Add latest changes from gitlab-org/security/gitlab@12-6-stable-ee

22 files changed, 296 insertions, 24 deletions

diff --git a/app/controllers/profiles/notifications_controller.rb b/app/controllers/profiles/notifications_controller.rb
index 5f44e55f3ef..d295b64082c 100644
--- a/app/controllers/profiles/notifications_controller.rb
+++ b/app/controllers/profiles/notifications_controller.rb
@@ -11,6 +11,7 @@ class Profiles::NotificationsController < Profiles::ApplicationController
       exclude_group_ids: @group_notifications.select(:source_id)
     ).execute.map { |group| current_user.notification_settings_for(group, inherit: true) }
     @project_notifications = current_user.notification_settings.for_projects.order(:id)
+                             .select { |notification| current_user.can?(:read_project, notification.source) }
     @global_notification_setting = current_user.global_notification_setting
   end
   # rubocop: enable CodeReuse/ActiveRecord
diff --git a/app/controllers/projects/releases_controller.rb b/app/controllers/projects/releases_controller.rb
index ffe69fe97e4..d6030a9e455 100644
--- a/app/controllers/projects/releases_controller.rb
+++ b/app/controllers/projects/releases_controller.rb
@@ -10,7 +10,7 @@ class Projects::ReleasesController < Projects::ApplicationController
     push_frontend_feature_flag(:release_evidence_collection, project)
   end
   before_action :authorize_update_release!, only: %i[edit update]
-  before_action :authorize_download_code!, only: [:evidence]
+  before_action :authorize_read_release_evidence!, only: [:evidence]
 
   def index
     respond_to do |format|
@@ -47,6 +47,11 @@ class Projects::ReleasesController < Projects::ApplicationController
     access_denied! unless can?(current_user, :update_release, release)
   end
 
+  def authorize_read_release_evidence!
+    access_denied! unless Feature.enabled?(:release_evidence, project, default_enabled: true)
+    access_denied! unless can?(current_user, :read_release_evidence, release)
+  end
+
   def release
     @release ||= project.releases.find_by_tag!(sanitized_tag_name)
   end
diff --git a/app/helpers/notifications_helper.rb b/app/helpers/notifications_helper.rb
index 8855e0cdd70..9a64fe98f86 100644
--- a/app/helpers/notifications_helper.rb
+++ b/app/helpers/notifications_helper.rb
@@ -116,4 +116,8 @@ module NotificationsHelper
   def show_unsubscribe_title?(noteable)
     can?(current_user, "read_#{noteable.to_ability_name}".to_sym, noteable)
   end
+
+  def can_read_project?(project)
+    can?(current_user, :read_project, project)
+  end
 end
diff --git a/app/models/evidence.rb b/app/models/evidence.rb
index 69a00f1cb3f..55149ab0dfa 100644
--- a/app/models/evidence.rb
+++ b/app/models/evidence.rb
@@ -15,6 +15,21 @@ class Evidence < ApplicationRecord
     @milestones ||= release.milestones.includes(:issues)
   end
 
+  ##
+  # Return `summary` without sensitive information.
+  #
+  # Removing issues from summary in order to prevent leaking confidential ones.
+  # See more https://gitlab.com/gitlab-org/gitlab/issues/121930
+  def summary
+    safe_summary = read_attribute(:summary)
+
+    safe_summary.dig('release', 'milestones')&.each do |milestone|
+      milestone.delete('issues')
+    end
+
+    safe_summary
+  end
+
   private
 
   def generate_summary_and_sha
diff --git a/app/policies/release_policy.rb b/app/policies/release_policy.rb
index d7f9e5d7445..0fd1312c511 100644
--- a/app/policies/release_policy.rb
+++ b/app/policies/release_policy.rb
@@ -2,4 +2,31 @@
 
