From 742cee756bf39d93fe5c7f207f8a54143ae6a384 Mon Sep 17 00:00:00 2001 From: Douwe Maan Date: Mon, 7 Nov 2016 17:09:22 +0000 Subject: Merge branch 'jej-22869' into 'security' Fix information disclosure in `Projects::BlobController#update` It was possible to discover private project names by modifying `from_merge_request`parameter in `Projects::BlobController#update`. This fixes that. - [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG.md) entry added - Tests - [x] Added for this feature/bug - [ ] All builds are passing - [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html) - [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides) - [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits) https://gitlab.com/gitlab-org/gitlab-ce/issues/22869 See merge request !2023 --- app/controllers/projects/blob_controller.rb | 20 ++++----- app/views/projects/blob/edit.html.haml | 2 +- app/views/projects/diffs/_file.html.haml | 2 +- changelogs/unreleased/jej-22869.yml | 4 ++ spec/controllers/projects/blob_controller_spec.rb | 49 +++++++++++++++++++++++ spec/features/projects/blobs/edit_spec.rb | 45 +++++++++++++++++++++ 6 files changed, 108 insertions(+), 14 deletions(-) create mode 100644 changelogs/unreleased/jej-22869.yml create mode 100644 spec/features/projects/blobs/edit_spec.rb diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb index 56ced786311..9940263ae24 100644 --- a/app/controllers/projects/blob_controller.rb +++ b/app/controllers/projects/blob_controller.rb @@ -13,7 +13,6 @@ class Projects::BlobController < Projects::ApplicationController before_action :assign_blob_vars before_action :commit, except: [:new, :create] before_action :blob, except: [:new, :create] - before_action :from_merge_request, only: [:edit, :update] before_action :require_branch_head, only: [:edit, :update] before_action :editor_variables, except: [:show, :preview, :diff] before_action :validate_diff_params, only: :diff @@ -39,14 +38,6 @@ class Projects::BlobController < Projects::ApplicationController def update @path = params[:file_path] if params[:file_path].present? - after_edit_path = - if from_merge_request && @target_branch == @ref - diffs_namespace_project_merge_request_path(from_merge_request.target_project.namespace, from_merge_request.target_project, from_merge_request) + - "##{hexdigest(@path)}" - else - namespace_project_blob_path(@project.namespace, @project, File.join(@target_branch, @path)) - end - create_commit(Files::UpdateService, success_path: after_edit_path, failure_view: :edit, failure_path: namespace_project_blob_path(@project.namespace, @project, @id)) @@ -124,9 +115,14 @@ class Projects::BlobController < Projects::ApplicationController render_404 end - def from_merge_request - # If blob edit was initiated from merge request page - @from_merge_request ||= MergeRequest.find_by(id: params[:from_merge_request_id]) + def after_edit_path + from_merge_request = MergeRequestsFinder.new(current_user, project_id: @project.id).execute.find_by(iid: params[:from_merge_request_iid]) + if from_merge_request && @target_branch == @ref + diffs_namespace_project_merge_request_path(from_merge_request.target_project.namespace, from_merge_request.target_project, from_merge_request) + + "##{hexdigest(@path)}" + else + namespace_project_blob_path(@project.namespace, @project, File.join(@target_branch, @path)) + end end def editor_variables diff --git a/app/views/projects/blob/edit.html.haml b/app/views/projects/blob/edit.html.haml index 2a0352a71b7..a5dcd93f42e 100644 --- a/app/views/projects/blob/edit.html.haml +++ b/app/views/projects/blob/edit.html.haml @@ -27,5 +27,5 @@ = render 'shared/new_commit_form', placeholder: "Update #{@blob.name}" = hidden_field_tag 'last_commit_sha', @last_commit_sha = hidden_field_tag 'content', '', id: "file-content" - = hidden_field_tag 'from_merge_request_id', params[:from_merge_request_id] + = hidden_field_tag 'from_merge_request_iid', params[:from_merge_request_iid] = render 'projects/commit_button', ref: @ref, cancel_path: namespace_project_blob_path(@project.namespace, @project, @id) diff --git a/app/views/projects/diffs/_file.html.haml b/app/views/projects/diffs/_file.html.haml index 120ba9ffcd2..6c33d80becd 100644 --- a/app/views/projects/diffs/_file.html.haml +++ b/app/views/projects/diffs/_file.html.haml @@ -9,7 +9,7 @@ = icon('comment') \ - if editable_diff?