Microsoft Windows: Microsoft network server: Digitally sign communications (if client agrees)

2018-06-08T00:00:00
ID OPENVAS:1361412562310109214
Type openvas
Reporter Copyright (c) 2018 Greenbone Networks GmbH
Modified 2018-09-21T00:00:00

Description

This test checks the setting for policy

                                        
                                            ##############################################################################
# OpenVAS Vulnerability Test
# $Id: win_ns_sign_communication_possible.nasl 11532 2018-09-21 19:07:30Z cfischer $
#
# Check value for Microsoft network server: Digitally sign communications (if client agrees)
#
# Authors:
# Emanuel Moss <emanuel.moss@greenbone.net>
#
# Copyright:
# Copyright (c) 2018 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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("1.3.6.1.4.1.25623.1.0.109214");
  script_version("$Revision: 11532 $");
  script_tag(name:"last_modification", value:"$Date: 2018-09-21 21:07:30 +0200 (Fri, 21 Sep 2018) $");
  script_tag(name:"creation_date", value:"2018-06-08 15:44:47 +0200 (Fri, 08 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: Microsoft network server: Digitally sign communications (if client agrees)');
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2018 Greenbone Networks GmbH");
  script_family("Policy");
  script_dependencies("smb_reg_service_pack.nasl");
  script_add_preference(name:"Value", type:"radio", value:"1;0");
  script_mandatory_keys("Compliance/Launch");
  script_tag(name:"summary", value:"This test checks the setting for policy
'Microsoft network server: Digitally sign communications (if client agrees)' on
Windows hosts (at least Windows 7).

The policy setting determines whether the SMB server will negotiate SMB packet
signing with clients that request it.");
  exit(0);
}

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

if(!get_kb_item("SMB/WindowsVersion")){
  policy_logging(text:'Host is no Microsoft Windows System or it is not possible
to query the registry.');
  exit(0);
}

if(get_kb_item("SMB/WindowsVersion") < "6.1"){
  policy_logging(text:'Host is not at least a Microsoft Windows 7 system.
Older versions of Windows are not supported any more. Please update the
Operating System.');
  exit(0);
}

title = 'Microsoft network server: Digitally sign communications (if client agrees)';
fixtext = 'Set following UI path accordingly:
Computer Configuration/Windows Settings/Security Settings/Local Policies/Security Options/Microsoft network server: Digitally sign communications (if client agrees)';
type = 'HKLM';
key = 'SYSTEM\\CurrentControlSet\\Services\\LanManServer\\Parameters';
item = 'EnableSecuritySignature';
default = script_get_preference('Value');
value = registry_get_dword(key:key, item:item, type:type);

if( value == ''){
  value = '0';
}

if(int(value) == int(default)){
  compliant = 'yes';
}else{
  compliant = 'no';
}

policy_logging(text:'"' + title + '" is set to: ' + value);
policy_add_oid();
policy_set_dval(dval:default);
policy_fixtext(fixtext:fixtext);
policy_control_name(title:title);
policy_set_kb(val:value);
policy_set_compliance(compliant:compliant);

exit(0);