Microsoft Office: Block opening of pre-release versions of file formats new to PowerPoint 2013

2018-10-10T00:00:00
ID OPENVAS:1361412562310109668
Type openvas
Reporter Copyright (c) 2018 Greenbone Networks GmbH
Modified 2018-10-11T00:00:00

Description

This test checks the setting for policy

                                        
                                            ##############################################################################
# OpenVAS Vulnerability Test
# $Id: office_ppt_converters.nasl 11843 2018-10-11 14:33:21Z emoss $
#
# Check value for Block Opening of Pre-Release Versions of File Formats New
# to PowerPoint Through the Compatibility Pack for Office and PowerPoint
# Converter
#
# 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("1.3.6.1.4.1.25623.1.0.109668");
  script_version("$Revision: 11843 $");
  script_tag(name:"last_modification", value:"$Date: 2018-10-11 16:33:21 +0200 (Thu, 11 Oct 2018) $");
  script_tag(name:"creation_date", value:"2018-10-10 15:20:10 +0200 (Wed, 10 Oct 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 Office: Block opening of pre-release versions of file formats new to PowerPoint 2013');
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2018 Greenbone Networks GmbH");
  script_family("Policy");
  script_dependencies("secpod_ms_office_detection_900025.nasl", "os_detection.nasl");
  script_add_preference(name:"Value", type:"radio", value:"1;0");
  script_mandatory_keys("Compliance/Launch", "Host/runs_windows", "MS/Office/Ver");
  script_tag(name:"summary", value:"This test checks the setting for policy 'Block opening of
pre-release versions of file formats new to PowerPoint 2013 through the Compatibility Pack for
Office 2013 and PowerPoint 2013 Converter' for Microsoft Office 2013 (at least) on Windows hosts.

The setting controls whether users with the Microsoft Office Compatibility Pack for Word, Excel, and
PowerPoint 2013 File Formats installed can open Office Open XML files saved with pre-release
versions of PowerPoint 2013. PowerPoint Open XML files usually have the following extensions: .pptx,
.pptm, .potx, .potm, .ppsx, .ppsm, .ppam, .thmx, .xml.");
  exit(0);
}

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

cpe = get_app_version(cpe:"cpe:/a:microsoft:office");
if(!cpe){
	policy_logging(text:'Not found at least Microsoft Office 2013 installation.');
	exit(0);
}
office_year = substr(cpe,0,3);

full_version = get_kb_item("MS/Office/Ver");
if(version_is_less(version:full_version, test_version:'15')){
	policy_logging(text:'Not found at least Microsoft Office 2013 installation.');
	exit(0);
}
major_version = substr(full_version,0,3);

title = 'Block opening of pre-release versions of file formats new to PowerPoint 2013 through the Compatibility Pack for Office 2013 and PowerPoint 2013 Converter';
fixtext = 'Set following UI path accordingly:
User Configuration/Administrative Templates/Microsoft Office ' + office_year + '/Office 2016 Converters/' + title;
type = 'HKU';
key_root = 'Software\\Policies\\Microsoft\\Office\\' + major_version + '\\powerpoint\\security\\fileblock';
item = 'powerpoint12betafilesfromconverters';
default = script_get_preference('Value');
v = make_array();

uids = registry_enum_keys(key:'SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ProfileList', type:'HKLM');
foreach uid (uids){
  if(uid =~ "S-1-5-21-"){
    if(registry_key_exists(key:uid, type:'HKU')){
      key = uid + '\\' + key_root;
      value = registry_get_dword(key:key, item:item, type:type);
      if(!value){
        value = '1';
      }
      v = uid + ': ' + value + '\n';
      policy_set_kb_hcu(id:uid, val:value);
      if(value != default){
        compliant = 'no';
      }
    }
  }
}

if(!compliant){
  compliant = 'yes';
}

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

exit(0);