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Microsoft Windows: User Account Control: Detect application installations and prompt for elevation

2018-06-12T00:00:00
ID OPENVAS:1361412562310109245
Type openvas
Reporter Copyright (C) 2018 Greenbone Networks GmbH
Modified 2019-12-13T00:00:00

Description

This policy setting determines the behavior of application installation detection for the entire system. Some software might attempt to install itself after being given permission to run. The user may give permission for the program to run because the program is trusted. Then the user is prompted to install an unknown component. This security policy provides another way to identify and stop these attempted software installations before they can do damage.

(C) Microsoft Corporation 2017.

                                        
                                            # Copyright (C) 2018 Greenbone Networks GmbH
#
# Text descriptions excerpted from a referenced source are
# Copyright (C) of the respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.109245");
  script_version("2019-12-13T11:11:18+0000");
  script_tag(name:"last_modification", value:"2019-12-13 11:11:18 +0000 (Fri, 13 Dec 2019)");
  script_tag(name:"creation_date", value:"2018-06-12 14:47:04 +0200 (Tue, 12 Jun 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: User Account Control: Detect application installations and prompt for elevation");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_family("Policy");
  script_dependencies("smb_reg_service_pack.nasl");
  script_mandatory_keys("Compliance/Launch");

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

  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/user-account-control-detect-application-installations-and-prompt-for-elevation");

  script_tag(name:"summary", value:"This policy setting determines the behavior of application
installation detection for the entire system. Some software might attempt to install itself after
being given permission to run. The user may give permission for the program to run because the
program is trusted. Then the user is prompted to install an unknown component. This security policy
provides another way to identify and stop these attempted software installations before they can do
damage.

(C) Microsoft Corporation 2017.");

  exit(0);
}

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

target_os = "Microsoft Windows 7 or later";
win_min_ver = "6.1";
title = "User Account Control: Detect application installations and prompt for elevation";
solution = "Set following UI path accordingly:
Computer Configuration/Windows Settings/Security Settings/Local Policies/Security Options/" + title;
test_type = "RegKey";
type = "HKLM";
key = "Software\Microsoft\Windows\CurrentVersion\Policies\System";
item = "EnableInstallerDetection";
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);
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