Class: Brakeman::CheckRenderInline

Inherits:
CheckCrossSiteScripting show all
Defined in:
lib/brakeman/checks/check_render_inline.rb

Constant Summary

Constants inherited from CheckCrossSiteScripting

Brakeman::CheckCrossSiteScripting::CGI, Brakeman::CheckCrossSiteScripting::FORM_BUILDER, Brakeman::CheckCrossSiteScripting::HAML_HELPERS, Brakeman::CheckCrossSiteScripting::IGNORE_LIKE, Brakeman::CheckCrossSiteScripting::IGNORE_MODEL_METHODS, Brakeman::CheckCrossSiteScripting::MODEL_METHODS, Brakeman::CheckCrossSiteScripting::URI, Brakeman::CheckCrossSiteScripting::XML_HELPER

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 CheckCrossSiteScripting

#actually_process_call, #boolean_method?, #cgi_escaped?, #check_for_immediate_xss, #form_builder_method?, #haml_escaped?, #ignore_call?, #ignored_method?, #ignored_model_method?, #likely_model_attribute?, #process_call, #process_cookies, #process_escaped_output, #process_format, #process_format_escaped, #process_if, #process_output, #process_params, #process_render, #process_string_interp, #raw_call?, #safe_input_attribute?, #setup, #xml_escaped?

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, #github_url, #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, #template_path_to_name, #true?, #truncate_table, #underscore

Methods included from ProcessorHelper

#class_name, #process_all, #process_all!, #process_call_args, #process_class, #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

#check_render(result) ⇒ Object


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# File 'lib/brakeman/checks/check_render_inline.rb', line 14

def check_render result
  return if duplicate? result
  add_result result

  call = result[:call]

  if node_type? call, :render and
    (call.render_type == :text or call.render_type == :inline)

    render_value = call[2]

    if input = has_immediate_user_input?(render_value)
      warn :result => result,
        :warning_type => "Cross Site Scripting",
        :warning_code => :cross_site_scripting_inline,
        :message => "Unescaped #{friendly_type_of input} rendered inline",
        :code => input.match,
        :confidence => CONFIDENCE[:high]
    elsif input = has_immediate_model?(render_value)
      warn :result => result,
        :warning_type => "Cross Site Scripting",
        :warning_code => :cross_site_scripting_inline,
        :message => "Unescaped model attribute rendered inline",
        :code => input,
        :confidence => CONFIDENCE[:med]
    end
  end
end

#run_checkObject


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# File 'lib/brakeman/checks/check_render_inline.rb', line 6

def run_check
  setup

  tracker.find_call(:target => nil, :method => :render).each do |result|
    check_render result
  end
end