Land #5112, Nessus REST Login Module
sinn3r
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284ef5bbbb
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require 'metasploit/framework/login_scanner/http'
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module Metasploit
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module Framework
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module LoginScanner
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class Nessus < HTTP
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DEFAULT_PORT = 8834
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PRIVATE_TYPES = [ :password ]
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LIKELY_SERVICE_NAMES = [ 'nessus' ]
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LOGIN_STATUS = Metasploit::Model::Login::Status # Shorter name
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# Checks if the target is a Tenable Nessus server.
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#
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# @return [Boolean] TrueClass if target is Nessus server, otherwise FalseClass
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def check_setup
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login_uri = "/server/properties"
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res = send_request({'uri'=> login_uri})
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if res && res.body.include?('Nessus')
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return true
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end
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false
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end
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# Actually doing the login. Called by #attempt_login
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#
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# @param username [String] The username to try
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# @param password [String] The password to try
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# @return [Hash]
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# * :status [Metasploit::Model::Login::Status]
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# * :proof [String] the HTTP response body
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def get_login_state(username, password)
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login_uri = "#{uri}"
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res = send_request({
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'uri' => login_uri,
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'method' => 'POST',
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'vars_post' => {
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'username' => username,
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'password' => password
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}
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})
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unless res
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return {:status => LOGIN_STATUS::UNABLE_TO_CONNECT, :proof => res.to_s}
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end
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if res.code == 200 && res.body =~ /token/
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return {:status => LOGIN_STATUS::SUCCESSFUL, :proof => res.body.to_s}
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end
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{:status => LOGIN_STATUS::INCORRECT, :proof => res.to_s}
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end
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# Attempts to login to Nessus.
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#
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# @param credential [Metasploit::Framework::Credential] The credential object
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# @return [Result] A Result object indicating success or failure
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def attempt_login(credential)
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result_opts = {
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credential: credential,
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status: Metasploit::Model::Login::Status::INCORRECT,
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proof: nil,
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host: host,
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port: port,
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protocol: 'tcp'
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}
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begin
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result_opts.merge!(get_login_state(credential.public, credential.private))
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rescue ::Rex::ConnectionError => e
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# Something went wrong during login. 'e' knows what's up.
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result_opts.merge!(status: LOGIN_STATUS::UNABLE_TO_CONNECT, proof: e.message)
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end
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Result.new(result_opts)
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end
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def set_sane_defaults
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super
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# nessus_rest_login has the same default in TARGETURI, but rspec doesn't check nessus_rest_login
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# so we have to set the default here, too.
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self.uri = '/session'
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end
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end
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end
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end
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end
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##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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require 'metasploit/framework/login_scanner/nessus'
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require 'metasploit/framework/credential_collection'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::HttpClient
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include Msf::Auxiliary::AuthBrute
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include Msf::Auxiliary::Report
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include Msf::Auxiliary::Scanner
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def initialize(info={})
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super(update_info(info,
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'Name' => 'Nessus RPC Interface Login Utility',
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'Description' => %q{
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This module will attempt to authenticate to a Nessus server RPC interface.
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},
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'Author' => [ 'void_in' ],
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'License' => MSF_LICENSE
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))
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register_options(
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[
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Opt::RPORT(8834),
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OptString.new('TARGETURI', [ true, 'The path to the Nessus server login API', '/session']),
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OptBool.new('SSL', [true, 'Negotiate SSL for outgoing connections', true]),
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OptEnum.new('SSLVersion', [false, 'Specify the version of SSL that should be used', 'TLS1', ['SSL2', 'SSL3', 'TLS1']])
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], self.class)
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end
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# Initializes CredentialCollection and Nessus Scanner
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def init(ip)
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@cred_collection = Metasploit::Framework::CredentialCollection.new(
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blank_passwords: datastore['BLANK_PASSWORDS'],
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pass_file: datastore['PASS_FILE'],
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password: datastore['PASSWORD'],
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user_file: datastore['USER_FILE'],
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userpass_file: datastore['USERPASS_FILE'],
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username: datastore['USERNAME'],
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user_as_pass: datastore['USER_AS_PASS']
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)
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@scanner = Metasploit::Framework::LoginScanner::Nessus.new(
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host: ip,
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port: datastore['RPORT'],
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uri: datastore['TARGETURI'],
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cred_details: @cred_collection,
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stop_on_success: datastore['STOP_ON_SUCCESS'],
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bruteforce_speed: datastore['BRUTEFORCE_SPEED'],
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connection_timeout: 5
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)
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@scanner.ssl = datastore['SSL']
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@scanner.ssl_version = datastore['SSLVERSION']
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end
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# Reports a good login credential
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def do_report(ip, port, result)
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service_data = {
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address: ip,
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port: port,
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service_name: 'http',
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protocol: 'tcp',
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workspace_id: myworkspace_id
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}
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credential_data = {
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module_fullname: self.fullname,
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origin_type: :service,
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private_data: result.credential.private,
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private_type: :password,
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username: result.credential.public,
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}.merge(service_data)
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login_data = {
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core: create_credential(credential_data),
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last_attempted_at: DateTime.now,
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status: result.status,
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proof: result.proof
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}.merge(service_data)
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create_credential_login(login_data)
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end
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# Attempts to login
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def bruteforce(ip)
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@scanner.scan! do |result|
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case result.status
