[ARVADOS] updated: afe466027816e2adf997969099ef307f0591509e

Git user git at public.curoverse.com
Mon Mar 7 02:43:01 EST 2016


Summary of changes:
 .../arvados/v1/api_client_authorizations_controller.rb       | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

  discards  5e6671aba2106fb616192606fa6b4be11af2d999 (commit)
  discards  227589de13afa707bf19aea4db4a99fdc2b24d95 (commit)
       via  afe466027816e2adf997969099ef307f0591509e (commit)
       via  3ba3d4b7c9fef59f73eae59aa79195e2e51eb2e1 (commit)

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commit afe466027816e2adf997969099ef307f0591509e
Author: Tom Clegg <tom at curoverse.com>
Date:   Sun Mar 6 14:50:22 2016 -0500

    8079: Prevent users from changing their own token UUIDs.

diff --git a/services/api/app/models/api_client_authorization.rb b/services/api/app/models/api_client_authorization.rb
index c587e58..499a61b 100644
--- a/services/api/app/models/api_client_authorization.rb
+++ b/services/api/app/models/api_client_authorization.rb
@@ -82,8 +82,9 @@ class ApiClientAuthorization < ArvadosModel
 
   def permission_to_update
     (permission_to_create and
-     not self.user_id_changed? and
-     not self.owner_uuid_changed?)
+     not uuid_changed? and
+     not user_id_changed? and
+     not owner_uuid_changed?)
   end
 
   def log_update
diff --git a/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb b/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb
index e45bdc4..1fb94ab 100644
--- a/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb
@@ -126,4 +126,22 @@ class Arvados::V1::ApiClientAuthorizationsControllerTest < ActionController::Tes
       end
     end
   end
+
+  test "scoped token cannot change its own scopes" do
+    authorize_with :admin_vm
+    put :update, {
+      id: api_client_authorizations(:admin_vm).uuid,
+      api_client_authorization: {scopes: ['all']},
+    }
+    assert_response 403
+  end
+
+  test "token cannot change its own uuid" do
+    authorize_with :admin
+    put :update, {
+      id: api_client_authorizations(:admin).uuid,
+      api_client_authorization: {uuid: 'zzzzz-gj3su-zzzzzzzzzzzzzzz'},
+    }
+    assert_response 403
+  end
 end

commit 3ba3d4b7c9fef59f73eae59aa79195e2e51eb2e1
Author: Tom Clegg <tom at curoverse.com>
Date:   Fri Mar 4 17:30:53 2016 -0500

    8079: Prevent users from looking up other users' tokens by UUID.
    
    Previous code was allowing any user logging in through a "trusted
    client" (typically Workbench) to retrieve the secret token for any
    ApiClientAuthorization whose UUID is known.  This won't be acceptable
    when Container records start including those UUIDs.
    
    Also added permission for any user to update (e.g., change expiration)
    and delete their current token, even if the token wasn't assigned
    through a "trusted client".

diff --git a/services/api/app/controllers/arvados/v1/api_client_authorizations_controller.rb b/services/api/app/controllers/arvados/v1/api_client_authorizations_controller.rb
index 2eb79c0..cb232f0 100644
--- a/services/api/app/controllers/arvados/v1/api_client_authorizations_controller.rb
+++ b/services/api/app/controllers/arvados/v1/api_client_authorizations_controller.rb
@@ -49,14 +49,14 @@ class Arvados::V1::ApiClientAuthorizationsController < ApplicationController
   def find_objects_for_index
     # Here we are deliberately less helpful about searching for client
     # authorizations.  We look up tokens belonging to the current user
-    # and filter by exact matches on api_token and scopes.
+    # and filter by exact matches on uuid, api_token, and scopes.
     wanted_scopes = []
     if @filters
       wanted_scopes.concat(@filters.map { |attr, operator, operand|
         ((attr == 'scopes') and (operator == '=')) ? operand : nil
       })
       @filters.select! { |attr, operator, operand|
-        ((attr == 'uuid') and (operator == '=')) || ((attr == 'api_token') and (operator == '='))
+        operator == '=' && (attr == 'uuid' || attr == 'api_token')
       }
     end
     if @where
@@ -74,21 +74,26 @@ class Arvados::V1::ApiClientAuthorizationsController < ApplicationController
   end
 
   def find_object_by_uuid
-    @object = model_class.where(uuid: (params[:uuid] || params[:id])).first
+    conditions = {
+      uuid: (params[:uuid] || params[:id]),
+      user_id: current_user.id,
+    }
+    unless Thread.current[:api_client].andand.is_trusted
+      conditions[:api_token] = current_api_client_authorization.andand.api_token
+    end
+    @object = model_class.where(conditions).first
   end
 
