debian-mirror-gitlab/debian/patches/CVE-2019-19257.patch
2019-11-28 21:03:30 +05:30

181 lines
6 KiB
Diff

From debb36496b4805beae28262fbb24a692018178e2 Mon Sep 17 00:00:00 2001
From: Kerri Miller <kerrizor@kerrizor.com>
Date: Fri, 25 Oct 2019 07:46:40 -0500
Subject: [PATCH] Restrict branches visible to guests in Issue feed
Notes related to branch creation should not be shown in an issue's
activity feed when the user doesn't have access to :download_code.
---
app/models/note.rb | 15 ++++-
...er-related-branches-from-activity-feed.yml | 6 ++
.../projects/issues_controller_spec.rb | 37 +++++++++++
spec/models/note_spec.rb | 64 +++++++++++++++++++
4 files changed, 121 insertions(+), 1 deletion(-)
create mode 100644 changelogs/unreleased/security-filter-related-branches-from-activity-feed.yml
--- a/app/models/note.rb
+++ b/app/models/note.rb
@@ -40,6 +40,10 @@
redact_field :note
+ TYPES_RESTRICTED_BY_ABILITY = {
+ branch: :download_code
+ }.freeze
+
# Aliases to make application_helper#edited_time_ago_with_tooltip helper work properly with notes.
# See https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10392/diffs#note_28719102
alias_attribute :last_edited_at, :updated_at
@@ -333,7 +337,7 @@
end
def visible_for?(user)
- !cross_reference_not_visible_for?(user)
+ !cross_reference_not_visible_for?(user) && system_note_viewable_by?(user)
end
def award_emoji?
@@ -485,6 +489,15 @@
private
+ def system_note_viewable_by?(user)
+ return true unless system_note_metadata
+
+ restriction = TYPES_RESTRICTED_BY_ABILITY[system_note_metadata.action.to_sym]
+ return Ability.allowed?(user, restriction, project) if restriction
+
+ true
+ end
+
def keep_around_commit
project.repository.keep_around(self.commit_id)
end
--- /dev/null
+++ b/changelogs/unreleased/security-filter-related-branches-from-activity-feed.yml
@@ -0,0 +1,6 @@
+---
+title: Remove notes regarding Related Branches from Issue activity feeds for guest
+ users
+merge_request:
+author:
+type: security
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -1343,6 +1343,43 @@
expect { get :discussions, params: { namespace_id: project.namespace, project_id: project, id: issue.iid } }.not_to exceed_query_limit(control_count)
end
end
+
+ context 'private project' do
+ let!(:branch_note) { create(:discussion_note_on_issue, :system, noteable: issue, project: project) }
+ let!(:commit_note) { create(:discussion_note_on_issue, :system, noteable: issue, project: project) }
+ let!(:branch_note_meta) { create(:system_note_metadata, note: branch_note, action: "branch") }
+ let!(:commit_note_meta) { create(:system_note_metadata, note: commit_note, action: "commit") }
+
+ context 'user is allowed access' do
+ before do
+ project.add_user(user, :maintainer)
+ end
+
+ it 'displays all available notes' do
+ get :discussions, params: { namespace_id: project.namespace, project_id: project, id: issue.iid }
+
+ expect(json_response.length).to eq(3)
+ end
+ end
+
+ context 'user is a guest' do
+ let(:json_response_note_ids) do
+ json_response.collect { |discussion| discussion["notes"] }.flatten
+ .collect { |note| note["id"].to_i }
+ end
+
+ before do
+ project.add_guest(user)
+ end
+
+ it 'does not display notes w/type listed in TYPES_RESTRICTED_BY_ACCESS_LEVEL' do
+ get :discussions, params: { namespace_id: project.namespace, project_id: project, id: issue.iid }
+
+ expect(json_response.length).to eq(2)
+ expect(json_response_note_ids).not_to include(branch_note.id)
+ end
+ end
+ end
end
end
--- a/spec/models/note_spec.rb
+++ b/spec/models/note_spec.rb
@@ -246,6 +246,70 @@
end
end
+ describe "#visible_for?" do
+ using RSpec::Parameterized::TableSyntax
+
+ let(:note) { create(:note) }
+ let(:user) { create(:user) }
+
+ where(:cross_reference_visible, :system_note_viewable, :result) do
+ true | true | false
+ false | true | true
+ false | false | false
+ end
+
+ with_them do
+ it "returns expected result" do
+ expect(note).to receive(:cross_reference_not_visible_for?).and_return(cross_reference_visible)
+
+ unless cross_reference_visible
+ expect(note).to receive(:system_note_viewable_by?)
+ .with(user).and_return(system_note_viewable)
+ end
+
+ expect(note.visible_for?(user)).to eq result
+ end
+ end
+ end
+
+ describe "#system_note_viewable_by?(user)" do
+ let(:note) { create(:note) }
+ let(:user) { create(:user) }
+ let!(:metadata) { create(:system_note_metadata, note: note, action: "branch") }
+
+ context "when system_note_metadata is not present" do
+ it "returns true" do
+ expect(note).to receive(:system_note_metadata).and_return(nil)
+
+ expect(note.send(:system_note_viewable_by?, user)).to be_truthy
+ end
+ end
+
+ context "system_note_metadata isn't of type 'branch'" do
+ before do
+ metadata.action = "not_a_branch"
+ end
+
+ it "returns true" do
+ expect(note.send(:system_note_viewable_by?, user)).to be_truthy
+ end
+ end
+
+ context "user doesn't have :download_code ability" do
+ it "returns false" do
+ expect(note.send(:system_note_viewable_by?, user)).to be_falsey
+ end
+ end
+
+ context "user has the :download_code ability" do
+ it "returns true" do
+ expect(Ability).to receive(:allowed?).with(user, :download_code, note.project).and_return(true)
+
+ expect(note.send(:system_note_viewable_by?, user)).to be_truthy
+ end
+ end
+ end
+
describe "cross_reference_not_visible_for?" do
let(:private_user) { create(:user) }
let(:private_project) { create(:project, namespace: private_user.namespace) { |p| p.add_maintainer(private_user) } }