Microsoft Windows: Configure Solicited Remote Assistance

# SPDX-FileCopyrightText: 2018 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.109543");
  script_version("2023-08-25T05:06:04+0000");
  script_tag(name:"last_modification", value:"2023-08-25 05:06:04 +0000 (Fri, 25 Aug 2023)");
  script_tag(name:"creation_date", value:"2018-08-07 14:04:55 +0200 (Tue, 07 Aug 2018)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:S/C:N/I:N/A:N");
  script_tag(name:"qod", value:"97");
  script_name("Microsoft Windows: Configure Solicited Remote Assistance");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Policy");
  script_dependencies("compliance_tests.nasl", "smb_reg_service_pack.nasl");
  script_mandatory_keys("Compliance/Launch");

  script_add_preference(name:"Value", type:"radio", value:"0;1", id:1);

  script_xref(name:"Policy", value:"CIS Microsoft Windows 10 Enterprise (Release 22H2) Benchmark v2.0.0: 18.9.34.2 (L1) Ensure 'Configure Solicited Remote Assistance' is set to 'Disabled'");
  script_xref(name:"Policy", value:"CIS Microsoft Windows 10 Enterprise (Release 2004) Benchmark v1.9.1: 18.8.36.2 (L1) Ensure 'Configure Solicited Remote Assistance' is set to 'Disabled'");
  script_xref(name:"Policy", value:"CIS Microsoft Windows Server 2019 RTM (Release 1809) Benchmark v1.1.0: 18.8.36.2 (L1) Ensure 'Configure Solicited Remote Assistance' is set to 'Disabled'");
  script_xref(name:"Policy", value:"CIS Controls Version 7: 5.1 Establish Secure Configurations");
  script_xref(name:"URL", value:"https://www.microsoft.com/en-us/download/confirmation.aspx?id=25250");

  script_tag(name:"summary", value:"This policy setting allows you to turn on or turn off Solicited
(Ask for) Remote Assistance on this computer.

If you enable this policy setting, users on this computer can use email or file transfer to ask
someone for help. Also, users can use instant messaging programs to allow connections to this
computer, and you can configure additional Remote Assistance settings.

If you disable this policy setting, users on this computer cannot use email or file transfer to ask
someone for help. Also, users cannot use instant messaging programs to allow connections to this
computer.

If you do not configure this policy setting, users can turn on or turn off Solicited (Ask for)
Remote Assistance themselves in System Properties in Control Panel. Users can also configure Remote
Assistance settings.

(C) 2015 Microsoft Corporation.");

  exit(0);
}

include("smb_nt.inc");
include("policy_functions.inc");
include("version_func.inc");

target_os = "Microsoft Windows 8.1 or later";
win_min_ver = "6.3";
title = "Configure Solicited Remote Assistance";
solution = "Set following UI path accordingly:
Computer Configuration/Administrative Templates/System/Remote Assistance/" + title;
test_type = "RegKey";
type = "HKLM";
key = "Software\policies\Microsoft\Windows NT\Terminal Services";
item = "fAllowToGetHelp";
reg_path = type + "\" + key + "!" + item;
default = script_get_preference("Value");

if(!policy_verify_win_ver(min_ver:win_min_ver)){
  results = policy_report_wrong_os(target_os:target_os);
}else{
  results = policy_match_exact_reg_dword(key:key, item:item, type:type, default:default);
}

value = results["value"];
comment = results["comment"];
compliant = results["compliant"];

policy_reporting(result:value, default:default, compliant:compliant, fixtext:solution,
  type:test_type, test:reg_path, info:comment);
policy_set_kbs(type:test_type, cmd:reg_path, default:default, solution:solution, title:title,
  value:value, compliant:compliant);

exit(0);