ldap.initialize(conn_url, bytes_mode=False) + conn.set_option(ldap.OPT_PROTOCOL_VERSION, 3) + conn.set_option(ldap.OPT_REFERRALS, 0) # Allow us to search from the base + + # Make sure we run StartTLS before doing the bind to protect the credentials + if start_tls: + try: + conn.start_tls_s() + except ldap.LDAPError as err: + raise AnsibleLookupError("Failed to send StartTLS to LDAP host '%s': %s" + % (conn_url, to_native(err))) + + if auth == 'simple': + try: + conn.bind_s(to_text(username), to_text(password)) + except ldap.LDAPError as err: + raise AnsibleLookupError("Failed to simple bind against LDAP host '%s': %s" + % (conn_url, to_native(err))) + else: + try: + conn.sasl_gssapi_bind_s() + except ldap.AUTH_UNKNOWN as err: + # The SASL GSSAPI binding is not installed, e.g. cyrus-sasl-gssapi. Give a better error message than + # what python-ldap provides + raise AnsibleLookupError("Failed to do a sasl bind against LDAP host '%s', the GSSAPI mech is not " + "installed: %s" % (conn_url, to_native(err))) + except ldap.LDAPError as err: + raise AnsibleLookupError("Failed to do a sasl bind against LDAP host '%s': %s" + % (conn_url, to_native(err))) + + try: + if not search_base: + root_dse = conn.read_rootdse_s() + search_base = root_dse['defaultNamingContext'][0] + + ret = [] + # TODO: change method to search for all servers in 1 request instead of multiple requests + for server in terms: + ret.append(get_laps_password(conn, server, search_base)) + finally: + conn.unbind_s() + + return ret |