lib/brakeman/checks/check_file_disclosure.rb
require 'brakeman/checks/base_check'
class Brakeman::CheckFileDisclosure < Brakeman::BaseCheck
Brakeman::Checks.add self
@description = 'Checks for versions with file existence disclosure vulnerability'
def run_check
fix_version = case
when version_between?('2.0.0', '2.3.18')
'3.2.21'
when version_between?('3.0.0', '3.2.20')
'3.2.21'
when version_between?('4.0.0', '4.0.11')
'4.0.12'
when version_between?('4.1.0', '4.1.7')
'4.1.8'
else
nil
end
if fix_version and serves_static_assets?
warn :warning_type => "File Access",
:warning_code => :CVE_2014_7829,
:message => msg(msg_version(rails_version), " has a file existence disclosure vulnerability. Upgrade to ", msg_version(fix_version), " or disable serving static assets"),
:confidence => :high,
:gem_info => gemfile_or_environment,
:link_path => "https://groups.google.com/d/msg/rubyonrails-security/23fiuwb1NBA/MQVM1-5GkPMJ",
:cwe_id => [22]
end
end
def serves_static_assets?
true? tracker.config.rails[:serve_static_assets]
end
end