debian-mirror-gitlab/spec/lib/gitlab/ci/parsers/security/common_spec.rb

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2021-10-27 15:23:28 +05:30
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Ci::Parsers::Security::Common do
describe '#parse!' do
where(vulnerability_finding_signatures_enabled: [true, false])
with_them do
let_it_be(:pipeline) { create(:ci_pipeline) }
let(:artifact) { build(:ci_job_artifact, :common_security_report) }
let(:report) { Gitlab::Ci::Reports::Security::Report.new(artifact.file_type, pipeline, 2.weeks.ago) }
# The path 'yarn.lock' was initially used by DependencyScanning, it is okay for SAST locations to use it, but this could be made better
let(:location) { ::Gitlab::Ci::Reports::Security::Locations::Sast.new(file_path: 'yarn.lock', start_line: 1, end_line: 1) }
let(:tracking_data) { nil }
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let(:vulnerability_flags_data) do
[
::Gitlab::Ci::Reports::Security::Flag.new(type: 'flagged-as-likely-false-positive', origin: 'post analyzer X', description: 'static string to sink'),
::Gitlab::Ci::Reports::Security::Flag.new(type: 'flagged-as-likely-false-positive', origin: 'post analyzer Y', description: 'integer to sink')
]
end
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before do
allow_next_instance_of(described_class) do |parser|
allow(parser).to receive(:create_location).and_return(location)
allow(parser).to receive(:tracking_data).and_return(tracking_data)
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allow(parser).to receive(:create_flags).and_return(vulnerability_flags_data)
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end
artifact.each_blob { |blob| described_class.parse!(blob, report, vulnerability_finding_signatures_enabled) }
end
describe 'schema validation' do
let(:validator_class) { Gitlab::Ci::Parsers::Security::Validators::SchemaValidator }
let(:parser) { described_class.new('{}', report, vulnerability_finding_signatures_enabled, validate: validate) }
subject(:parse_report) { parser.parse! }
before do
allow(validator_class).to receive(:new).and_call_original
end
context 'when the validate flag is set as `false`' do
let(:validate) { false }
it 'does not run the validation logic' do
parse_report
expect(validator_class).not_to have_received(:new)
end
end
context 'when the validate flag is set as `true`' do
let(:validate) { true }
let(:valid?) { false }
before do
allow_next_instance_of(validator_class) do |instance|
allow(instance).to receive(:valid?).and_return(valid?)
allow(instance).to receive(:errors).and_return(['foo'])
end
allow(parser).to receive_messages(create_scanner: true, create_scan: true)
end
it 'instantiates the validator with correct params' do
parse_report
expect(validator_class).to have_received(:new).with(report.type, {})
end
context 'when the report data is not valid according to the schema' do
it 'adds errors to the report' do
expect { parse_report }.to change { report.errors }.from([]).to([{ message: 'foo', type: 'Schema' }])
end
it 'does not try to create report entities' do
parse_report
expect(parser).not_to have_received(:create_scanner)
expect(parser).not_to have_received(:create_scan)
end
end
context 'when the report data is valid according to the schema' do
let(:valid?) { true }
it 'does not add errors to the report' do
expect { parse_report }.not_to change { report.errors }.from([])
end
it 'keeps the execution flow as normal' do
parse_report
expect(parser).to have_received(:create_scanner)
expect(parser).to have_received(:create_scan)
end
end
end
end
describe 'parsing finding.name' do
let(:artifact) { build(:ci_job_artifact, :common_security_report_with_blank_names) }
context 'when message is provided' do
it 'sets message from the report as a finding name' do
finding = report.findings.find { |x| x.compare_key == 'CVE-1020' }
expected_name = Gitlab::Json.parse(finding.raw_metadata)['message']
expect(finding.name).to eq(expected_name)
end
end
context 'when message is not provided' do
