Microsoft Security Essentials Remote Code Execution Vulnerability Jul17

2017-07-14T00:00:00
ID OPENVAS:1361412562310811492
Type openvas
Reporter Copyright (C) 2017 Greenbone Networks GmbH
Modified 2017-07-14T00:00:00

Description

This host is installed with Security Essentials and is prone to remote code execution vulnerability.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_ms_security_essentials_rce_vuln_jul17.nasl 6730 2017-07-14 13:26:15Z santu $
#
# Microsoft Security Essentials Remote Code Execution Vulnerability Jul17
#
# Authors:
# Kashinath T <tkashinath@secpod.com>
#
# Copyright:
# Copyright (C) 2017 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("1.3.6.1.4.1.25623.1.0.811492");
  script_version("$Revision: 6730 $");
  script_cve_id("CVE-2017-8558");
  script_bugtraq_id(99262);
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"$Date: 2017-07-14 15:26:15 +0200 (Fri, 14 Jul 2017) $");
  script_tag(name:"creation_date", value:"2017-07-14 14:07:22 +0530 (Fri, 14 Jul 2017)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Security Essentials Remote Code Execution Vulnerability Jul17");

  script_tag(name: "summary" , value:"This host is installed with Security
  Essentials and is prone to remote code execution vulnerability.");

  script_tag(name: "vuldetect" , value:"Get the vulnerable file version and
  check appropriate patch is applied or not.");

  script_tag(name: "insight" , value:"The flaw exists as the Microsoft Malware
  Protection Engine does not properly scan a specially crafted file leading to
  memory corruption.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to execute arbitrary code in the security context of the LocalSystem account and
  take control of the system. An attacker could then install programs; view, change,
  or delete data; or create new accounts with full user rights.

  Impact Level: System");

  script_tag(name:"affected", value:"Microsoft Security Essentials");

  script_tag(name:"solution", value:"Microsoft Malware Protection Engine's built-in
  mechanism for the automatic detection and deployment of updates will apply the
  update within 48 hours of release.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name : "URL" , value : "https://support.microsoft.com/en-us/help/2510781");
  script_xref(name : "URL" , value : "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_reg_enum.nasl");
  script_mandatory_keys("SMB/WindowsVersion");
  exit(0);
}


include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

## Variables Initialization
def_version = "";
key = "";
report = "";

## Windows Essential Key exists
key = "SOFTWARE\Microsoft\Microsoft Antimalware";
if(!registry_key_exists(key:key)){
  exit(0);
}

## Get Security Essentials engine version
def_version = registry_get_sz(key:"SOFTWARE\Microsoft\Microsoft Antimalware\Signature Updates",
                              item:"EngineVersion");
if(!def_version){
  exit(0);
}

##Check for vuln version
##First version of the Microsoft Malware Protection Engine with this vulnerability addressed
if(version_is_less(version:def_version, test_version:"1.1.13903.0"))
{
   report = 'Installed version : ' + def_version + '\n' +
            'Vulnerable range: Less than 1.1.13903.0';
   security_message(data:report);
   exit(0);
}
exit(0);