Class: Brakeman::CheckStripTags

Inherits:

BaseCheck

• Object
• SexpProcessor
• BaseCheck
• Brakeman::CheckStripTags

show all

Defined in:

lib/brakeman/checks/check_strip_tags.rb

Overview

Constant Summary

Constant Summary

Constants inherited from BaseCheck

BaseCheck::CONFIDENCE

Constants included from Util

Util::ALL_PARAMETERS, Util::COOKIES, Util::PARAMETERS, Util::PATH_PARAMETERS, Util::QUERY_PARAMETERS, Util::REQUEST_PARAMETERS, Util::SESSION

Instance Attribute Summary

Attributes inherited from BaseCheck

#tracker, #warnings

Instance Method Summary (collapse)

• - (Object) run_check
• - (Boolean) uses_strip_tags?

Methods inherited from BaseCheck

#add_result, #initialize, #process_call, #process_cookies, #process_default, #process_params

Methods included from Util

#array?, #call?, #camelize, #cookies?, #false?, #hash?, #hash_insert, #hash_iterate, #integer?, #number?, #params?, #pluralize, #regexp?, #result?, #set_env_defaults, #sexp?, #string?, #symbol?, #true?, #underscore

Methods included from ProcessorHelper

#class_name, #process_module

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# File 'lib/brakeman/checks/check_strip_tags.rb', line 8

def run_check
  if (version_between?('2.0.0', '2.3.12') or 
      version_between?('3.0.0', '3.0.9')) and uses_strip_tags?

    if tracker.config[:rails_version] =~ /^3/
      message = "Versions before 3.0.10 have a vulnerability in strip_tags: CVE-2011-2931"
    else
      message = "Versions before 2.3.13 have a vulnerability in strip_tags: CVE-2011-2931"
    end

    warn :warning_type => "Cross Site Scripting",
      :message => message,
      :confidence => CONFIDENCE[:high],
      :file => gemfile_or_environment
  end
end

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# File 'lib/brakeman/checks/check_strip_tags.rb', line 25

def uses_strip_tags?
  debug_info "Finding calls to strip_tags()"

  not tracker.find_call(:target => false, :method => :strip_tags).empty?
end