(diff_file) - - link_opts = @merge_request.id ? { from_merge_request_id: @merge_request.id } : {} + - link_opts = @merge_request.persisted? ? { from_merge_request_iid: @merge_request.iid } : {} = edit_blob_link(@merge_request.source_project, @merge_request.source_branch, diff_file.new_path, blob: blob, link_opts: link_opts) diff --git a/changelogs/unreleased/jej-22869.yml b/changelogs/unreleased/jej-22869.yml new file mode 100644 index 00000000000..9d2edcfee42 --- /dev/null +++ b/changelogs/unreleased/jej-22869.yml @@ -0,0 +1,4 @@ +--- +title: Fix information disclosure in `Projects::BlobController#update` +merge_request: +author: diff --git a/spec/controllers/projects/blob_controller_spec.rb b/spec/controllers/projects/blob_controller_spec.rb index 52d13fb6f9e..1c2b0a4a45c 100644 --- a/spec/controllers/projects/blob_controller_spec.rb +++ b/spec/controllers/projects/blob_controller_spec.rb @@ -36,4 +36,53 @@ describe Projects::BlobController do end end end + + describe 'PUT update' do + let(:default_params) do + { + namespace_id: project.namespace.to_param, + project_id: project.to_param, + id: 'master/CHANGELOG', + target_branch: 'master', + content: 'Added changes', + commit_message: 'Update CHANGELOG' + } + end + + def blob_after_edit_path + namespace_project_blob_path(project.namespace, project, 'master/CHANGELOG') + end + + it 'redirects to blob' do + put :update, default_params + + expect(response).to redirect_to(blob_after_edit_path) + end + + context '?from_merge_request_iid' do + let(:merge_request) { create(:merge_request, source_project: project, target_project: project) } + let(:mr_params) { default_params.merge(from_merge_request_iid: merge_request.iid) } + + it 'redirects to MR diff' do + put :update, mr_params + + after_edit_path = diffs_namespace_project_merge_request_path(project.namespace, project, merge_request) + file_anchor = "#file-path-#{Digest::SHA1.hexdigest('CHANGELOG')}" + expect(response).to redirect_to(after_edit_path + file_anchor) + end + + context "when user doesn't have access" do + before do + other_project = create(:empty_project) + merge_request.update!(source_project: other_project, target_project: other_project) + end + + it "it redirect to blob" do + put :update, mr_params + + expect(response).to redirect_to(blob_after_edit_path) + end + end + end + end end diff --git a/spec/features/projects/blobs/edit_spec.rb b/spec/features/projects/blobs/edit_spec.rb new file mode 100644 index 00000000000..a820d07ab3b --- /dev/null +++ b/spec/features/projects/blobs/edit_spec.rb @@ -0,0 +1,45 @@ +require 'spec_helper' + +feature 'Editing file blob', feature: true, js: true do + include WaitForAjax + + given(:user) { create(:user) } + given(:role) { :developer } + given(:merge_request) { create(:merge_request, source_branch: 'feature', target_branch: 'master') } + given(:project) { merge_request.target_project } + + background do + login_as(user) + project.team << [user, role] + end + + def edit_and_commit + wait_for_ajax + first('.file-actions').click_link 'Edit' + execute_script('ace.edit("editor").setValue("class NextFeature\nend\n")') + click_button 'Commit Changes' + end + + context 'from MR diff' do + before do + visit diffs_namespace_project_merge_request_path(project.namespace, project, merge_request) + edit_and_commit + end + + scenario 'returns me to the mr' do + expect(page).to have_content(merge_request.title) + end + end + + context 'from blob file path' do + before do + visit namespace_project_blob_path(project.namespace, project, '/feature/files/ruby/feature.rb') + edit_and_commit + end + + scenario 'updates content' do + expect(page).to have_content 'successfully committed' + expect(page).to have_content 'NextFeature' + end + end +end -- cgit v1.2.1