SECURITY: Validate backup chunk identifier

This commit is contained in:
Gerhard Schlager 2019-07-19 16:33:08 +02:00
parent af192ff9d5
commit 90a1aa5536
2 changed files with 55 additions and 18 deletions

View File

@ -152,6 +152,8 @@ class Admin::BackupsController < Admin::AdminController
chunk_number = params.fetch(:resumableChunkNumber)
current_chunk_size = params.fetch(:resumableCurrentChunkSize).to_i
raise Discourse::InvalidParameters.new(:resumableIdentifier) unless valid_filename?(identifier)
# path to chunk file
chunk = BackupRestore::LocalBackupStore.chunk_path(identifier, filename, chunk_number)
# check chunk upload status
@ -163,13 +165,14 @@ class Admin::BackupsController < Admin::AdminController
def upload_backup_chunk
filename = params.fetch(:resumableFilename)
total_size = params.fetch(:resumableTotalSize).to_i
identifier = params.fetch(:resumableIdentifier)
raise Discourse::InvalidParameters.new(:resumableIdentifier) unless valid_filename?(identifier)
return render status: 415, plain: I18n.t("backup.backup_file_should_be_tar_gz") unless valid_extension?(filename)
return render status: 415, plain: I18n.t("backup.not_enough_space_on_disk") unless has_enough_space_on_disk?(total_size)
return render status: 415, plain: I18n.t("backup.invalid_filename") unless valid_filename?(filename)
file = params.fetch(:file)
identifier = params.fetch(:resumableIdentifier)
chunk_number = params.fetch(:resumableChunkNumber).to_i
chunk_size = params.fetch(:resumableChunkSize).to_i
current_chunk_size = params.fetch(:resumableCurrentChunkSize).to_i

View File

@ -201,7 +201,9 @@ RSpec.describe Admin::BackupsController do
described_class.any_instance.expects(:has_enough_space_on_disk?).returns(true)
post "/admin/backups/upload", params: {
resumableFilename: invalid_filename, resumableTotalSize: 1
resumableFilename: invalid_filename,
resumableTotalSize: 1,
resumableIdentifier: 'test'
}
expect(response.status).to eq(415)
@ -210,27 +212,59 @@ RSpec.describe Admin::BackupsController do
end
end
describe "when resumableIdentifier is invalid" do
it "should raise an error" do
filename = 'test_site-0123456789.tar.gz'
@paths = [backup_path(File.join('tmp', 'test', "#{filename}.part1"))]
post "/admin/backups/upload.json", params: {
resumableFilename: filename,
resumableTotalSize: 1,
resumableIdentifier: '../test',
resumableChunkNumber: '1',
resumableChunkSize: '1',
resumableCurrentChunkSize: '1',
file: fixture_file_upload(Tempfile.new)
}
expect(response.status).to eq(400)
end
end
describe "when filename is valid" do
it "should upload the file successfully" do
begin
described_class.any_instance.expects(:has_enough_space_on_disk?).returns(true)
described_class.any_instance.expects(:has_enough_space_on_disk?).returns(true)
filename = 'test_Site-0123456789.tar.gz'
@paths = [backup_path(File.join('tmp', 'test', "#{filename}.part1"))]
filename = 'test_Site-0123456789.tar.gz'
@paths = [backup_path(File.join('tmp', 'test', "#{filename}.part1"))]
post "/admin/backups/upload.json", params: {
resumableFilename: filename,
resumableTotalSize: 1,
resumableIdentifier: 'test',
resumableChunkNumber: '1',
resumableChunkSize: '1',
resumableCurrentChunkSize: '1',
file: fixture_file_upload(Tempfile.new)
}
post "/admin/backups/upload.json", params: {
resumableFilename: filename,
resumableTotalSize: 1,
resumableIdentifier: 'test',
resumableChunkNumber: '1',
resumableChunkSize: '1',
resumableCurrentChunkSize: '1',
file: fixture_file_upload(Tempfile.new)
}
expect(response.status).to eq(200)
expect(response.body).to eq("")
end
expect(response.status).to eq(200)
expect(response.body).to eq("")
end
end
end
describe "#check_backup_chunk" do
describe "when resumableIdentifier is invalid" do
it "should raise an error" do
get "/admin/backups/upload", params: {
resumableIdentifier: "../some_file",
resumableFilename: "test_site-0123456789.tar.gz",
resumableChunkNumber: '1',
resumableCurrentChunkSize: '1'
}
expect(response.status).to eq(400)
end
end
end