Class: Brakeman::CheckMailTo

Inherits:

BaseCheck

• Object
• SexpProcessor
• BaseCheck
• Brakeman::CheckMailTo

show all

Defined in:

lib/brakeman/checks/check_mail_to.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)

• - (Boolean) mail_to_javascript?

  Check for javascript encoding of mail_to address.

• - (Object) run_check

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

mail_to email, name, :encode => :javascript

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# File 'lib/brakeman/checks/check_mail_to.rb', line 30

def mail_to_javascript?
  debug_info "Checking calls to mail_to for javascript encoding"

  tracker.find_call(:target => false, :method => :mail_to).each do |result|
    call = result[:call]
    args = call[-1]

    args.each do |arg|
      if hash? arg
        hash_iterate arg do |k, v|
          if symbol? v and v[-1] == :javascript
            return result
          end
        end
      end
    end
  end

  false
end

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# File 'lib/brakeman/checks/check_mail_to.rb', line 10

def run_check
  if (version_between? "2.3.0", "2.3.10" or version_between? "3.0.0", "3.0.3") and result = mail_to_javascript?
    message = "Vulnerability in mail_to using javascript encoding (CVE-2011-0446). Upgrade to Rails version "

    if version_between? "2.3.0", "2.3.10"
      message << "2.3.11"
    else
      message << "3.0.4"
    end

    warn :result => result,
      :warning_type => "Mail Link",
      :message => message,
      :confidence => CONFIDENCE[:high],
      :file => gemfile_or_environment
  end
end