Microsoft XML Core Services Remote Code Execution Vulnerability (936227)

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801715");
  script_version("2026-04-28T06:28:06+0000");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2011-01-14 09:03:25 +0100 (Fri, 14 Jan 2011)");
  script_cve_id("CVE-2007-2223");
  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_name("Microsoft XML Core Services Remote Code Execution Vulnerability (936227)");
  script_xref(name:"URL", value:"http://securitytracker.com/alerts/2007/Aug/1018559.html");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/25301");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-042");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");

  script_tag(name:"impact", value:"Successful exploitation will allow the attacker to execute arbitrary code in
  the context of the user running the application.");

  script_tag(name:"affected", value:"- Microsoft XML Core Services 3.0/4.0/5.0/6.0

  - Microsoft Windows 2K Service Pack 4 and prior

  - Microsoft Windows XP Service Pack 3 and prior

  - Microsoft Windows 2003 Service Pack 2 and prior

  - Microsoft Windows Vista

  - Microsoft Office 2003 Service Pack 2

  - Microsoft Office 2007

  - Microsoft Office Compatibility Pack for Word/Excel/PowerPoint 2007 File Formats");

  script_tag(name:"insight", value:"The flaw is due to an integer overflow error in the 'substringData()'
  method of an XMLDOM/TextNode JavaScript object.");

  script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");

  script_tag(name:"summary", value:"This host is missing a critical security update according to
  Microsoft Bulletin MS07-042.");

  exit(0);
}

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

function FileVer (file, path)
{
  share = ereg_replace(pattern:"([A-Za-z]):.*", replace:"\1$", string:path);
  if(share =~ "[a-z]\$")
    share = toupper(share);
  file = ereg_replace(pattern:"[A-Za-z]:(.*)", replace:"\1", string:path + file);
  ver = GetVer(file:file, share:share);
  return ver;
}

officeVer = get_kb_item("MS/Office/Ver");

## Office 2003
if(officeVer && officeVer =~ "^11\.")
{
  offPath = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion",
                            item:"CommonFilesDir");
  if(offPath)
  {
    offPath += "\Microsoft Shared\OFFICE11";
    dllVer = FileVer(file:"\msxml5.dll", path:offPath);
    if(dllVer)
    {
      if(version_is_less(version:dllVer, test_version:"5.20.1081.0"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }
    }
  }
}

## Office 2007
if(officeVer && officeVer =~ "^12\.")
{
  offPath = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion", item:"CommonFilesDir");
  if(offPath)
  {
    offPath += "\Microsoft Shared\OFFICE12";
    dllVer = FileVer(file:"\msxml5.dll", path:offPath);
    if(dllVer)
    {
      if(version_is_less(version:dllVer, test_version:"5.20.1081.0"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }
    }
  }
}

if(hotfix_check_sp(xp:4, win2k:5, win2003:3, winVista:3, win2008:3) <= 0){
  exit(0);
}

sysPath = registry_get_sz(key:"SOFTWARE\Microsoft\COM3\Setup", item:"Install Path");
if(sysPath)
{
  dllVer = fetch_file_version(sysPath:sysPath, file_name:"Msxml3.dll");
  dllVer2 = fetch_file_version(sysPath:sysPath, file_name:"Msxml4.dll");
  dllVer3 = fetch_file_version(sysPath:sysPath, file_name:"Msxml6.dll");
  if(dllVer || dllVer2 || dllVer3)
  {

    ## Avoid passing FALSE values to the version_* functions later if fetch_file_version() returns FALSE
    if( ! dllVer ) dllVer = "unknown";
    if( ! dllVer2 ) dllVer2 = "unknown";
    if( ! dllVer3 ) dllVer3 = "unknown";

    if(hotfix_check_sp(win2k:5, xp:4, win2003:3) > 0)
    {
      if(version_in_range(version:dllVer, test_version:"8.0", test_version2:"8.90.1100.0")||
         version_in_range(version:dllVer2, test_version:"4.0", test_version2:"4.20.9847.0") ||
         version_in_range(version:dllVer3, test_version:"6.0", test_version2:"6.10.1199.0")){
        security_message( port: 0, data: "The target host was found to be vulnerable" );
      }
    }
  }
}

sysPath = registry_get_sz(key:"SOFTWARE\Microsoft\Windows NT\CurrentVersion", item:"PathName");
if(!sysPath){
  exit(0);
}

dllVer = fetch_file_version(sysPath:sysPath, file_name:"system32\Msxml3.dll");
dllVer2 = fetch_file_version(sysPath:sysPath, file_name:"system32\Msxml4.dll");
dllVer3 = fetch_file_version(sysPath:sysPath, file_name:"system32\Msxml6.dll");
if(dllVer || dllVer2 || dllVer3)
{

  ## Avoid passing FALSE values to the version_* functions later if fetch_file_version() returns FALSE
  if( ! dllVer ) dllVer = "unknown";
  if( ! dllVer2 ) dllVer2 = "unknown";
  if( ! dllVer3 ) dllVer3 = "unknown";

  if(hotfix_check_sp(winVista:3) > 0)
  {
    if(version_in_range(version:dllVer, test_version:"8.0", test_version2:"8.90.1100.0") ||
       version_in_range(version:dllVer2, test_version:"4.0", test_version2:"4.20.9847.0") ||
       version_in_range(version:dllVer3, test_version:"6.0", test_version2:"6.10.1199.0")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }

  if(hotfix_check_sp(win2008:3) > 0)
  {
    if(version_in_range(version:dllVer2, test_version:"4.0", test_version2:"4.20.9847.0")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
}