   def current_api_client_is_trusted
     unless Thread.current[:api_client].andand.is_trusted
-      if params["action"] == "show"
-        if @object and @object['api_token'] == current_api_client_authorization.andand.api_token
+      if %w[show update destroy].include? params['action']
+        if @object.andand['api_token'] == current_api_client_authorization.andand.api_token
           return true
         end
       elsif params["action"] == "index" and @objects.andand.size == 1
         filters = @filters.map{|f|f.first}.uniq
-        if ['uuid'] == filters
+        if [['uuid'], ['api_token']].include? filters
           return true if @objects.first['api_token'] == current_api_client_authorization.andand.api_token
-        elsif ['api_token'] == filters
-          return true if @objects.first[:user_id] = current_user.id
         end
       end
       send_error('Forbidden: this API client cannot manipulate other clients\' access tokens.',
diff --git a/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb b/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb
index 5da9145..e45bdc4 100644
--- a/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/api_client_authorizations_controller_test.rb
@@ -68,46 +68,62 @@ class Arvados::V1::ApiClientAuthorizationsControllerTest < ActionController::Tes
     end
   end
 
-  [
-    [:admin, :admin, 200],
-    [:admin, :active, 403],
-    [:admin, :admin_vm, 403], # this belongs to the user of current session, but we can't get it by uuid
-    [:admin_trustedclient, :active, 200],
-  ].each do |user, token, status|
-    test "as user #{user} get #{token} token and expect #{status}" do
+  [# anyone can look up the token they're currently using
+   [:admin, :admin, 200, 200, 1],
+   [:active, :active, 200, 200, 1],
+   # cannot look up other tokens (even for same user) if not trustedclient
+   [:admin, :active, 404, 403],
+   [:admin, :admin_vm, 404, 403],
+   [:active, :admin, 404, 403],
+   # cannot look up other tokens for other users, regardless of trustedclient
+   [:admin_trustedclient, :active, 404, 200, 0],
+   [:active_trustedclient, :admin, 404, 200, 0],
+  ].each do |user, token, expect_get_response, expect_list_response, expect_list_items|
+    test "using '#{user}', get '#{token}' by uuid" do
       authorize_with user
-      get :show, {id: api_client_authorizations(token).uuid}
-      assert_response status
+      get :show, {
+        id: api_client_authorizations(token).uuid,
+      }
+      assert_response expect_get_response
+    end
+
+    test "using '#{user}', update '#{token}' by uuid" do
+      authorize_with user
+      put :update, {
+        id: api_client_authorizations(token).uuid,
+        api_client_authorization: {},
+      }
+      assert_response expect_get_response
     end
-  end
 
-  [
-    [:admin, :admin, 200],
-    [:admin, :active, 403],
-    [:admin, :admin_vm, 403], # this belongs to the user of current session, but we can't list it by uuid
-    [:admin_trustedclient, :active, 200],
-  ].each do |user, token, status|
-    test "as user #{user} list #{token} token using uuid and expect #{status}" do
+    test "using '#{user}', delete '#{token}' by uuid" do
+      authorize_with user
+      post :destroy, {
+        id: api_client_authorizations(token).uuid,
+      }
+      assert_response expect_get_response
+    end
+
+    test "using '#{user}', list '#{token}' by uuid" do
       authorize_with user
       get :index, {
-        filters: [['uuid','=',api_client_authorizations(token).uuid]]
+        filters: [['uuid','=',api_client_authorizations(token).uuid]],
       }
-      assert_response status
+      assert_response expect_list_response
+      if expect_list_items
+        assert_equal assigns(:objects).length, expect_list_items
+      end
     end
-  end
 
-  [
-    [:admin, :admin, 200],
-    [:admin, :active, 403],
-    [:admin, :admin_vm, 200], # this belongs to the user of current session, and can be listed by token
-    [:admin_trustedclient, :active, 200],
-  ].each do |user, token, status|
-    test "as user #{user} list #{token} token using token and expect #{status}" do
+    test "using '#{user}', list '#{token}' by token" do
       authorize_with user
       get :index, {
-        filters: [['api_token','=',api_client_authorizations(token).api_token]]
+        filters: [['api_token','=',api_client_authorizations(token).api_token]],
       }
-      assert_response status
+      assert_response expect_list_response
+      if expect_list_items
+        assert_equal assigns(:objects).length, expect_list_items
+      end
     end
   end
 end

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