Class: Brakeman::CheckTranslateBug

Inherits:
BaseCheck show all
Defined in:
lib/brakeman/checks/check_translate_bug.rb

Overview

Check for vulnerability in translate() helper that allows cross-site scripting

Constant Summary

Constants inherited from BaseCheck

BaseCheck::CONFIDENCE

Constants included from Util

Util::ALL_PARAMETERS, Util::COOKIES, Util::COOKIES_SEXP, Util::PARAMETERS, Util::PARAMS_SEXP, Util::PATH_PARAMETERS, Util::QUERY_PARAMETERS, Util::REQUEST_ENV, Util::REQUEST_PARAMETERS, Util::REQUEST_PARAMS, Util::SESSION, Util::SESSION_SEXP

Constants inherited from SexpProcessor

SexpProcessor::VERSION

Instance Attribute Summary

Attributes inherited from BaseCheck

#tracker, #warnings

Attributes inherited from SexpProcessor

#context, #env, #expected

Instance Method Summary collapse

Methods inherited from BaseCheck

#add_result, inherited, #initialize, #process_call, #process_cookies, #process_default, #process_if, #process_params, #process_string_interp

Methods included from Util

#array?, #block?, #call?, #camelize, #contains_class?, #context_for, #cookies?, #false?, #file_by_name, #file_for, #hash?, #hash_access, #hash_insert, #hash_iterate, #integer?, #make_call, #node_type?, #number?, #params?, #pluralize, #regexp?, #relative_path, #request_env?, #request_value?, #result?, #set_env_defaults, #sexp?, #string?, #symbol?, #table_to_csv, #true?, #truncate_table, #underscore

Methods included from ProcessorHelper

#class_name, #process_all, #process_all!, #process_call_args, #process_module

Methods inherited from SexpProcessor

#error_handler, #in_context, #initialize, #process, #process_dummy, #scope

Constructor Details

This class inherits a constructor from Brakeman::BaseCheck

Instance Method Details

#run_check ⇒ Object 



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# File 'lib/brakeman/checks/check_translate_bug.rb', line 9

def run_check
  return if lts_version? '2.3.18.6'
  if (version_between?('2.3.0', '2.3.99') and tracker.config[:escape_html]) or
      version_between?('3.0.0', '3.0.10') or
      version_between?('3.1.0', '3.1.1')

    confidence = if uses_translate?
      CONFIDENCE[:high]
    else
      CONFIDENCE[:med]
    end

    version = tracker.config[:rails_version]
    description = "have a vulnerability in the translate helper with keys ending in _html"

    message = if version =~ /^3\.1/
      "Versions before 3.1.2 #{description}."
    elsif version =~ /^3\.0/
      "Versions before 3.0.11 #{description}."
    else
      "Rails 2.3.x using the rails_xss plugin #{description}."
    end

    warn :warning_type => "Cross Site Scripting",
      :warning_code => :translate_vuln,
      :message => message,
      :confidence => confidence,
      :file => gemfile_or_environment,
      :link_path => "http://groups.google.com/group/rubyonrails-security/browse_thread/thread/2b61d70fb73c7cc5"
  end
end

#uses_translate? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/brakeman/checks/check_translate_bug.rb', line 41

def uses_translate?
  Brakeman.debug "Finding calls to translate() or t()"

  tracker.find_call(:target => nil, :methods => [:t, :translate]).any?
end