context 'and name is provided' do
it 'sets name from the report as a name' do
finding = report.findings.find { |x| x.compare_key == 'CVE-1030' }
expected_name = Gitlab::Json.parse(finding.raw_metadata)['name']
expect(finding.name).to eq(expected_name)
end
end
context 'and name is not provided' do
context 'when CVE identifier exists' do
it 'combines identifier with location to create name' do
finding = report.findings.find { |x| x.compare_key == 'CVE-2017-11429' }
expect(finding.name).to eq("CVE-2017-11429 in yarn.lock")
end
end
context 'when CWE identifier exists' do
it 'combines identifier with location to create name' do
finding = report.findings.find { |x| x.compare_key == 'CWE-2017-11429' }
expect(finding.name).to eq("CWE-2017-11429 in yarn.lock")
end
end
context 'when neither CVE nor CWE identifier exist' do
it 'combines identifier with location to create name' do
finding = report.findings.find { |x| x.compare_key == 'OTHER-2017-11429' }
expect(finding.name).to eq("other-2017-11429 in yarn.lock")
end
end
end
end
end
describe 'parsing finding.details' do
context 'when details are provided' do
it 'sets details from the report' do
finding = report.findings.find { |x| x.compare_key == 'CVE-1020' }
expected_details = Gitlab::Json.parse(finding.raw_metadata)['details']
expect(finding.details).to eq(expected_details)
end
end
context 'when details are not provided' do
it 'sets empty hash' do
finding = report.findings.find { |x| x.compare_key == 'CVE-1030' }
expect(finding.details).to eq({})
end
end
end
describe 'top-level scanner' do
it 'is the primary scanner' do
expect(report.primary_scanner.external_id).to eq('gemnasium')
expect(report.primary_scanner.name).to eq('Gemnasium')
expect(report.primary_scanner.vendor).to eq('GitLab')
expect(report.primary_scanner.version).to eq('2.18.0')
end
it 'returns nil report has no scanner' do
empty_report = Gitlab::Ci::Reports::Security::Report.new(artifact.file_type, pipeline, 2.weeks.ago)
described_class.parse!({}.to_json, empty_report)
expect(empty_report.primary_scanner).to be_nil
end
end
describe 'parsing scanners' do
subject(:scanner) { report.findings.first.scanner }
context 'when vendor is not missing in scanner' do
it 'returns scanner with parsed vendor value' do
expect(scanner.vendor).to eq('GitLab')
end
end
end
describe 'parsing scan' do
it 'returns scan object for each finding' do
scans = report.findings.map(&:scan)
expect(scans.map(&:status).all?('success')).to be(true)
expect(scans.map(&:start_time).all?('placeholder-value')).to be(true)
expect(scans.map(&:end_time).all?('placeholder-value')).to be(true)
expect(scans.size).to eq(3)
expect(scans.first).to be_a(::Gitlab::Ci::Reports::Security::Scan)
end
it 'returns nil when scan is not a hash' do
empty_report = Gitlab::Ci::Reports::Security::Report.new(artifact.file_type, pipeline, 2.weeks.ago)
described_class.parse!({}.to_json, empty_report)
expect(empty_report.scan).to be(nil)
end
end
describe 'parsing schema version' do
it 'parses the version' do
expect(report.version).to eq('14.0.2')
end
it 'returns nil when there is no version' do
empty_report = Gitlab::Ci::Reports::Security::Report.new(artifact.file_type, pipeline, 2.weeks.ago)
described_class.parse!({}.to_json, empty_report)
expect(empty_report.version).to be_nil
end
end
describe 'parsing analyzer' do
it 'associates analyzer with report' do
expect(report.analyzer.id).to eq('common-analyzer')
expect(report.analyzer.name).to eq('Common Analyzer')
expect(report.analyzer.version).to eq('2.0.1')
expect(report.analyzer.vendor).to eq('Common')
end
it 'returns nil when analyzer data is not available' do
empty_report = Gitlab::Ci::Reports::Security::Report.new(artifact.file_type, pipeline, 2.weeks.ago)
described_class.parse!({}.to_json, empty_report)
expect(empty_report.analyzer).to be_nil
end
end
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describe 'parsing flags' do
it 'returns flags object for each finding' do
flags = report.findings.first.flags