 class ReleasePolicy < BasePolicy
   delegate { @subject.project }
+
+  rule { allowed_to_read_evidence & external_authorization_service_disabled }.policy do
+    enable :read_release_evidence
+  end
+
+  ##
+  # evidence.summary includes the following entities:
+  # - Release
+  # - git-tag (Repository)
+  # - Project
+  # - Milestones
+  # - Issues
+  condition(:allowed_to_read_evidence) do
+    can?(:read_release) &&
+      can?(:download_code) &&
+      can?(:read_project) &&
+      can?(:read_milestone) &&
+      can?(:read_issue)
+  end
+
+  ##
+  # Currently, we don't support release evidence for the GitLab instances
+  # that enables external authorization services.
+  # See https://gitlab.com/gitlab-org/gitlab/issues/121930.
+  condition(:external_authorization_service_disabled) do
+    !Gitlab::ExternalAuthorization::Config.enabled?
+  end
 end
diff --git a/app/views/sent_notifications/unsubscribe.html.haml b/app/views/sent_notifications/unsubscribe.html.haml
index 22fcfcda297..1eecbe3bc0e 100644
--- a/app/views/sent_notifications/unsubscribe.html.haml
+++ b/app/views/sent_notifications/unsubscribe.html.haml
@@ -1,13 +1,16 @@
 - noteable = @sent_notification.noteable
 - noteable_type = @sent_notification.noteable_type.titleize.downcase
 - noteable_text = show_unsubscribe_title?(noteable) ? %(#{noteable.title} (#{noteable.to_reference})) : %(#{noteable.to_reference})
-- page_title _("Unsubscribe"), noteable_text, noteable_type.pluralize, @sent_notification.project.full_name
+- show_project_path = can_read_project?(@sent_notification.project)
+- project_path = show_project_path ? @sent_notification.project.full_name : _("GitLab / Unsubscribe")
+- noteable_url = show_project_path ? url_for([@sent_notification.project.namespace.becomes(Namespace), @sent_notification.project, noteable]) : breadcrumb_title_link
+- page_title _('Unsubscribe'), noteable_text, noteable_type.pluralize, project_path
 
 %h3.page-title
   = _("Unsubscribe from %{type}") % { type: noteable_type }
 
 %p
-  - link_to_noteable_text = link_to(noteable_text, url_for([@sent_notification.project.namespace.becomes(Namespace), @sent_notification.project, noteable]))
+  - link_to_noteable_text = link_to(noteable_text, noteable_url)
   = _("Are you sure you want to unsubscribe from the %{type}: %{link_to_noteable_text}?").html_safe % { type: noteable_type, link_to_noteable_text: link_to_noteable_text }
 
 %p
diff --git a/changelogs/unreleased/security-11-graphql-timeout.yml b/changelogs/unreleased/security-11-graphql-timeout.yml
new file mode 100644
index 00000000000..1d06aaced9d
--- /dev/null
+++ b/changelogs/unreleased/security-11-graphql-timeout.yml
@@ -0,0 +1,5 @@
+---
+title: 'GraphQL: Add timeout to all queries'
+merge_request:
+author:
+type: security
diff --git a/changelogs/unreleased/security-29983-private-project-name-exposed.yml b/changelogs/unreleased/security-29983-private-project-name-exposed.yml
new file mode 100644
index 00000000000..2cae417ec1d
--- /dev/null
+++ b/changelogs/unreleased/security-29983-private-project-name-exposed.yml
@@ -0,0 +1,5 @@
+---
+title: Filter out notification settings for projects that a user does not have at least read access
+merge_request:
+author:
+type: security
diff --git a/changelogs/unreleased/security-34072-project-name-disclosed.yml b/changelogs/unreleased/security-34072-project-name-disclosed.yml
new file mode 100644
index 00000000000..f14c7728273
--- /dev/null
+++ b/changelogs/unreleased/security-34072-project-name-disclosed.yml
@@ -0,0 +1,5 @@
+---
+title: Hide project name and path when unsusbcribing from an issue or merge request
+merge_request:
+author:
+type: security
diff --git a/changelogs/unreleased/security-fix-invalid-byte-sequence-upload-links-master.yml b/changelogs/unreleased/security-fix-invalid-byte-sequence-upload-links-master.yml
new file mode 100644
index 00000000000..afe48b448b0
--- /dev/null
+++ b/changelogs/unreleased/security-fix-invalid-byte-sequence-upload-links-master.yml
@@ -0,0 +1,5 @@
+---
+title: Fix 500 error caused by invalid byte sequences in uploads links
+merge_request:
+author:
+type: security
diff --git a/changelogs/unreleased/security-vulnerable-evidence-12-7.yml b/changelogs/unreleased/security-vulnerable-evidence-12-7.yml
new file mode 100644
index 00000000000..9a7cdeeddb4
--- /dev/null
+++ b/changelogs/unreleased/security-vulnerable-evidence-12-7.yml
@@ -0,0 +1,5 @@
+---
+title: Fix Vulnerability of Release Evidence
+merge_request:
+author:
+type: security
diff --git a/config/initializers/graphql.rb b/config/initializers/graphql.rb
index f1bc289f1f0..2b21c9d9729 100644
--- a/config/initializers/graphql.rb
+++ b/config/initializers/graphql.rb
@@ -5,3 +5,7 @@ GraphQL::Field.accepts_definitions(authorize: GraphQL::Define.assign_metadata_ke
 
