Expert PDF EditorX ActiveX File Overwrite Vulnerability

# Copyright (C) 2009 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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("1.3.6.1.4.1.25623.1.0.900481");
  script_version("2022-05-09T13:48:18+0000");
  script_tag(name:"last_modification", value:"2022-05-09 13:48:18 +0000 (Mon, 09 May 2022)");
  script_tag(name:"creation_date", value:"2009-03-26 11:19:12 +0100 (Thu, 26 Mar 2009)");
  script_tag(name:"cvss_base", value:"8.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:C/A:C");
  script_cve_id("CVE-2008-6496");
  script_name("Expert PDF EditorX ActiveX File Overwrite Vulnerability");
  script_xref(name:"URL", value:"http://secunia.com/advisories/32990");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/32664");
  script_xref(name:"URL", value:"http://www.milw0rm.com/exploits/7358");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/47166");

  script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"registry");
  script_copyright("Copyright (C) 2009 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("smb_reg_service_pack.nasl");
  script_mandatory_keys("SMB/WindowsVersion");
  script_require_ports(139, 445);
  script_tag(name:"impact", value:"Successful exploitation will let the attacker corrupt or overwrite
  arbitrary files on the user's system.");
  script_tag(name:"insight", value:"This flaw is due to an ActiveX control in Expert PDF EditorX file
  'VSPDFEditorX.ocx' providing insecure 'extractPagesToFile' method.");
  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");
  script_tag(name:"summary", value:"Expert PDF EditorX is prone to ActiveX file overwrite vulnerability.");
  script_tag(name:"affected", value:"Expert PDF EditorX 'VSPDFEditorX.ocx' version 1.0.1910.0 and prior.");
  script_tag(name:"solution_type", value:"WillNotFix");
  exit(0);
}

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

if(!get_kb_item("SMB/WindowsVersion")){
  exit(0);
}

key = "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\";

if(!registry_key_exists(key:key)){
    exit(0);
}

foreach item (registry_enum_keys(key:key))
{
  editorx = registry_get_sz(key:key + item, item:"DisplayName");
  if("eXPert PDF EditorX" >< editorx)
  {
    ocxVer = registry_get_sz(key:key + item, item:"DisplayVersion");
    break;
  }
}

if(ocxVer != NULL)
{
  if(version_is_less_equal(version:ocxVer, test_version:"1.0.1910.0"))
  {
    if(is_killbit_set(clsid:"{89F968A1-DBAC-4807-9B3C-405A55E4A279}") == 0){
      security_message( port: 0, data: "The target host was found to be vulnerable" );
    }
  }
}