components/openstack/neutron/patches/07-CVE-2014-6414.patch
changeset 4063 12e03e5492b8
parent 4062 f45bb9cec48c
parent 4061 5ac5027dc3e3
--- a/components/openstack/neutron/patches/07-CVE-2014-6414.patch	Fri Mar 20 22:56:27 2015 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,220 +0,0 @@
-This patch addresses CVE-2014-6414 and is tracked under Launchpad bug
-1357379. It is addressed in the Juno trunk and Icehouse 2014.1.3. There
-is no patch for Havana since it is EOL'ed by upstream. Therefore, this
-patch is derived from the patch for Icehouse 2014.1.3
-
-commit dd4b77ff53479389a5af8b45fd95ee2987562f29
-Author: Elena Ezhova <[email protected]>
-Date:   Tue Aug 19 15:54:36 2014 +0400
-
-    Forbid regular users to reset admin-only attrs to default values
-
-    A regular user can reset an admin-only attribute to its default
-    value due to the fact that a corresponding policy rule is
-    enforced only in the case when an attribute is present in the
-    target AND has a non-default value.
-
-    Added a new attribute "attributes_to_update" which contains a list
-    of all to-be updated attributes to the body of the target that is
-    passed to policy.enforce.
-
-    Changed a check for whether an attribute is explicitly set.
-    Now, in the case of update, the function should not pay attention
-    to a default value of an attribute, but check whether it was
-    explicitly marked as being updated.
-
-    Added unit-tests.
-
-    Conflicts:
-        neutron/common/constants.py
-
-    Closes-Bug: #1357379
-    Related-Bug: #1338880
-    Change-Id: I6537bb1da5ef0d6899bc71e4e949f2c760c103c2
-    (cherry picked from commit 74d10939903984d5f06c1749a8707fa3257e44ff)
-
---- neutron-2013.2.3/neutron/api/v2/base.py	2014-04-03 11:49:01.000000000 -0700
-+++ NEW/neutron/api/v2/base.py	2014-09-30 10:03:51.003850651 -0700
-@@ -24,6 +24,7 @@
- from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api
- from neutron.api.v2 import attributes
- from neutron.api.v2 import resource as wsgi_resource
-+from neutron.common import constants as const
- from neutron.common import exceptions
- from neutron.openstack.common import log as logging
- from neutron.openstack.common.notifier import api as notifier_api
-@@ -469,6 +470,10 @@
-         orig_obj = self._item(request, id, field_list=field_list,
-                               parent_id=parent_id)
-         orig_obj.update(body[self._resource])
-+        # Make a list of attributes to be updated to inform the policy engine
-+        # which attributes are set explicitly so that it can distinguish them
-+        # from the ones that are set to their default values.
-+        orig_obj[const.ATTRIBUTES_TO_UPDATE] = body[self._resource].keys()
-         try:
-             policy.enforce(request.context,
-                            action,
---- neutron-2013.2.3/neutron/common/constants.py	2014-04-03 11:49:01.000000000 -0700
-+++ NEW/neutron/common/constants.py	2014-09-30 10:24:19.837488691 -0700
-@@ -92,3 +92,5 @@
- PROTO_NUM_ICMP = 1
- PROTO_NUM_ICMP_V6 = 58
- PROTO_NUM_UDP = 17
-+
-+ATTRIBUTES_TO_UPDATE = 'attributes_to_update'
---- neutron-2013.2.3/neutron/policy.py	2014-04-03 11:49:01.000000000 -0700
-+++ NEW/neutron/policy.py	2014-09-30 10:12:16.819335023 -0700
-@@ -18,12 +18,15 @@
- """
- Policy engine for neutron.  Largely copied from nova.
- """
-+
-+import collections
- import itertools
- import re
- 
- from oslo.config import cfg
- 
- from neutron.api.v2 import attributes
-+from neutron.common import constants as const
- from neutron.common import exceptions
- import neutron.common.utils as utils
- from neutron import manager
-@@ -118,14 +121,28 @@
-     policy.set_rules(policies)
- 
- 
--def _is_attribute_explicitly_set(attribute_name, resource, target):
--    """Verify that an attribute is present and has a non-default value."""
-+def _is_attribute_explicitly_set(attribute_name, resource, target, action):
-+    """Verify that an attribute is present and is explicitly set."""
-+    if 'update' in action:
-+        # In the case of update, the function should not pay attention to a
-+        # default value of an attribute, but check whether it was explicitly
-+        # marked as being updated instead.
-+        return (attribute_name in target[const.ATTRIBUTES_TO_UPDATE] and
-+                target[attribute_name] is not attributes.ATTR_NOT_SPECIFIED)
-     return ('default' in resource[attribute_name] and
-             attribute_name in target and
-             target[attribute_name] is not attributes.ATTR_NOT_SPECIFIED and
-             target[attribute_name] != resource[attribute_name]['default'])
- 
- 
-+def _should_validate_sub_attributes(attribute, sub_attr):
-+    """Verify that sub-attributes are iterable and should be validated."""