 GraphQL::Schema::Object.accepts_definition(:authorize)
 GraphQL::Schema::Field.accepts_definition(:authorize)
+
+GitlabSchema.middleware << GraphQL::Schema::TimeoutMiddleware.new(max_seconds: ENV.fetch('GITLAB_RAILS_GRAPHQL_TIMEOUT', 30).to_i) do |timeout_error, query|
+  Gitlab::GraphqlLogger.error(message: timeout_error.to_s, query: query.query_string, query_variables: query.provided_variables)
+end
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index cc95be5e3be..76963777566 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -1336,7 +1336,7 @@ module API
       expose :author, using: Entities::UserBasic, if: -> (release, _) { release.author.present? }
       expose :commit, using: Entities::Commit, if: ->(_, _) { can_download_code? }
       expose :upcoming_release?, as: :upcoming_release
-      expose :milestones, using: Entities::Milestone, if: -> (release, _) { release.milestones.present? }
+      expose :milestones, using: Entities::Milestone, if: -> (release, _) { release.milestones.present? && can_read_milestone? }
       expose :commit_path, expose_nil: false
       expose :tag_path, expose_nil: false
       expose :evidence_sha, expose_nil: false, if: ->(_, _) { can_download_code? }
@@ -1362,6 +1362,10 @@ module API
       def can_download_code?
         Ability.allowed?(options[:current_user], :download_code, object.project)
       end
+
+      def can_read_milestone?
+        Ability.allowed?(options[:current_user], :read_milestone, object.project)
+      end
     end
 
     class Tag < Grape::Entity
diff --git a/lib/banzai/filter/relative_link_filter.rb b/lib/banzai/filter/relative_link_filter.rb
index 583b0081319..4f257189f8e 100644
--- a/lib/banzai/filter/relative_link_filter.rb
+++ b/lib/banzai/filter/relative_link_filter.rb
@@ -116,7 +116,7 @@ module Banzai
       end
 
       def process_link_to_upload_attr(html_attr)
-        path_parts = [Addressable::URI.unescape(html_attr.value)]
+        path_parts = [unescape_and_scrub_uri(html_attr.value)]
 
         if project
           path_parts.unshift(relative_url_root, project.full_path)
@@ -172,7 +172,7 @@ module Banzai
       end
 
       def cleaned_file_path(uri)
-        Addressable::URI.unescape(uri.path).scrub.delete("\0").chomp("/")
+        unescape_and_scrub_uri(uri.path).delete("\0").chomp("/")
       end
 
       def relative_file_path(uri)
@@ -184,7 +184,7 @@ module Banzai
       def request_path
         return unless context[:requested_path]
 
-        Addressable::URI.unescape(context[:requested_path]).chomp("/")
+        unescape_and_scrub_uri(context[:requested_path]).chomp("/")
       end
 
       # Convert a relative path into its correct location based on the currently
@@ -266,6 +266,12 @@ module Banzai
       def repository
         @repository ||= project&.repository
       end
+
+      private
+
+      def unescape_and_scrub_uri(uri)
+        Addressable::URI.unescape(uri).scrub
+      end
     end
   end
 end
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 9044dcc2ff8..40d5e7223d6 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -8509,6 +8509,9 @@ msgstr ""
 msgid "GitHub import"
 msgstr ""
 