expect(flags).to contain_exactly(
have_attributes(type: 'flagged-as-likely-false-positive', origin: 'post analyzer X', description: 'static string to sink'),
have_attributes(type: 'flagged-as-likely-false-positive', origin: 'post analyzer Y', description: 'integer to sink')
)
end
end
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describe 'parsing links' do
it 'returns links object for each finding', :aggregate_failures do
links = report.findings.flat_map(&:links)
expect(links.map(&:url)).to match_array(['https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1020', 'https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1030'])
expect(links.map(&:name)).to match_array([nil, 'CVE-1030'])
expect(links.size).to eq(2)
expect(links.first).to be_a(::Gitlab::Ci::Reports::Security::Link)
end
end
describe 'setting the uuid' do
let(:finding_uuids) { report.findings.map(&:uuid) }
let(:uuid_1) do
Security::VulnerabilityUUID.generate(
report_type: "sast",
primary_identifier_fingerprint: report.findings[0].identifiers.first.fingerprint,
location_fingerprint: location.fingerprint,
project_id: pipeline.project_id
)
end
let(:uuid_2) do
Security::VulnerabilityUUID.generate(
report_type: "sast",
primary_identifier_fingerprint: report.findings[1].identifiers.first.fingerprint,
location_fingerprint: location.fingerprint,
project_id: pipeline.project_id
)
end
let(:expected_uuids) { [uuid_1, uuid_2, nil] }
it 'sets the UUIDv5 for findings', :aggregate_failures do
allow_next_instance_of(Gitlab::Ci::Reports::Security::Report) do |report|
allow(report).to receive(:type).and_return('sast')
expect(finding_uuids).to match_array(expected_uuids)
end
end
end
describe 'parsing tracking' do
let(:tracking_data) do
{
'type' => 'source',
'items' => [
'signatures' => [
{ 'algorithm' => 'hash', 'value' => 'hash_value' },
{ 'algorithm' => 'location', 'value' => 'location_value' },
{ 'algorithm' => 'scope_offset', 'value' => 'scope_offset_value' }
]
]
}
end
context 'with valid tracking information' do
it 'creates signatures for each algorithm' do
finding = report.findings.first
expect(finding.signatures.size).to eq(3)
expect(finding.signatures.map(&:algorithm_type).to_set).to eq(Set['hash', 'location', 'scope_offset'])
end
end
context 'with invalid tracking information' do
let(:tracking_data) do
{
'type' => 'source',
'items' => [
'signatures' => [
{ 'algorithm' => 'hash', 'value' => 'hash_value' },
{ 'algorithm' => 'location', 'value' => 'location_value' },
{ 'algorithm' => 'INVALID', 'value' => 'scope_offset_value' }
]
]
}
end
it 'ignores invalid algorithm types' do
finding = report.findings.first
expect(finding.signatures.size).to eq(2)
expect(finding.signatures.map(&:algorithm_type).to_set).to eq(Set['hash', 'location'])
end
end
context 'with valid tracking information' do
it 'creates signatures for each signature algorithm' do
finding = report.findings.first
expect(finding.signatures.size).to eq(3)
expect(finding.signatures.map(&:algorithm_type)).to eq(%w[hash location scope_offset])
signatures = finding.signatures.index_by(&:algorithm_type)
expected_values = tracking_data['items'][0]['signatures'].index_by { |x| x['algorithm'] }
expect(signatures['hash'].signature_value).to eq(expected_values['hash']['value'])
expect(signatures['location'].signature_value).to eq(expected_values['location']['value'])
expect(signatures['scope_offset'].signature_value).to eq(expected_values['scope_offset']['value'])
end
it 'sets the uuid according to the higest priority signature' do
finding = report.findings.first
highest_signature = finding.signatures.max_by(&:priority)
identifiers = if vulnerability_finding_signatures_enabled
"#{finding.report_type}-#{finding.primary_identifier.fingerprint}-#{highest_signature.signature_hex}-#{report.project_id}"
else
"#{finding.report_type}-#{finding.primary_identifier.fingerprint}-#{finding.location.fingerprint}-#{report.project_id}"
end
expect(finding.uuid).to eq(Gitlab::UUID.v5(identifiers))
end
end
end
end
end
end