Microsoft Unicode Scripts Processor and MS Office Could Code Execution Vulnerability (2320113)

# SPDX-FileCopyrightText: 2010 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("1.3.6.1.4.1.25623.1.0.902224");
  script_version("2024-06-21T05:05:42+0000");
  script_tag(name:"last_modification", value:"2024-06-21 05:05:42 +0000 (Fri, 21 Jun 2024)");
  script_tag(name:"creation_date", value:"2010-09-15 17:01:07 +0200 (Wed, 15 Sep 2010)");
  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_cve_id("CVE-2010-2738");
  script_name("Microsoft Unicode Scripts Processor and MS Office Could Code Execution Vulnerability (2320113)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/981322");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/2288608");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2010/2384");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("secpod_office_products_version_900032.nasl");
  script_mandatory_keys("MS/Office/Ver");
  script_require_ports(139, 445);

  script_tag(name:"impact", value:"Successful exploitation could allow remote attackers to execute arbitrary code
  with SYSTEM privileges and to take complete control of an affected system.");

  script_tag(name:"affected", value:"- Microsoft Office XP SP 3 and prior

  - Microsoft Office 2003 SP 3 and prior

  - Microsoft Office 2007 SP 2 and prior

  - Microsoft Windows XP SP 3 and prior

  - Microsoft Windows Vista SP 2 and prior

  - Microsoft Windows Server 2008 SP 2 and prior

  - Microsoft Windows Server 2003 SP 2 and prior");

  script_tag(name:"insight", value:"The flaw is caused by an invalid index within the Unicode Script Processor
  (USP10.DLL) when handling a table in the OpenType font layout, which could be
  exploited by attackers to execute arbitrary code by tricking a user into
  visiting a specially crafted web page or opening a malicious Office document.");

  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 MS10-063.");

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

  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-063");
  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 XP
if(officeVer && officeVer =~ "^10\.")
{
  offPath = registry_get_sz(key:"SOFTWARE\Microsoft\Windows\CurrentVersion", item:"CommonFilesDir");
  if(offPath)
  {
    offPath += "\Microsoft Shared\OFFICE10";
    dllVer = FileVer(file:"\Usp10.dll", path:offPath);
    if(dllVer)
    {
      if(version_is_less(version:dllVer, test_version:"1.420.2600.5969"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }
    }
  }
}

## 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:"\Usp10.dll", path:offPath);
    if(dllVer)
    {
      if(version_is_less(version:dllVer, test_version:"1.626.6000.21258"))
      {
        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:"\Usp10.dll", path:offPath);
    if(dllVer)
    {
      if(version_is_less(version:dllVer, test_version:"1.626.6002.22402"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }
    }
  }
}

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

if(hotfix_missing(name:"981322") == 0){
  exit(0);
}


dllPath = registry_get_sz(key:"SOFTWARE\Microsoft\COM3\Setup", item:"Install Path");
if(dllPath)
{
  share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:dllPath);
  file = ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1",
                      string:dllPath + "\Usp10.dll");

  dllVer = GetVer(file:file, share:share);
  if(dllVer)
  {
    if(hotfix_check_sp(xp:4) > 0)
    {
      SP = get_kb_item("SMB/WinXP/ServicePack");
      if("Service Pack 3" >< SP)
      {
        if(version_is_less(version:dllVer, test_version:"1.420.2600.5969")){
          security_message( port: 0, data: "The target host was found to be vulnerable" );
        }
        exit(0);
      }
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }

    else if(hotfix_check_sp(win2003:3) > 0)
    {
      SP = get_kb_item("SMB/Win2003/ServicePack");
      if("Service Pack 2" >< SP)
      {
        if(version_is_less(version:dllVer, test_version:"1.422.3790.4695")){
          security_message( port: 0, data: "The target host was found to be vulnerable" );
        }
        exit(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);
}

share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:sysPath);
file =  ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1",
                     string:sysPath + "\system32\Usp10.dll");

sysVer = GetVer(file:file, share:share);
if(!sysVer){
  exit(0);
}

if(hotfix_check_sp(winVista:2) > 0)
{
  SP = get_kb_item("SMB/WinVista/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"1.626.6001.18461")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }

  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"1.626.6002.18244")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}

else if(hotfix_check_sp(win2008:2) > 0)
{
  SP = get_kb_item("SMB/Win2008/ServicePack");
  if("Service Pack 1" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"1.626.6001.18461")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }

  if("Service Pack 2" >< SP)
  {
    if(version_is_less(version:sysVer, test_version:"1.626.6002.18244")){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
    exit(0);
  }
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}