Microsoft Internet Explorer NULL Pointer DoS Vulnerability

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.800337");
  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:"2009-01-09 13:48:55 +0100 (Fri, 09 Jan 2009)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_cve_id("CVE-2009-0072");
  script_name("Microsoft Internet Explorer NULL Pointer DoS Vulnerability");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/47788");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/33149");
  script_xref(name:"URL", value:"http://skypher.com/index.php/2009/01/07/msie-screen-null-ptr-dos-details/");

  script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"registry");
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_ms_ie_detect.nasl");
  script_mandatory_keys("MS/IE/Version");

  script_tag(name:"impact", value:"Successful exploitation could allow remote attackers to cause the application
  to crash.");

  script_tag(name:"affected", value:"Microsoft, Internet Explorer version 6.0, 7.0, 8.0 Beta2 and prior.");

  script_tag(name:"insight", value:"The flaw is due to improper handling of onload=screen[''] attribute
  value in BODY element. By persuading a victim to visit a specially-crafted
  Web page, denial of service can be caused.");

  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:"Internet Explorer is prone to a remote denial of service (DoS) vulnerability.");

  script_tag(name:"solution_type", value:"WillNotFix");

  exit(0);
}

include("version_func.inc");

ieVer = get_kb_item("MS/IE/Version");
if(!ieVer){
  exit(0);
}

if(version_in_range(version:ieVer, test_version:"6.0", test_version2:"8.0.6001.18241")) {
  security_message( port: 0, data: "The target host was found to be vulnerable" );
}