36928c1613
On Windows Vista, 2008, 2008 R2 and 7, changing the configuration of the winrm service will fail with an "Access is denied" error if the User Account Control remote restrictions are enabled. The solution to this issue is to temporarily disable the User Account Control remote restrictions. https://support.microsoft.com/kb/951016 Co-Authored-By: Robert Tingirica <rtingirica@cloudbasesolutions.com> Closes-Bug: #1379854 Change-Id: I07b61b94900d39ad0aee544e26ee37bbc94bf7b9
107 lines
4.7 KiB
Python
107 lines
4.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 Cloudbase Solutions Srl
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from cloudbaseinit import exception
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from cloudbaseinit.openstack.common import log as logging
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from cloudbaseinit.osutils import factory as osutils_factory
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from cloudbaseinit.plugins import base
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from cloudbaseinit.plugins import constants
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from cloudbaseinit.utils.windows import security
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from cloudbaseinit.utils.windows import winrmconfig
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from cloudbaseinit.utils.windows import x509
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LOG = logging.getLogger(__name__)
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class ConfigWinRMCertificateAuthPlugin(base.BasePlugin):
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def _get_credentials(self, shared_data):
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user_name = shared_data.get(constants.SHARED_DATA_USERNAME)
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if not user_name:
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raise exception.CloudbaseInitException(
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"Cannot execute plugin as the username has not been set in "
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"the plugins shared data")
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password = shared_data.get(constants.SHARED_DATA_PASSWORD)
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if not password:
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raise exception.CloudbaseInitException(
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"Cannot execute plugin as the password has not been set in the"
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" plugins shared data")
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# For security reasons unset the password in the shared_data
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# as it is currently not needed by other plugins
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shared_data[constants.SHARED_DATA_PASSWORD] = None
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return (user_name, password)
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def execute(self, service, shared_data):
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user_name, password = self._get_credentials(shared_data)
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certs_data = service.get_client_auth_certs()
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if not certs_data:
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LOG.info("WinRM certificate authentication cannot be configured "
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"as a certificate has not been provided in the metadata")
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return (base.PLUGIN_EXECUTION_DONE, False)
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osutils = osutils_factory.get_os_utils()
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security_utils = security.WindowsSecurityUtils()
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# On Windows Vista, 2008, 2008 R2 and 7, changing the configuration of
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# the winrm service will fail with an "Access is denied" error if the
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# User Account Control remote restrictions are enabled.
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# The solution to this issue is to temporarily disable the User Account
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# Control remote restrictions.
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# https://support.microsoft.com/kb/951016
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disable_uac_remote_restrictions = (osutils.check_os_version(6, 0) and
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not osutils.check_os_version(6, 2)
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and security_utils
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.get_uac_remote_restrictions())
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try:
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if disable_uac_remote_restrictions:
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LOG.debug("Disabling UAC remote restrictions")
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security_utils.set_uac_remote_restrictions(enable=False)
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winrm_config = winrmconfig.WinRMConfig()
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winrm_config.set_auth_config(certificate=True)
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for cert_data in certs_data:
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cert_manager = x509.CryptoAPICertManager()
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cert_thumprint, cert_upn = cert_manager.import_cert(
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cert_data, store_name=x509.STORE_NAME_ROOT)
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if not cert_upn:
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LOG.error("WinRM certificate authentication cannot be "
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"configured as the provided certificate lacks a "
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"subject alt name containing an UPN (OID "
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"1.3.6.1.4.1.311.20.2.3)")
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continue
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if winrm_config.get_cert_mapping(cert_thumprint, cert_upn):
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winrm_config.delete_cert_mapping(cert_thumprint, cert_upn)
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LOG.info("Creating WinRM certificate mapping for user "
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"%(user_name)s with UPN %(cert_upn)s",
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{'user_name': user_name, 'cert_upn': cert_upn})
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winrm_config.create_cert_mapping(cert_thumprint, cert_upn,
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user_name, password)
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finally:
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if disable_uac_remote_restrictions:
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LOG.debug("Enabling UAC remote restrictions")
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security_utils.set_uac_remote_restrictions(enable=True)
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return (base.PLUGIN_EXECUTION_DONE, False)
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