Microsoft Office 2016 Remote Code Execution Vulnerability (KB3203474)

# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.811667");
  script_version("2026-04-28T06:28:06+0000");
  script_cve_id("CVE-2017-8630");
  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:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-09-21 16:10:00 +0000 (Thu, 21 Sep 2017)");
  script_tag(name:"creation_date", value:"2017-09-13 09:18:23 +0530 (Wed, 13 Sep 2017)");
  script_name("Microsoft Office 2016 Remote Code Execution Vulnerability (KB3203474)");

  script_tag(name:"summary", value:"This host is missing an important security
  update according to Microsoft KB3203474");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The flaw exists due to an error in
  Microsoft Office software when it fails to properly handle objects in
  memory.");

  script_tag(name:"impact", value:"Successful exploitation will allow an
  attacker who successfully exploited the vulnerability could use a specially
  crafted file to perform actions in the security context of the current user.");

  script_tag(name:"affected", value:"Microsoft Office 2016.");

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

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version");
  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/3203474");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/100732");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 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);

  exit(0);
}

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

officeVer = get_kb_item("MS/Office/Ver");
if(!officeVer){
  exit(0);
}

# Office 2016
if(officeVer =~ "^16\.")
{
  comPath = registry_get_sz(key:"SOFTWARE\Microsoft\Office\16.0\Access\InstallRoot",
                           item:"Path");
  if(comPath)
  {
    ortVer = fetch_file_version(sysPath:comPath, file_name:"Oart.dll");
    if(ortVer)
    {
      if(version_in_range(version:ortVer, test_version:"16", test_version2:"16.0.4588.0999"))
      {
        report = 'File checked:     ' + comPath + "\Oart.dll" + '\n' +
        'File version:     ' + ortVer  + '\n' +
        'Vulnerable range:  16.0 - 16.0.4588.0999 \n' ;
        security_message(data:report);
        exit(0);
      }
    }
  }
}
exit(0);