Add authorization for Dependencies Controller

ee/app/controllers/projects/security/dependencies_controller.rb

@@ -3,6 +3,7 @@
 module Projects
   module Security
     class DependenciesController < Projects::ApplicationController
+      before_action :authorize_read_dependency_list!
       before_action :ensure_dependency_list_feature_available
 
       def index
@@ -31,6 +32,10 @@ module Projects
         ::Gitlab::DependenciesCollection.new(found_dependencies)
       end
 
+      def authorize_read_dependency_list!
+        return render_403 unless can?(current_user, :read_project_security_dashboard, project)
+      end
+
       def ensure_dependency_list_feature_available
         render_404 unless project.feature_available?(:dependency_list)
       end

ee/changelogs/unreleased/12425-permissions.yml

+---
+title: Add authorization to the dependency list
+merge_request: 14867
+author:
+type: added

ee/spec/controllers/projects/security/dependencies_controller_spec.rb

@@ -9,17 +9,17 @@ describe Projects::Security::DependenciesController do
     let(:params) { { namespace_id: project.namespace, project_id: project } }
 
     before do
-      project.add_developer(user)
+      sign_in(user)
     end
 
     context 'with authorized user' do
       before do
-        sign_in(user)
+        project.add_developer(user)
       end
 
       context 'when feature is available' do
         before do
-          stub_licensed_features(dependency_list: true)
+          stub_licensed_features(dependency_list: true, security_dashboard: true)
         end
 
         it 'counts usage of the feature' do
@@ -135,6 +135,8 @@ describe Projects::Security::DependenciesController do
 
       context 'when feature is not available' do
         before do
+          stub_licensed_features(security_dashboard: true)
+
           get :index, params: params, format: :json
         end
 
@@ -146,11 +148,13 @@ describe Projects::Security::DependenciesController do
 
     context 'with unauthorized user' do
       before do
+        project.add_guest(user)
+
         get :index, params: params, format: :json
       end
 
-      it 'returns 404' do
-        expect(response).to have_gitlab_http_status(404)
+      it 'returns 403' do
+        expect(response).to have_gitlab_http_status(403)
       end
     end
   end