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when Metasploit::Model::Login::Status::SUCCESSFUL
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print_brute :level => :good, :ip => ip, :msg => "Success: '#{result.credential}'"
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do_report(ip, rport, result)
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when Metasploit::Model::Login::Status::UNABLE_TO_CONNECT
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vprint_brute :level => :verror, :ip => ip, :msg => result.proof
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invalidate_login(
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address: ip,
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port: rport,
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protocol: 'tcp',
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public: result.credential.public,
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private: result.credential.private,
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realm_key: result.credential.realm_key,
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realm_value: result.credential.realm,
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status: result.status,
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proof: result.proof
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)
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when Metasploit::Model::Login::Status::INCORRECT
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vprint_brute :level => :verror, :ip => ip, :msg => "Failed: '#{result.credential}'"
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invalidate_login(
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address: ip,
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port: rport,
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protocol: 'tcp',
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public: result.credential.public,
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private: result.credential.private,
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realm_key: result.credential.realm_key,
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realm_value: result.credential.realm,
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status: result.status,
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proof: result.proof
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)
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end
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end
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end
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# Start here
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def run_host(ip)
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init(ip)
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unless @scanner.check_setup
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print_brute :level => :error, :ip => ip, :msg => 'Target is not a Tenable Nessus server'
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return
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end
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bruteforce(ip)
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end
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end
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require 'spec_helper'
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require 'metasploit/framework/login_scanner/nessus'
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describe Metasploit::Framework::LoginScanner::Nessus do
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subject(:http_scanner) { described_class.new }
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it_behaves_like 'Metasploit::Framework::LoginScanner::Base', has_realm_key: true, has_default_realm: false
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it_behaves_like 'Metasploit::Framework::LoginScanner::RexSocket'
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let(:username) do
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'username'
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end
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let(:good_password) do
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'good_password'
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end
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let(:bad_password) do
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'bad_password'
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end
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let(:successful_auth_response) do
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res = Rex::Proto::Http::Response.new(200, 'OK')
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res.body = 'token'
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res
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end
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let(:fail_auth_response) do
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Rex::Proto::Http::Response.new(401, 'Unauthorized')
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end
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let(:response) do
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Rex::Proto::Http::Response.new(200, 'OK')
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end
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before(:each) do
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allow_any_instance_of(Rex::Proto::Http::Client).to receive(:request_cgi).with(any_args)
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allow_any_instance_of(Rex::Proto::Http::Client).to receive(:send_recv).with(any_args).and_return(response)
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allow_any_instance_of(Rex::Proto::Http::Client).to receive(:set_config).with(any_args)
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allow_any_instance_of(Rex::Proto::Http::Client).to receive(:close)
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allow_any_instance_of(Rex::Proto::Http::Client).to receive(:connect)
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end
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describe '#check_setup' do
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let(:msp_html_response) do
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res = Rex::Proto::Http::Response.new(200, 'OK')
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res.body = 'Nessus'
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res
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end
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context 'when target is Nessus' do
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let(:response) { msp_html_response }
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it 'returns true' do
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expect(http_scanner.check_setup).to be_truthy
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end
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end
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context 'when target is not Nessus' do
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it 'returns false' do
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expect(http_scanner.check_setup).to be_falsey
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end
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end
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end
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describe '#get_login_state' do
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it 'sends a login request to /session' do
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allow(http_scanner).to receive(:send_request).with(hash_including('uri'=>'/session')).and_return(response)
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http_scanner.get_login_state(username, good_password)
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end
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it 'sends a login request containing the username and password' do
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expected_hash = {
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'vars_post' => {
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"username" => username,
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"password" => good_password
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}
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}
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allow(http_scanner).to receive(:send_request).with(hash_including(expected_hash)).and_return(response)
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http_scanner.get_login_state(username, good_password)
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end
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context 'when the credential is valid' do
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let(:response) { successful_auth_response }
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it 'returns a hash indicating a successful login' do
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successful_status = Metasploit::Model::Login::Status::SUCCESSFUL
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expect(http_scanner.get_login_state(username, good_password)[:status]).to eq(successful_status)
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end
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end
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context 'when the creential is invalid' do
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let(:response) { fail_auth_response }
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it 'returns a hash indicating an incorrect cred' do
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incorrect_status = Metasploit::Model::Login::Status::INCORRECT
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expect(http_scanner.get_login_state(username, good_password)[:status]).to eq(incorrect_status)
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end
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end
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end
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describe '#attempt_login' do
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context 'when the credential is valid' do
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let(:response) { successful_auth_response }
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it 'returns a Result object indicating a successful login' do
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cred_obj = Metasploit::Framework::Credential.new(public: username, private: good_password)
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result = http_scanner.attempt_login(cred_obj)
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expect(result).to be_kind_of(::Metasploit::Framework::LoginScanner::Result)
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expect(result.status).to eq(Metasploit::Model::Login::Status::SUCCESSFUL)
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end
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end
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context 'when the credential is invalid' do
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let(:response) { fail_auth_response }
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it 'returns a Result object indicating an incorrect cred' do
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cred_obj = Metasploit::Framework::Credential.new(public: username, private: bad_password)
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result = http_scanner.attempt_login(cred_obj)
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expect(result).to be_kind_of(::Metasploit::Framework::LoginScanner::Result)
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expect(result.status).to eq(Metasploit::Model::Login::Status::INCORRECT)
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end
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end
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end
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end
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