-+    validate = attribute.get('validate')
-+    return (validate and isinstance(sub_attr, collections.Iterable) and
-+            any([k.startswith('type:dict') and
-+                 v for (k, v) in validate.iteritems()]))
-+
-+
- def _build_subattr_match_rule(attr_name, attr, action, target):
-     """Create the rule to match for sub-attribute policy checks."""
-     # TODO(salv-orlando): Instead of relying on validator info, introduce
-@@ -174,16 +191,14 @@
-             for attribute_name in res_map[resource]:
-                 if _is_attribute_explicitly_set(attribute_name,
-                                                 res_map[resource],
--                                                target):
-+                                                target, action):
-                     attribute = res_map[resource][attribute_name]
-                     if 'enforce_policy' in attribute:
-                         attr_rule = policy.RuleCheck('rule', '%s:%s' %
-                                                      (action, attribute_name))
--                        # Build match entries for sub-attributes, if present
--                        validate = attribute.get('validate')
--                        if (validate and any([k.startswith('type:dict') and v
--                                              for (k, v) in
--                                              validate.iteritems()])):
-+                        # Build match entries for sub-attributes
-+                        if _should_validate_sub_attributes(
-+                                attribute, target[attribute_name]):
-                             attr_rule = policy.AndCheck(
-                                 [attr_rule, _build_subattr_match_rule(
-                                     attribute_name, attribute,
---- neutron-2013.2.3/neutron/tests/unit/test_api_v2.py	2014-04-03 11:49:01.000000000 -0700
-+++ NEW/neutron/tests/unit/test_api_v2.py	2014-09-30 10:06:01.484803124 -0700
-@@ -1210,6 +1210,18 @@
-                                                               network_id='id1',
-                                                               dummy=body)
- 
-+    def test_update_subresource_to_none(self):
-+        instance = self.plugin.return_value
-+
-+        dummy_id = _uuid()
-+        body = {'dummy': {}}
-+        self.api.put_json('/networks/id1' + _get_path('dummies', id=dummy_id),
-+                          body)
-+        instance.update_network_dummy.assert_called_once_with(mock.ANY,
-+                                                              dummy_id,
-+                                                              network_id='id1',
-+                                                              dummy=body)
-+
-     def test_delete_sub_resource(self):
-         instance = self.plugin.return_value
- 
---- neutron-2013.2.3/neutron/tests/unit/test_policy.py	2014-04-03 11:49:01.000000000 -0700
-+++ NEW/neutron/tests/unit/test_policy.py	2014-09-30 10:09:03.707133011 -0700
-@@ -24,6 +24,7 @@
- 
- import neutron
- from neutron.api.v2 import attributes
-+from neutron.common import constants as const
- from neutron.common import exceptions
- from neutron import context
- from neutron import manager
-@@ -280,9 +281,11 @@
-         self.addCleanup(self.manager_patcher.stop)
- 
-     def _test_action_on_attr(self, context, action, attr, value,
--                             exception=None):
-+                             exception=None, **kwargs):
-         action = "%s_network" % action
-         target = {'tenant_id': 'the_owner', attr: value}
-+        if kwargs:
-+            target.update(kwargs)
-         if exception:
-             self.assertRaises(exception, policy.enforce,
-                               context, action, target)
-@@ -291,10 +294,10 @@
-             self.assertEqual(result, True)
- 
-     def _test_nonadmin_action_on_attr(self, action, attr, value,
--                                      exception=None):
-+                                      exception=None, **kwargs):
-         user_context = context.Context('', "user", roles=['user'])
-         self._test_action_on_attr(user_context, action, attr,
--                                  value, exception)
-+                                  value, exception, **kwargs)
- 
-     def test_nonadmin_write_on_private_fails(self):
-         self._test_nonadmin_action_on_attr('create', 'shared', False,
-@@ -311,9 +314,11 @@
-     def test_nonadmin_read_on_shared_succeeds(self):
-         self._test_nonadmin_action_on_attr('get', 'shared', True)
- 
--    def _test_enforce_adminonly_attribute(self, action):
-+    def _test_enforce_adminonly_attribute(self, action, **kwargs):
-         admin_context = context.get_admin_context()
-         target = {'shared': True}
-+        if kwargs:
-+            target.update(kwargs)
-         result = policy.enforce(admin_context, action, target)
-         self.assertEqual(result, True)
- 
-@@ -321,7 +326,14 @@
-         self._test_enforce_adminonly_attribute('create_network')
- 
-     def test_enforce_adminonly_attribute_update(self):
--        self._test_enforce_adminonly_attribute('update_network')
-+        kwargs = {const.ATTRIBUTES_TO_UPDATE: ['shared']}
-+        self._test_enforce_adminonly_attribute('update_network', **kwargs)
-+
-+    def test_reset_adminonly_attr_to_default_fails(self):
-+        kwargs = {const.ATTRIBUTES_TO_UPDATE: ['shared']}
-+        self._test_nonadmin_action_on_attr('update', 'shared', False,
-+                                           exceptions.PolicyNotAuthorized,
-+                                           **kwargs)
- 
-     def test_enforce_adminonly_attribute_no_context_is_admin_policy(self):
-         del self.rules[policy.ADMIN_CTX_POLICY]