Class: Brakeman::CheckSSLVerify

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

Overview

Checks if verify_mode= is called with OpenSSL::SSL::VERIFY_NONE

Constant Summary collapse

SSL_VERIFY_NONE = 
s(:colon2, s(:colon2, s(:const, :OpenSSL), :SSL), :VERIFY_NONE)

Constants inherited from BaseCheck

BaseCheck::CONFIDENCE

Constants included from Util

Util::ALL_COOKIES, Util::ALL_PARAMETERS, Util::COOKIES, Util::COOKIES_SEXP, Util::DIR_CONST, Util::LITERALS, Util::PARAMETERS, Util::PARAMS_SEXP, Util::PATH_PARAMETERS, Util::QUERY_PARAMETERS, Util::REQUEST_COOKIES, Util::REQUEST_ENV, Util::REQUEST_PARAMETERS, Util::REQUEST_PARAMS, Util::REQUEST_REQUEST_PARAMETERS, Util::SAFE_LITERAL, Util::SESSION, Util::SESSION_SEXP, Util::SIMPLE_LITERALS

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_array, #process_call, #process_cookies, #process_default, #process_dstr, #process_if, #process_params

Methods included from Messages

#msg, #msg_code, #msg_cve, #msg_file, #msg_input, #msg_lit, #msg_plain, #msg_version

Methods included from Util

#all_literals?, #array?, #block?, #call?, #camelize, #class_name, #constant?, #contains_class?, #cookies?, #dir_glob?, #false?, #hash?, #hash_access, #hash_insert, #hash_iterate, #hash_values, #integer?, #kwsplat?, #literal?, #make_call, #node_type?, #number?, #params?, #pluralize, #rails_version, #recurse_check?, #regexp?, #remove_kwsplat, #request_headers?, #request_value?, #result?, #safe_literal, #safe_literal?, #safe_literal_target?, #set_env_defaults, #sexp?, #simple_literal?, #string?, #string_interp?, #symbol?, #template_path_to_name, #true?, #underscore

Methods included from ProcessorHelper

#current_file, #process_all, #process_all!, #process_call_args, #process_call_defn?, #process_class, #process_module

Methods inherited from SexpProcessor

#in_context, #initialize, #process, processors, #scope

Constructor Details

This class inherits a constructor from Brakeman::BaseCheck

Instance Method Details

#check_http_start ⇒ Object 



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# File 'lib/brakeman/checks/check_ssl_verify.rb', line 27

def check_http_start
  tracker.find_call(:target => :'Net::HTTP', :method => :start).each { |call| process_http_start_result call }
end

#check_open_ssl_verify_none ⇒ Object 



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# File 'lib/brakeman/checks/check_ssl_verify.rb', line 17

def check_open_ssl_verify_none
  tracker.find_call(:method => :verify_mode=).each {|call| process_verify_mode_result(call) }
end

#process_http_start_result(result) ⇒ Object 



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# File 'lib/brakeman/checks/check_ssl_verify.rb', line 31

def process_http_start_result result
  arg = result[:call].last_arg

  if hash? arg and hash_access(arg, :verify_mode) == SSL_VERIFY_NONE
    warn_about_ssl_verification_bypass result
  end
end

#process_verify_mode_result(result) ⇒ Object 



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# File 'lib/brakeman/checks/check_ssl_verify.rb', line 21

def process_verify_mode_result result
  if result[:call].last_arg == SSL_VERIFY_NONE
    warn_about_ssl_verification_bypass result
  end
end

#run_check ⇒ Object 



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# File 'lib/brakeman/checks/check_ssl_verify.rb', line 12

def run_check
  check_open_ssl_verify_none
  check_http_start
end

#warn_about_ssl_verification_bypass(result) ⇒ Object 



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# File 'lib/brakeman/checks/check_ssl_verify.rb', line 39

def warn_about_ssl_verification_bypass result
  return unless original? result

  warn :result => result,
    :warning_type => "SSL Verification Bypass",
    :warning_code => :ssl_verification_bypass,
    :message => "SSL certificate verification was bypassed",
    :confidence => :high,
    :cwe_id => [295]
end