+msgid "GitLab / Unsubscribe"
+msgstr ""
+
 msgid "GitLab CI Linter has been moved"
 msgstr ""
 
diff --git a/spec/controllers/profiles/notifications_controller_spec.rb b/spec/controllers/profiles/notifications_controller_spec.rb
index dbc408bcdd9..ede68744ac6 100644
--- a/spec/controllers/profiles/notifications_controller_spec.rb
+++ b/spec/controllers/profiles/notifications_controller_spec.rb
@@ -52,6 +52,35 @@ describe Profiles::NotificationsController do
         end.to exceed_query_limit(control)
       end
     end
+
+    context 'with project notifications' do
+      let!(:notification_setting) { create(:notification_setting, source: project, user: user, level: :watch) }
+
+      before do
+        sign_in(user)
+        get :show
+      end
+
+      context 'when project is public' do
+        let(:project) { create(:project, :public) }
+
+        it 'shows notification setting for project' do
+          expect(assigns(:project_notifications).map(&:source_id)).to include(project.id)
+        end
+      end
+
+      context 'when project is public' do
+        let(:project) { create(:project, :private) }
+
+        it 'shows notification setting for project' do
+          # notification settings for given project were created before project was set to private
+          expect(user.notification_settings.for_projects.map(&:source_id)).to include(project.id)
+
+          # check that notification settings for project where user does not have access are filtered
+          expect(assigns(:project_notifications)).to be_empty
+        end
+      end
+    end
   end
 
   describe 'POST update' do
diff --git a/spec/controllers/projects/releases_controller_spec.rb b/spec/controllers/projects/releases_controller_spec.rb
index e9fa3764117..750e9aabef0 100644
--- a/spec/controllers/projects/releases_controller_spec.rb
+++ b/spec/controllers/projects/releases_controller_spec.rb
@@ -167,7 +167,7 @@ describe Projects::ReleasesController do
   end
 
   describe 'GET #evidence' do
-    let(:tag_name) { "v1.1.0-evidence" }
+    let_it_be(:tag_name) { "v1.1.0-evidence" }
     let!(:release) { create(:release, :with_evidence, project: project, tag: tag_name) }
     let(:tag) { CGI.escape(release.tag) }
     let(:format) { :json }
@@ -220,6 +220,85 @@ describe Projects::ReleasesController do
         it_behaves_like 'successful request'
       end
     end
+
+    context 'when release is associated to a milestone which includes an issue' do
+      let_it_be(:project) { create(:project, :repository, :public) }
+      let_it_be(:issue) { create(:issue, project: project) }
+      let_it_be(:milestone) { create(:milestone, project: project, issues: [issue]) }
+      let_it_be(:release) { create(:release, project: project, tag: tag_name, milestones: [milestone]) }
+
+      before do
+        create(:evidence, release: release)
+      end
+
+      shared_examples_for 'does not show the issue in evidence' do
+        it do
+          subject
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response['release']['milestones']
+            .all? { |milestone| milestone['issues'].nil? }).to eq(true)
+        end
+      end
+
+      shared_examples_for 'evidence not found' do
+        it do
+          subject
+
+          expect(response).to have_gitlab_http_status(:not_found)
+        end
+      end
+
+      shared_examples_for 'safely expose evidence' do
+        it_behaves_like 'does not show the issue in evidence'
+
+        context 'when the issue is confidential' do
+          let(:issue) { create(:issue, :confidential, project: project) }
+
+          it_behaves_like 'does not show the issue in evidence'
+        end
+
+        context 'when the user is the author of the confidential issue' do
+          let(:issue) { create(:issue, :confidential, project: project, author: user) }
+
+          it_behaves_like 'does not show the issue in evidence'
+        end
+
+        context 'when project is private' do
+          let!(:project) { create(:project, :repository, :private) }
+
+          it_behaves_like 'evidence not found'
+        end
+
+        context 'when project restricts the visibility of issues to project members only' do
+          let!(:project) { create(:project, :repository, :issues_private) }
+
+          it_behaves_like 'evidence not found'
+        end
+      end
+
+      context 'when user is non-project member' do
+        let(:user) { create(:user) }
+
+        it_behaves_like 'safely expose evidence'
+      end
+
+      context 'when user is auditor', if: Gitlab.ee? do
+        let(:user) { create(:user, :auditor) }
+
+        it_behaves_like 'safely expose evidence'
+      end
+
+      context 'when external authorization control is enabled' do
+        let(:user) { create(:user) }
+
+        before do
+          stub_application_setting(external_authorization_service_enabled: true)
+        end
+
+        it_behaves_like 'evidence not found'
+      end
+    end
   end
 
