Class: Arachni::Checks::InsecureCrossDomainPolicyAccess
- Inherits:
-
Arachni::Check::Base
- Object
- Arachni::Component::Base
- Arachni::Check::Base
- Arachni::Checks::InsecureCrossDomainPolicyAccess
- Defined in:
- components/checks/passive/insecure_cross_domain_policy_access.rb
Overview
Constant Summary collapse
- INSECURE_WILDCARDS =
[ '*', 'http://*', 'https://*' ]
Constants included from Arachni::Check::Auditor
Arachni::Check::Auditor::DOM_ELEMENTS_WITH_INPUTS, Arachni::Check::Auditor::ELEMENTS_WITH_INPUTS, Arachni::Check::Auditor::FILE_SIGNATURES, Arachni::Check::Auditor::FILE_SIGNATURES_PER_PLATFORM, Arachni::Check::Auditor::Format, Arachni::Check::Auditor::SOURCE_CODE_SIGNATURES_PER_PLATFORM
Constants included from Arachni
BANNER, Arachni::Cookie, Form, Header, JSON, Link, LinkTemplate, NestedCookie, Severity, UIForm, UIInput, VERSION, WEBSITE, WIKI, XML
Instance Attribute Summary
Attributes included from Arachni::Check::Auditor
Class Method Summary collapse
Instance Method Summary collapse
Methods inherited from Arachni::Check::Base
#browser_cluster, #clean_up, elements, exempt_platforms, has_exempt_platforms?, has_platforms?, #initialize, platforms, #plugins, prefer, #preferred, preferred, #prepare, #session, supports_platforms?
Methods included from Arachni::Check::Auditor
#audit, #audit_differential, #audit_signature, #audit_timeout, #audited, #audited?, #buffered_audit, #each_candidate_dom_element, #each_candidate_element, has_timeout_candidates?, #http, #initialize, #log, #log_issue, #log_remote_file, #log_remote_file_if_exists, #match_and_log, #max_issues, #preferred, reset, #skip?, timeout_audit_run, #trace_taint, #with_browser, #with_browser_cluster
Methods inherited from Arachni::Component::Base
author, description, fullname, #shortname, shortname, shortname=, version
Methods included from Arachni::Component::Output
#depersonalize_output, #depersonalize_output?, #intercept_print_message
Methods included from UI::Output
#caller_location, #debug?, #debug_level, #debug_level_1?, #debug_level_2?, #debug_level_3?, #debug_level_4?, #debug_off, #debug_on, #disable_only_positives, #error_buffer, #error_log_fd, #error_logfile, #has_error_log?, #included, #log_error, #mute, #muted?, #only_positives, #only_positives?, #print_bad, #print_debug, #print_debug_backtrace, #print_debug_exception, #print_debug_level_1, #print_debug_level_2, #print_debug_level_3, #print_debug_level_4, #print_error, #print_error_backtrace, #print_exception, #print_info, #print_line, #print_ok, #print_status, #print_verbose, #reroute_to_file, #reroute_to_file?, reset_output_options, #set_error_logfile, #unmute, #verbose?, #verbose_off, #verbose_on
Methods included from Arachni::Component::Utilities
Methods included from Utilities
#available_port, available_port_mutex, #bytes_to_kilobytes, #bytes_to_megabytes, #caller_name, #caller_path, #cookie_decode, #cookie_encode, #cookies_from_file, #cookies_from_parser, #cookies_from_response, #exception_jail, #exclude_path?, #follow_protocol?, #form_decode, #form_encode, #forms_from_parser, #forms_from_response, #full_and_absolute_url?, #generate_token, #get_path, #hms_to_seconds, #html_decode, #html_encode, #include_path?, #links_from_parser, #links_from_response, #normalize_url, #page_from_response, #page_from_url, #parse_set_cookie, #path_in_domain?, #path_too_deep?, #port_available?, #rand_port, #random_seed, #redundant_path?, #regexp_array_match, #remove_constants, #request_parse_body, #seconds_to_hms, #skip_page?, #skip_path?, #skip_resource?, #skip_response?, #to_absolute, #uri_decode, #uri_encode, #uri_parse, #uri_parse_query, #uri_parser, #uri_rewrite
Methods included from Arachni
URI, collect_young_objects, #get_long_win32_filename, jruby?, null_device, profile?, windows?
Constructor Details
This class inherits a constructor from Arachni::Check::Base
Class Method Details
.info ⇒ Object
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# File 'components/checks/passive/insecure_cross_domain_policy_access.rb', line 47 def self.info { name: 'Insecure cross-domain policy (allow-access-from)', description: %q{ Checks `crossdomain.xml` files for `allow-access-from` wildcard policies. }, author: 'Tasos Laskos <[email protected]>', version: '0.1', elements: [ Element::Server ], issue: { name: %q{Insecure cross-domain policy (allow-access-from)}, description: %q{ The browser security model normally prevents web content from one domain from accessing data from another domain. This is commonly known as the "same origin policy". URL policy files grant cross-domain permissions for reading data. They permit operations that are not permitted by default. The URL policy file for Silverlight is located, by default, in the root directory of the target server, with the name `crossdomain.xml` (for example, at `www.example.com/crossdomain.xml`). When a domain is specified in `crossdomain.xml`, the site declares that it is willing to allow the operators of any servers in that domain to obtain any document on the server where the policy file resides. The `crossdomain.xml` file deployed on this website opens the server to all domains (use of a single asterisk "*" as a pure wildcard is supported). }, references: { 'OWASP' => 'https://www.owasp.org/index.php/Test_Cross_Origin_Resource_Sharing_%28OTG-CLIENT-007%29', 'Adobe' => 'http://blogs.adobe.com/stateofsecurity/2007/07/crossdomain_policy_files_1.html' }, cwe: 16, severity: Severity::LOW, remedy_guidance: %q{ Carefully evaluate which sites will be allowed to make cross-domain calls. Consider network topology and any authentication mechanisms that will be affected by the configuration or implementation of the cross-domain policy. } } } end |
Instance Method Details
#check_and_log(response) ⇒ Object
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# File 'components/checks/passive/insecure_cross_domain_policy_access.rb', line 27 def check_and_log( response ) return if response.code != 200 policy = Nokogiri::XML( response.body ) return if !policy INSECURE_WILDCARDS.each do |wildcard| permissive_access = policy.search( "allow-access-from[domain='#{wildcard}']" ) next if permissive_access.empty? log( proof: permissive_access.to_xml, vector: Element::Server.new( response.url ), response: response ) return end end |
#run ⇒ Object
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# File 'components/checks/passive/insecure_cross_domain_policy_access.rb', line 19 def run url = "#{page.parsed_url.up_to_path}crossdomain.xml" return if audited?( url ) audited( url ) http.get( url, performer: self, &method(:check_and_log) ) end |