Microsoft Windows Media Center Remote Code Execution Vulnerability (3108669)

2015-12-09T00:00:00
ID OPENVAS:1361412562310806644
Type openvas
Reporter Copyright (C) 2015 Greenbone Networks GmbH
Modified 2017-05-23T00:00:00

Description

This host is missing an important security update according to Microsoft Bulletin MS15-134.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_ms15-134.nasl 6194 2017-05-23 09:04:00Z teissa $
#
# Microsoft Windows Media Center Remote Code Execution Vulnerability (3108669)
#
# Authors:
# Shakeel <bshakeel@secpod.com>
#
# Copyright:
# Copyright (C) 2015 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("1.3.6.1.4.1.25623.1.0.806644");
  script_version("$Revision: 6194 $");
  script_cve_id("CVE-2015-6127", "CVE-2015-6131");
  script_bugtraq_id(78512, 78516);
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"$Date: 2017-05-23 11:04:00 +0200 (Tue, 23 May 2017) $");
  script_tag(name:"creation_date", value:"2015-12-09 08:17:42 +0530 (Wed, 09 Dec 2015)");
  script_tag(name:"qod_type", value:"executable_version");
  script_name("Microsoft Windows Media Center Remote Code Execution Vulnerability (3108669)");

  script_tag(name: "summary" , value:"This host is missing an important security
  update according to Microsoft Bulletin MS15-134.");

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

  script_tag(name: "insight" , value:"Multiple flaws exist due to multiple errors
  in the Windows Media Center which does not sanitize the input passed
  via the crafted Media Center link (.mcl) file.");

  script_tag(name: "impact" , value:"Successful exploitation will allow remote
  attackers to gain access to sensitive information and to execute arbitrary code
  in the context of the current user.

  Impact Level: System/Application");

  script_tag(name: "affected" , value:"Windows Media Center for
  - Microsoft Windows Vista x32/x64 Service Pack 2 and prior
  - Microsoft Windows 7 x32/x64 Edition Service Pack 1 and prior
  - Microsoft Windows 8 x32/x64 Edition
  - Microsoft Windows 8.1 x32/x64 Edition");

  script_tag(name: "solution" , value:"Run Windows Update and update the listed
  hotfixes or download and update mentioned hotfixes in the advisory from the
  link, https://technet.microsoft.com/library/security/MS15-134");

  script_tag(name:"solution_type", value:"VendorFix");

  script_xref(name : "URL" , value : "https://support.microsoft.com/en-us/kb/3108669");
  script_xref(name : "URL" , value : "https://technet.microsoft.com/library/security/MS15-134");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 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
sysPath = "";
ehshell_ver="";
media_center_ver="";

## Check for OS and Service Pack
if(hotfix_check_sp(win7:2, win7x64:2, win8:1, win8x64:1, win8_1:1, win8_1x64:1,
                   winVista:3) <= 0){
  exit(0);
}

## Get System Path
sysPath = smb_get_systemroot();
if(!sysPath){
  exit(0);
}

## Confirm Windows Media Center TV Pack installed 
media_center_ver = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\Current" +
                                       "Version\Media Center", item:"Ident");

## Confirm Media Center is installed
if(!media_center_ver){
  exit(0);
}

## Get File version
ehshell_ver = fetch_file_version(sysPath, file_name:"ehome\Ehshell.dll");
if(!ehshell_ver){
  exit(0);
}

## Windows 7
if(hotfix_check_sp(win7:2, win7x64:2) > 0)
{
  ## Check for Ehshell.dll version
  if(version_is_less(version:ehshell_ver, test_version:"6.1.7601.19061")){
      Vulnerable_range = "Less Than 6.1.7601.19061";
      VULN = TRUE ;
  }
  else if(version_in_range(version:ehshell_ver, test_version:"6.1.7601.22000", test_version2:"6.1.7601.23264"))
  {
     Vulnerable_range = "6.1.7601.22000 - 6.1.7601.23264";
     VULN = TRUE ;
  }
}

## Windows 8
else if(hotfix_check_sp(win8:1, win8x64:1) > 0)
{
  ## Check for Ehshell.dll version
  if(version_is_less(version:ehshell_ver, test_version:"6.2.9200.17569"))
  {
    Vulnerable_range = "Less Than 6.2.9200.17569";
    VULN = TRUE ;
  }
  else if(version_in_range(version:ehshell_ver, test_version:"6.2.9200.20000", test_version2:"6.2.9200.21687"))
  {
    Vulnerable_range = "6.2.9200.20000 - 6.2.9200.21687";
    VULN = TRUE ;
  }
}

## Windows 8.1
else if(hotfix_check_sp(win8_1:1, win8_1x64:1) > 0)
{
  ## Check for Ehshell.dll version
  if(version_is_less(version:ehshell_ver, test_version:"6.3.9600.18124"))
  {
    Vulnerable_range = "Less Than 6.3.9600.18124";
    VULN = TRUE ;
  }
}

## Windows Vista
## Currently not supporting for Vista 64 bit
else if(hotfix_check_sp(winVista:3) > 0)
{
  ## Check for Ehshell.dll version
  if(version_is_less(version:ehshell_ver, test_version:"6.0.6002.19537"))
  {
    Vulnerable_range = "Less Than 6.0.6002.19537";
    VULN = TRUE ;
  }
  else if (version_in_range(version:ehshell_ver, test_version:"6.0.6002.23000", test_version2:"6.0.6002.23846"))
  {
    Vulnerable_range = "6.0.6002.23000 - 6.0.6002.23846";
    VULN = TRUE ;
  }
}


if(VULN)
{
  report = 'File checked:     ' + sysPath + "\ehome\Ehshell.dll" + '\n' +
           'File version:     ' + ehshell_ver  + '\n' +
           'Vulnerable range: ' + Vulnerable_range + '\n' ;
  security_message(data:report);
  exit(0);
}