Microsoft Windows Scripting Engine Memory Corruption Vulnerability (KB4522009)

# Copyright (C) 2019 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) the respective author(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("1.3.6.1.4.1.25623.1.0.815627");
  script_version("2019-09-25T12:48:23+0000");
  script_cve_id("CVE-2019-1367");
  script_tag(name:"cvss_base", value:"7.6");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2019-09-25 12:48:23 +0000 (Wed, 25 Sep 2019)");
  script_tag(name:"creation_date", value:"2019-09-24 11:20:47 +0530 (Tue, 24 Sep 2019)");
  script_name("Microsoft Windows Scripting Engine Memory Corruption Vulnerability (KB4522009)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB4522009");

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

  script_tag(name:"insight", value:"The flaw exist due to an error in the way
  that the scripting engine handles objects in memory in Internet Explorer.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to execute arbitrary code in the context of the current user.");

  script_tag(name:"affected", value:"Internet Explorer 11 on Windows 10 x32/x64");

  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/4522009");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Windows : Microsoft Bulletins");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  exit(0);
}

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


if(hotfix_check_sp(win10:1, win10x64:1) <= 0){
  exit(0);
}

dllPath = smb_get_system32root();
if(!dllPath ){
  exit(0);
}

fileVer = fetch_file_version(sysPath:dllPath, file_name:"Edgehtml.dll");
if(!fileVer){
  exit(0);
}

if(version_in_range(version:fileVer, test_version:"11.0.10240.0", test_version2:"11.0.10240.18333"))
{
  report = report_fixed_ver(file_checked:dllPath + "\Edgehtml.dll",
                            file_version:fileVer, vulnerable_range:"11.0.10240.0 - 11.0.10240.18333");
  security_message(data:report);
  exit(0);
}
exit(99);