   private
diff --git a/spec/controllers/sent_notifications_controller_spec.rb b/spec/controllers/sent_notifications_controller_spec.rb
index 0e634d8ba99..4dd4f49dcf1 100644
--- a/spec/controllers/sent_notifications_controller_spec.rb
+++ b/spec/controllers/sent_notifications_controller_spec.rb
@@ -56,7 +56,7 @@ describe SentNotificationsController do
           get(:unsubscribe, params: { id: sent_notification.reply_key })
         end
 
-        shared_examples 'unsubscribing as anonymous' do
+        shared_examples 'unsubscribing as anonymous' do |project_visibility|
           it 'does not unsubscribe the user' do
             expect(noteable.subscribed?(user, target_project)).to be_truthy
           end
@@ -69,6 +69,18 @@ describe SentNotificationsController do
             expect(response.status).to eq(200)
             expect(response).to render_template :unsubscribe
           end
+
+          if project_visibility == :private
+            it 'does not show project name or path' do
+              expect(response.body).not_to include(noteable.project.name)
+              expect(response.body).not_to include(noteable.project.full_name)
+            end
+          else
+            it 'shows project name or path' do
+              expect(response.body).to include(noteable.project.name)
+              expect(response.body).to include(noteable.project.full_name)
+            end
+          end
         end
 
         context 'when project is public' do
@@ -79,7 +91,7 @@ describe SentNotificationsController do
               expect(response.body).to include(issue.title)
             end
 
-            it_behaves_like 'unsubscribing as anonymous'
+            it_behaves_like 'unsubscribing as anonymous', :public
           end
 
           context 'when unsubscribing from confidential issue' do
@@ -90,7 +102,7 @@ describe SentNotificationsController do
               expect(response.body).to include(confidential_issue.to_reference)
             end
 
-            it_behaves_like 'unsubscribing as anonymous'
+            it_behaves_like 'unsubscribing as anonymous', :public
           end
 
           context 'when unsubscribing from merge request' do
@@ -100,7 +112,12 @@ describe SentNotificationsController do
               expect(response.body).to include(merge_request.title)
             end
 
-            it_behaves_like 'unsubscribing as anonymous'
+            it 'shows project name or path' do
+              expect(response.body).to include(issue.project.name)
+              expect(response.body).to include(issue.project.full_name)
+            end
+
+            it_behaves_like 'unsubscribing as anonymous', :public
           end
         end
 
@@ -110,11 +127,11 @@ describe SentNotificationsController do
           context 'when unsubscribing from issue' do
             let(:noteable) { issue }
 
-            it 'shows issue title' do
+            it 'does not show issue title' do
               expect(response.body).not_to include(issue.title)
             end
 
-            it_behaves_like 'unsubscribing as anonymous'
+            it_behaves_like 'unsubscribing as anonymous', :private
           end
 
           context 'when unsubscribing from confidential issue' do
@@ -125,17 +142,17 @@ describe SentNotificationsController do
               expect(response.body).to include(confidential_issue.to_reference)
             end
 
-            it_behaves_like 'unsubscribing as anonymous'
+            it_behaves_like 'unsubscribing as anonymous', :private
           end
 
           context 'when unsubscribing from merge request' do
             let(:noteable) { merge_request }
 
-            it 'shows merge request title' do
+            it 'dos not show merge request title' do
               expect(response.body).not_to include(merge_request.title)
             end
 
