Class: Arachni::Checks::InsecureCookies

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

Overview

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, NestedCookie, 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

.infoObject


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# File 'components/checks/passive/grep/insecure_cookies.rb', line 25

def self.info
    {
        name:        'Insecure cookies',
        description: %q{
Logs cookies that are served over an encrypted channel but without having the
`secure` flag set.
},
        elements:    [ Element::Cookie ],
        author:      'Tasos "Zapotek" Laskos <[email protected]>',
        version:     '0.1.5',

        issue:       {
            name:            %q{Insecure cookie},
            description:     %q{
HTTP by itself is a stateless protocol. Therefore the server is unable to determine
which requests are performed by which client, and which clients are authenticated
or unauthenticated.

The use of HTTP cookies within the headers, allows a web server to identify each
individual client and can therefore determine which clients hold valid
authentication, from those that do not. These are known as session cookies.

When a cookie is set by the server (sent the header of an HTTP response) there
are several flags that can be set to configure the properties of the cookie and
how it is to be handled by the browser.

One of these flags is known as the `secure` flag. When the secure flag is set,
the browser will prevent it from being sent over a clear text channel (HTTP) and
only allow it to be sent when an encrypted channel is used (HTTPS).

Arachni discovered that a cookie was set by the server without the secure flag
being set. Although the initial setting of this cookie was via an HTTPS
connection, any HTTP link to the same server will result in the cookie being
send in clear text.
},
            references:  {
                'SecureFlag - OWASP' => 'https://www.owasp.org/index.php/SecureFlag'
            },
            cwe:             200,
            severity:        Severity::INFORMATIONAL,
            remedy_guidance: %q{
The initial steps to remedy this should be determined on whether the cookie is
sensitive in nature.
If the cookie does not contain any sensitive information then the risk of this
vulnerability is reduced; however, if the cookie does contain sensitive
information, then the server should ensure that the cookie has its `secure` flag set.
}
        }
    }
end

Instance Method Details

#runObject


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# File 'components/checks/passive/grep/insecure_cookies.rb', line 12

def run
    return if page.parsed_url.scheme != 'https'

    # Page#cookies will also include stuff from the cookiejar, we only want
    # cookies for this page.
    (page.dom.cookies | page.parser.cookies).each do |cookie|
        next if cookie.secure? || audited?( cookie.name )

        log( vector: cookie )
        audited( cookie.name )
    end
end