Microsoft Internet Explorer Denial of Service Vulnerability

##############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_ms_iexplorer_dos_vuln_900131.nasl 5370 2017-02-20 15:24:26Z cfi $
# Description: Microsoft Internet Explorer Denial of Service Vulnerability
#
# Authors:
# Sharath S <[email protected]>
#
# Copyright:
# Copyright (C) 2008 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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.
##############################################################################

tag_impact = "Successful exploitation will cause the application to stop
        responding and denying the service to legitimate users.
 Impact Level : Application";

tag_solution = "No solution or patch was made available for at least one year
since 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.
For updates refer to http://windows.microsoft.com/en-us/internet-explorer/download-ie";

tag_affected = "Microsoft Internet Explorer 7.x and 8 Beta on Windows";

tag_insight = "Due to errors while handling PNG files, CDwnTaskExec::ThreadExec enters
        into an infinite loop while loading images which causes the browser to
        crash. This can be exploited by enticing victim to visit a malicious 
        web page embedded with rouge PNG files.";


tag_summary = "The host has Microsoft Internet Explorer installed, which is prone
 to denial of service vulnerability.";


if(description)
{
 script_id(900131);
 script_version("$Revision: 5370 $");
 script_tag(name:"last_modification", value:"$Date: 2017-02-20 16:24:26 +0100 (Mon, 20 Feb 2017) $");
 script_tag(name:"creation_date", value:"2008-09-26 07:36:49 +0200 (Fri, 26 Sep 2008)");
 script_cve_id("CVE-2008-4127");
 script_bugtraq_id(31215);
 script_copyright("Copyright (C) 2008 SecPod");
 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_category(ACT_GATHER_INFO);
 script_family("Denial of Service");
 script_name("Microsoft Internet Explorer Denial of Service Vulnerability");

 script_dependencies("secpod_reg_enum.nasl");
 script_mandatory_keys("SMB/WindowsVersion");
 script_require_ports(139, 445);
 script_xref(name : "URL" , value : "http://www.secniche.org/ie_mal_png_dos.html");
 script_xref(name : "URL" , value : "http://www.securityfocus.com/archive/1/496483");
 script_tag(name : "summary" , value : tag_summary);
 script_tag(name : "insight" , value : tag_insight);
 script_tag(name : "affected" , value : tag_affected);
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "impact" , value : tag_impact);
 script_tag(name:"qod_type", value:"registry");
 script_tag(name:"solution_type", value:"WillNotFix");
 exit(0);
}


 include("smb_nt.inc");

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

 iExpVer = registry_get_sz(key:"SOFTWARE\Microsoft\Internet Explorer" ,
                           item:"Version");
 if(!iExpVer){
	iExpVer = registry_get_sz(item:"IE",
        	  key:"SOFTWARE\Microsoft\Internet Explorer\Version Vector");
	if(!iExpVer){
        	exit(0);
	}
 }

 # Grep for IE 8 beta version <= 8.0.60001.18241
 if(ereg(pattern:"^(7\..*|8\.0\.(([0-5]?[0-9]?[0-9]?[0-9]|6000)\..*|6001" +
              "\.(0?[0-9]?[0-9]?[0-9]?[0-9]|1[0-7][0-9][0-9][0-9]|18[01]" +
              "[0-9][0-9]|182([0-3][0-9]|4[01]))))($|[^.0-9])", string:iExpVer)){
        security_message(0);
 }