Class: Brakeman::CheckDigestDoS

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

Constant Summary

Constants inherited from BaseCheck

BaseCheck::CONFIDENCE

Constants included from Util

Util::ALL_COOKIES, Util::ALL_PARAMETERS, Util::COOKIES, Util::COOKIES_SEXP, Util::PARAMETERS, Util::PARAMS_SEXP, Util::PATH_PARAMETERS, Util::QUERY_PARAMETERS, Util::REQUEST_COOKIES, 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_dstr, #process_if, #process_params

Methods included from Util

#array?, #block?, #call?, #camelize, #class_name, #constant?, #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, #rails_version, #regexp?, #relative_path, #request_env?, #request_value?, #result?, #set_env_defaults, #sexp?, #string?, #string_interp?, #symbol?, #table_to_csv, #template_path_to_name, #true?, #truncate_table, #underscore

Methods included from ProcessorHelper

#current_file_name, #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

#run_check ⇒ Object 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/brakeman/checks/check_digest_dos.rb', line 8

def run_check
  message = "Vulnerability in digest authentication (CVE-2012-3424). Upgrade to Rails version "

  if version_between? "3.0.0", "3.0.15"
    message << "3.0.16"
  elsif version_between? "3.1.0", "3.1.6"
    message << "3.1.7"
  elsif version_between? "3.2.0", "3.2.5"
    message << "3.2.7"
  else
    return
  end

  if with_http_digest?
    confidence = :high
  else
    confidence = :weak
  end

  warn :warning_type => "Denial of Service",
    :warning_code => :CVE_2012_3424,
    :message => message,
    :confidence => confidence,
    :link_path => "https://groups.google.com/d/topic/rubyonrails-security/vxJjrc15qYM/discussion",
    :gem_info => gemfile_or_environment
end

#with_http_digest? ⇒ Boolean

Returns:

  • (Boolean) 


35
36
37
 
# File 'lib/brakeman/checks/check_digest_dos.rb', line 35

def with_http_digest?
  not tracker.find_call(:target => false, :method => [:authenticate_or_request_with_http_digest, :authenticate_with_http_digest]).empty?
end