Class: Arachni::Checks::CommonDirectories

Inherits:
Arachni::Check::Base show all
Defined in:
components/checks/passive/common_directories.rb

Overview

Common directories discovery check.

Looks for common, possibly sensitive, directories on the server.

See Also:

Author:

Constant Summary

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, Severity, UIForm, UIInput, VERSION, WEBSITE, WIKI, XML

Instance Attribute Summary

Attributes included from Arachni::Check::Auditor

#framework, #page

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

#read_file

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

.directoriesObject


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# File 'components/checks/passive/common_directories.rb', line 17

def self.directories
    @directories ||= read_file( 'directories.txt' )
end

.infoObject


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# File 'components/checks/passive/common_directories.rb', line 34

def self.info
    {
        name:        'Common directories',
        description: %q{Tries to find common directories on the server.},
        elements:    [ Element::Server ],
        author:      'Tasos "Zapotek" Laskos <[email protected]> ',
        version:     '0.2.3',

        issue:       {
            name:            %q{Common directory},
            description:     %q{
Web applications are often made up of multiple files and directories.

It is possible that over time some directories may become unreferenced (unused)
by the web application and forgotten about by the administrator/developer.
Because web applications are built using common frameworks, they contain common
directories that can be discovered (independent of server).

During the initial recon stages of an attack, cyber-criminals will attempt to
locate unreferenced directories in the hope that the directory will assist in further
compromise of the web application.
To achieve this they will make thousands of requests using word lists containing
common names.
The response headers from the server will then indicate if the directory exists.

Arachni also contains a list of common directory names which it will attempt to access.
},
            references: {
                'CWE'   => 'http://cwe.mitre.org/data/definitions/538.html',
                'OWASP' => 'https://www.owasp.org/index.php/Forced_browsing'
            },
            tags:            %w(path directory common discovery),
            cwe:             538,
            severity:        Severity::MEDIUM,
            remedy_guidance: %q{
If directories are unreferenced then they should be removed from the web root
and/or the application directory.

Preventing access without authentication may also be an option and can stop a
client from being able to view the contents of a file, however it is still likely
that the directory structure will be able to be discovered.

Using obscure directory names is implementing security through obscurity and is
not a recommended option.
}
        }
    }
end

Instance Method Details

#runObject


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# File 'components/checks/passive/common_directories.rb', line 21

def run
    return if page.code != 200

    path = get_path( page.url )
    return if audited?( path )

    self.class.directories.each do |dirname|
        log_remote_directory_if_exists( path + dirname + '/' )
    end

    audited( path )
end