314 lines
11 KiB
Ruby
314 lines
11 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
module Gitlab
|
|
module Ci
|
|
module Parsers
|
|
module Security
|
|
class Common
|
|
SecurityReportParserError = Class.new(Gitlab::Ci::Parsers::ParserError)
|
|
|
|
def self.parse!(json_data, report, signatures_enabled: false, validate: false)
|
|
new(json_data, report, signatures_enabled: signatures_enabled, validate: validate).parse!
|
|
end
|
|
|
|
def initialize(json_data, report, signatures_enabled: false, validate: false)
|
|
@json_data = json_data
|
|
@report = report
|
|
@project = report.project
|
|
@validate = validate
|
|
@signatures_enabled = signatures_enabled
|
|
end
|
|
|
|
def parse!
|
|
set_report_version
|
|
|
|
return report_data unless valid?
|
|
|
|
raise SecurityReportParserError, "Invalid report format" unless report_data.is_a?(Hash)
|
|
|
|
create_scanner(top_level_scanner_data)
|
|
create_scan
|
|
create_analyzer
|
|
|
|
create_findings
|
|
|
|
report_data
|
|
rescue JSON::ParserError
|
|
raise SecurityReportParserError, 'JSON parsing failed'
|
|
rescue StandardError
|
|
raise SecurityReportParserError, "#{report.type} security report parsing failed"
|
|
end
|
|
|
|
private
|
|
|
|
attr_reader :json_data, :report, :validate, :project
|
|
|
|
def valid?
|
|
return true unless validate
|
|
|
|
schema_validation_passed = schema_validator.valid?
|
|
|
|
schema_validator.errors.each { |error| report.add_error('Schema', error) }
|
|
schema_validator.deprecation_warnings.each { |deprecation_warning| report.add_warning('Schema', deprecation_warning) }
|
|
schema_validator.warnings.each { |warning| report.add_warning('Schema', warning) }
|
|
|
|
schema_validation_passed
|
|
end
|
|
|
|
def schema_validator
|
|
@schema_validator ||= ::Gitlab::Ci::Parsers::Security::Validators::SchemaValidator.new(
|
|
report.type,
|
|
report_data,
|
|
report.version,
|
|
project: @project,
|
|
scanner: top_level_scanner_data
|
|
)
|
|
end
|
|
|
|
# New Oj parsers are not thread safe, therefore,
|
|
# we need to initialize them for each thread.
|
|
def introspect_parser
|
|
Thread.current[:introspect_parser] ||= Oj::Introspect.new(filter: "remediations")
|
|
end
|
|
|
|
def report_data
|
|
@report_data ||= introspect_parser.parse(json_data)
|
|
end
|
|
|
|
def report_version
|
|
@report_version ||= report_data['version']
|
|
end
|
|
|
|
def top_level_scanner_data
|
|
@top_level_scanner_data ||= report_data.dig('scan', 'scanner')
|
|
end
|
|
|
|
def scan_data
|
|
@scan_data ||= report_data.dig('scan')
|
|
end
|
|
|
|
def analyzer_data
|
|
@analyzer_data ||= report_data.dig('scan', 'analyzer')
|
|
end
|
|
|
|
def tracking_data(data)
|
|
data['tracking']
|
|
end
|
|
|
|
def create_findings
|
|
if report_data["vulnerabilities"]
|
|
report_data["vulnerabilities"].each { |finding| create_finding(finding) }
|
|
end
|
|
end
|
|
|
|
def create_finding(data, remediations = [])
|
|
identifiers = create_identifiers(data['identifiers'])
|
|
flags = create_flags(data['flags'])
|
|
links = create_links(data['links'])
|
|
location = create_location(data['location'] || {})
|
|
evidence = create_evidence(data['evidence'])
|
|
signatures = create_signatures(tracking_data(data))
|
|
|
|
if @signatures_enabled && !signatures.empty?