-            it_behaves_like 'unsubscribing as anonymous'
+            it_behaves_like 'unsubscribing as anonymous', :private
           end
         end
       end
diff --git a/spec/fixtures/api/schemas/evidences/milestone.json b/spec/fixtures/api/schemas/evidences/milestone.json
index ab27fdecde2..3ce0644225b 100644
--- a/spec/fixtures/api/schemas/evidences/milestone.json
+++ b/spec/fixtures/api/schemas/evidences/milestone.json
@@ -7,8 +7,7 @@
     "state",
     "iid",
     "created_at",
-    "due_date",
-    "issues"
+    "due_date"
   ],
   "properties": {
     "id": { "type": "integer" },
@@ -17,11 +16,7 @@
     "state": { "type": "string" },
     "iid": { "type": "integer" },
     "created_at": { "type": "date" },
-    "due_date": { "type": ["date", "null"] },
-    "issues": {
-      "type": "array",
-      "items": { "$ref": "issue.json" }
-    }
+    "due_date": { "type": ["date", "null"] }
   },
   "additionalProperties": false
 }
diff --git a/spec/lib/banzai/filter/relative_link_filter_spec.rb b/spec/lib/banzai/filter/relative_link_filter_spec.rb
index a17a645d4d0..9f467d7a6fd 100644
--- a/spec/lib/banzai/filter/relative_link_filter_spec.rb
+++ b/spec/lib/banzai/filter/relative_link_filter_spec.rb
@@ -128,6 +128,15 @@ describe Banzai::Filter::RelativeLinkFilter do
     expect { filter(act) }.not_to raise_error
   end
 
+  it 'does not raise an exception on URIs containing invalid utf-8 byte sequences in uploads' do
+    act = link("/uploads/%FF")
+    expect { filter(act) }.not_to raise_error
+  end
+
+  it 'does not raise an exception on URIs containing invalid utf-8 byte sequences in context requested path' do
+    expect { filter(link("files/test.md"), requested_path: '%FF') }.not_to raise_error
+  end
+
   it 'does not raise an exception with a garbled path' do
     act = link("open(/var/tmp/):%20/location%0Afrom:%20/test")
     expect { filter(act) }.not_to raise_error
diff --git a/spec/requests/api/graphql/gitlab_schema_spec.rb b/spec/requests/api/graphql/gitlab_schema_spec.rb
index 2aeb75a10b4..2cb8436662b 100644
--- a/spec/requests/api/graphql/gitlab_schema_spec.rb
+++ b/spec/requests/api/graphql/gitlab_schema_spec.rb
@@ -8,6 +8,18 @@ describe 'GitlabSchema configurations' do
   set(:project) { create(:project) }
 
   shared_examples 'imposing query limits' do
+    describe 'timeouts' do
+      context 'when timeout is reached' do
+        it 'shows an error' do
+          Timecop.scale(50000000) do # ludicrously large number because the timeout has to happen before the query even begins
+            subject
+
+            expect_graphql_errors_to_include /Timeout/
+          end
+        end
+      end
+    end
+
     describe '#max_complexity' do
       context 'when complexity is too high' do
         it 'shows an error' do
diff --git a/spec/requests/api/releases_spec.rb b/spec/requests/api/releases_spec.rb
index da04e852795..233f0497b7f 100644
--- a/spec/requests/api/releases_spec.rb
+++ b/spec/requests/api/releases_spec.rb
@@ -340,6 +340,40 @@ describe API::Releases do
 
           expect(response).to have_gitlab_http_status(:ok)
         end
+
+        context 'when release is associated to a milestone' do
+          let!(:release) do
+            create(:release, tag: 'v0.1', project: project, milestones: [milestone])
+          end
+
+          let(:milestone) { create(:milestone, project: project) }
+
+          it 'exposes milestones' do
+            get api("/projects/#{project.id}/releases/v0.1", non_project_member)
+
+            expect(json_response['milestones'].first['title']).to eq(milestone.title)
+          end
+
+          context 'when project restricts visibility of issues and merge requests' do
+            let!(:project) { create(:project, :repository, :public, :issues_private, :merge_requests_private) }
+
+            it 'does not expose milestones' do
+              get api("/projects/#{project.id}/releases/v0.1", non_project_member)
+
+              expect(json_response['milestones']).to be_nil
+            end
+          end
+
+          context 'when project restricts visibility of issues' do
+            let!(:project) { create(:project, :repository, :public, :issues_private) }
+
+            it 'exposes milestones' do
+              get api("/projects/#{project.id}/releases/v0.1", non_project_member)
+
+              expect(json_response['milestones'].first['title']).to eq(milestone.title)
+            end
+          end
+        end
       end
     end
   end