Microsoft Office (MSO) Remote Code Execution Vulnerability (978214)

# 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("1.3.6.1.4.1.25623.1.0.900228");
  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:"2010-02-10 16:06:43 +0100 (Wed, 10 Feb 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-2010-0243");
  script_name("Microsoft Office (MSO) Remote Code Execution Vulnerability (978214)");
  script_xref(name:"URL", value:"http://support.microsoft.com/kb/977896");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2010/0336");
  script_xref(name:"URL", value:"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-003");

  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", "smb_reg_service_pack.nasl");
  script_mandatory_keys("MS/Office/Ver");
  script_require_ports(139, 445);

  script_tag(name:"impact", value:"Successful exploitation could allow attackers to execute arbitrary code.");

  script_tag(name:"affected", value:"Microsoft Office XP 3 and prior.");

  script_tag(name:"insight", value:"An unspecified issue exists in Mso.dll while handling specially crafted
  office files causing remote code execution.");

  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 MS10-003.");

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

  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:"\Mso.dll", path:offPath);
    if(dllVer)
    {
      if(version_in_range(version:dllVer, test_version:"10.0", test_version2:"10.0.6857.9"))
      {
        security_message( port: 0, data: "The target host was found to be vulnerable" );
        exit(0);
      }
    }
  }
}