|
|
# NOT the signature_sha - the compare key is hashed
|
|
# to create the project_fingerprint
|
|
highest_priority_signature = signatures.max_by(&:priority)
|
|
uuid = calculate_uuid_v5(identifiers.first, highest_priority_signature.signature_hex)
|
|
else
|
|
uuid = calculate_uuid_v5(identifiers.first, location&.fingerprint)
|
|
end
|
|
|
|
report.add_finding(
|
|
::Gitlab::Ci::Reports::Security::Finding.new(
|
|
uuid: uuid,
|
|
report_type: report.type,
|
|
name: finding_name(data, identifiers, location),
|
|
compare_key: data['cve'] || '',
|
|
location: location,
|
|
evidence: evidence,
|
|
severity: parse_severity_level(data['severity']),
|
|
confidence: parse_confidence_level(data['confidence']),
|
|
scanner: create_scanner(top_level_scanner_data || data['scanner']),
|
|
scan: report&.scan,
|
|
identifiers: identifiers,
|
|
flags: flags,
|
|
links: links,
|
|
remediations: remediations,
|
|
original_data: data,
|
|
metadata_version: report_version,
|
|
details: data['details'] || {},
|
|
signatures: signatures,
|
|
project_id: @project.id,
|
|
vulnerability_finding_signatures_enabled: @signatures_enabled))
|
|
end
|
|
|
|
def create_signatures(tracking)
|
|
tracking ||= { 'items' => [] }
|
|
|
|
signature_algorithms = Hash.new { |hash, key| hash[key] = [] }
|
|
|
|
tracking['items'].each do |item|
|
|
next unless item.key?('signatures')
|
|
|
|
item['signatures'].each do |signature|
|
|
alg = signature['algorithm']
|
|
signature_algorithms[alg] << signature['value']
|
|
end
|
|
end
|
|
|
|
signature_algorithms.map do |algorithm, values|
|
|
value = values.join('|')
|
|
signature = ::Gitlab::Ci::Reports::Security::FindingSignature.new(
|
|
algorithm_type: algorithm,
|
|
signature_value: value
|
|
)
|
|
|
|
signature if signature.valid?
|
|
end.compact
|
|
end
|
|
|
|
def create_scan
|
|
return unless scan_data.is_a?(Hash)
|
|
|
|
report.scan = ::Gitlab::Ci::Reports::Security::Scan.new(scan_data)
|
|
end
|
|
|
|
def set_report_version
|
|
report.version = report_version
|
|
end
|
|
|
|
def create_analyzer
|
|
return unless analyzer_data.is_a?(Hash)
|
|
|
|
params = {
|
|
id: analyzer_data.dig('id'),
|
|
name: analyzer_data.dig('name'),
|
|
version: analyzer_data.dig('version'),
|
|
vendor: analyzer_data.dig('vendor', 'name')
|
|
}
|
|
|
|
return unless params.values.all?
