Class: Metasploit::Framework::LoginScanner::GitLab

Inherits:
HTTP
  • Object
show all
Defined in:
lib/metasploit/framework/login_scanner/gitlab.rb

Overview

GitLab login scanner

Constant Summary collapse

CAN_GET_SESSION =

Inherit LIKELY_PORTS,LIKELY_SERVICE_NAMES, and REALM_KEY from HTTP

false
DEFAULT_PORT = 
80
PRIVATE_TYPES = 
[ :password ]

Constants inherited from HTTP

HTTP::AUTHORIZATION_HEADER, HTTP::DEFAULT_HTTP_NOT_AUTHED_CODES, HTTP::DEFAULT_HTTP_SUCCESS_CODES, HTTP::DEFAULT_REALM, HTTP::DEFAULT_SSL_PORT, HTTP::LIKELY_PORTS, HTTP::LIKELY_SERVICE_NAMES, HTTP::REALM_KEY

Instance Attribute Summary

Attributes inherited from HTTP

#digest_auth_iis, #evade_header_folding, #evade_method_random_case, #evade_method_random_invalid, #evade_method_random_valid, #evade_pad_fake_headers, #evade_pad_fake_headers_count, #evade_pad_get_params, #evade_pad_get_params_count, #evade_pad_method_uri_count, #evade_pad_method_uri_type, #evade_pad_post_params, #evade_pad_post_params_count, #evade_pad_uri_version_count, #evade_pad_uri_version_type, #evade_shuffle_get_params, #evade_shuffle_post_params, #evade_uri_dir_fake_relative, #evade_uri_dir_self_reference, #evade_uri_encode_mode, #evade_uri_fake_end, #evade_uri_fake_params_start, #evade_uri_full_url, #evade_uri_use_backslashes, #evade_version_random_invalid, #evade_version_random_valid, #http_password, #http_success_codes, #http_username, #keep_connection_alive, #kerberos_authenticator_factory, #method, #ntlm_domain, #ntlm_send_lm, #ntlm_send_ntlm, #ntlm_send_spn, #ntlm_use_lm_key, #ntlm_use_ntlmv2, #ntlm_use_ntlmv2_session, #uri, #user_agent, #vhost

Instance Method Summary collapse

Methods inherited from HTTP

#authentication_required?, #build_http_service_opts, #build_service_opts, #db, #send_request, #service_as_result

Methods included from Msf::Auxiliary::Report

#active_db?, #create_cracked_credential, #create_credential, #create_credential_and_login, #create_credential_login, #db, #db_warning_given?, #get_client, #get_host, #inside_workspace_boundary?, #invalidate_login, #mytask, #myworkspace, #myworkspace_id, #report_auth_info, #report_client, #report_exploit, #report_host, #report_loot, #report_note, #report_service, #report_vuln, #report_web_form, #report_web_page, #report_web_site, #report_web_vuln, #store_cred, #store_local, #store_loot

Methods included from Require

optionally, optionally_active_record_railtie, optionally_include_metasploit_credential_creation, #optionally_include_metasploit_credential_creation, optionally_require_metasploit_db_gem_engines

Instance Method Details

#attempt_login(credential) ⇒ Object 



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# File 'lib/metasploit/framework/login_scanner/gitlab.rb', line 50

def (credential)
  result_opts = {
    credential: credential,
    **service_as_result(service_opts)
  }
  begin
    # Get a valid session cookie and authenticity_token for the next step
    res = send_request(
      'method' => 'GET',
      'cookie' => 'request_method=GET',
      'uri'    => uri
    )

    if res.body.include? 'user[email]'
      user_field = 'user[email]'
    elsif res.body.include? 'user[login]'
      user_field = 'user[login]'
    else
      fail RuntimeError, 'Not a valid GitLab login page'
    end

    local_session_cookie = res.get_cookies.scan(/(_gitlab_session=[A-Za-z0-9%-]+)/).flatten[0]
    auth_token = res.body.scan(/<input name="authenticity_token" type="hidden" value="(.*?)"/).flatten[0]

    # New versions of GitLab use an alternative scheme
    # Try it, if the old one was not successful
    auth_token = res.body.scan(/<input type="hidden" name="authenticity_token" value="(.*?)"/).flatten[0] unless auth_token

    fail RuntimeError, 'Unable to get Session Cookie' unless local_session_cookie
    fail RuntimeError, 'Unable to get Authentication Token' unless auth_token

    # Perform the actual login
    res = send_request(
                            'method' => 'POST',
                            'cookie' => local_session_cookie,
                            'uri'    => uri,
                            'vars_post' =>
                              {
                                'utf8' => "\xE2\x9C\x93",
                                'authenticity_token' => auth_token,
                                "#{user_field}" => credential.public,
                                'user[password]' => credential.private,
                                'user[remember_me]' => 0
                              }
    )

    if res && res.code == 302
      result_opts.merge!(status: Metasploit::Model::Login::Status::SUCCESSFUL, proof: res.headers)
    else
      result_opts.merge!(status: Metasploit::Model::Login::Status::INCORRECT, proof: res)
    end
  rescue ::EOFError, Errno::ETIMEDOUT ,Errno::ECONNRESET, Rex::ConnectionError, OpenSSL::SSL::SSLError, ::Timeout::Error => e
    result_opts.merge!(status: Metasploit::Model::Login::Status::UNABLE_TO_CONNECT, proof: e)
  end
  Result.new(result_opts)
end

#check_setup ⇒ false, String

Checks if the target is a GitLab instance

Returns:

  • (false) —

    if the target looks like GitLab

  • (String) —

    a human-readable error message if it doesn't



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# File 'lib/metasploit/framework/login_scanner/gitlab.rb', line 17

def check_setup
  res = send_request(
    'method' => 'GET',
    'cookie' => 'request_method=GET',
    'uri'    => uri
  )

  return 'Unable to connect to the GitLab login page' unless res
  return 'Unable to locate GitLab login page (Is this really GitLab?)' unless res.code == 200 && (res.body.include?('user[email]') || res.body.include?('user[login]'))

  if res.body.include?('user[email]')
    framework_module&.vprint_status('GitLab v5 login page')
  elsif res.body.include?('user[login]')
    framework_module&.vprint_status('GitLab v7 login page')
  end

  report_service(service_opts)

  false
end

#service_opts ⇒ Object 



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# File 'lib/metasploit/framework/login_scanner/gitlab.rb', line 38

def service_opts
  build_service_opts('gitlab')
end

#set_sane_defaults ⇒ Object 



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# File 'lib/metasploit/framework/login_scanner/gitlab.rb', line 43

def set_sane_defaults
  self.uri = '/users/sign_in' if uri.nil?
  self.method = 'POST' if method.nil?

  super
end