|
|
|
|
report.analyzer = ::Gitlab::Ci::Reports::Security::Analyzer.new(**params)
|
|
end
|
|
|
|
def create_scanner(scanner_data)
|
|
return unless scanner_data.is_a?(Hash)
|
|
|
|
report.add_scanner(
|
|
::Gitlab::Ci::Reports::Security::Scanner.new(
|
|
external_id: scanner_data['id'],
|
|
name: scanner_data['name'],
|
|
vendor: scanner_data.dig('vendor', 'name'),
|
|
version: scanner_data.dig('version'),
|
|
primary_identifiers: create_scan_primary_identifiers))
|
|
end
|
|
|
|
# TODO: primary_identifiers should be initialized on the
|
|
# scan itself but we do not currently parse scans through `MergeReportsService`
|
|
def create_scan_primary_identifiers
|
|
return unless scan_data.is_a?(Hash) && scan_data.dig('primary_identifiers')
|
|
|
|
scan_data.dig('primary_identifiers').map do |identifier|
|
|
::Gitlab::Ci::Reports::Security::Identifier.new(
|
|
external_type: identifier['type'],
|
|
external_id: identifier['value'],
|
|
name: identifier['name'],
|
|
url: identifier['url'])
|
|
end
|
|
end
|
|
|
|
def create_identifiers(identifiers)
|
|
return [] unless identifiers.is_a?(Array)
|
|
|
|
identifiers.map { |identifier| create_identifier(identifier) }.compact
|
|
end
|
|
|
|
def create_identifier(identifier)
|
|
return unless identifier.is_a?(Hash)
|
|
|
|
report.add_identifier(
|
|
::Gitlab::Ci::Reports::Security::Identifier.new(
|
|
external_type: identifier['type'],
|
|
external_id: identifier['value'],
|
|
name: identifier['name'],
|
|
url: identifier['url']))
|
|
end
|
|
|
|
def create_flags(flags)
|
|
return [] unless flags.is_a?(Array)
|
|
|
|
flags.map { |flag| create_flag(flag) }.compact
|
|
end
|
|
|
|
def create_flag(flag)
|
|
return unless flag.is_a?(Hash)
|
|
|
|
::Gitlab::Ci::Reports::Security::Flag.new(type: flag['type'], origin: flag['origin'], description: flag['description'])
|
|
end
|
|
|
|
def create_links(links)
|
|
return [] unless links.is_a?(Array)
|
|
|
|
links.map { |link| create_link(link) }.compact
|
|
end
|
|
|
|
def create_link(link)
|
|
return unless link.is_a?(Hash)
|
|
|
|
::Gitlab::Ci::Reports::Security::Link.new(name: link['name'], url: link['url'])
|
|
end
|
|
|
|
def parse_severity_level(input)
|
|
input&.downcase.then { |value| ::Enums::Vulnerability.severity_levels.key?(value) ? value : 'unknown' }
|
|
end
|
|
|
|
def parse_confidence_level(input)
|
|
input&.downcase.then { |value| ::Enums::Vulnerability.confidence_levels.key?(value) ? value : 'unknown' }
|
|
end
|
|
|
|
def create_location(location_data)
|
|
raise NotImplementedError
|
|
end
|
|
|
|
def create_evidence(evidence_data)
|
|
return unless evidence_data.is_a?(Hash)
|
|
|
|
::Gitlab::Ci::Reports::Security::Evidence.new(data: evidence_data)
|
|
end
|
|
|
|
def finding_name(data, identifiers, location)
|
|
return data['message'] if data['message'].present?
|
|
return data['name'] if data['name'].present?
|
|
|
|
identifier = identifiers.find(&:cve?) || identifiers.find(&:cwe?) || identifiers.first
|
|
"#{identifier.name} in #{location&.fingerprint_path}"
|
|
end
|
|
|
|
def calculate_uuid_v5(primary_identifier, location_fingerprint)
|
|
uuid_v5_name_components = {
|
|
report_type: report.type,
|
|
primary_identifier_fingerprint: primary_identifier&.fingerprint,
|
|
location_fingerprint: location_fingerprint,
|
|
project_id: @project.id
|
|
}
|
|
|
|
if uuid_v5_name_components.values.any?(&:nil?)
|
|
Gitlab::AppLogger.warn(message: "One or more UUID name components are nil", components: uuid_v5_name_components)
|
|
return
|
|
end
|
|
|
|
::Security::VulnerabilityUUID.generate(
|
|
report_type: uuid_v5_name_components[:report_type],
|
|
primary_identifier_fingerprint: uuid_v5_name_components[:primary_identifier_fingerprint],
|
|
location_fingerprint: uuid_v5_name_components[:location_fingerprint],
|
|
project_id: uuid_v5_name_components[:project_id]
|
|
)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
Gitlab::Ci::Parsers::Security::Common.prepend_mod_with("Gitlab::Ci::Parsers::Security::Common")
|