Microsoft Windows Multiple Vulnerabilities (KB4493446)

# Copyright (C) 2019 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("1.3.6.1.4.1.25623.1.0.815034");
  script_version("2023-10-27T16:11:32+0000");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2017-5753", "CVE-2017-5715", "CVE-2017-5754", "CVE-2019-0671",
                "CVE-2019-0673", "CVE-2019-0674", "CVE-2019-0688", "CVE-2019-0730",
                "CVE-2019-0731", "CVE-2019-0732", "CVE-2019-0735", "CVE-2019-0752",
                "CVE-2019-0753", "CVE-2019-0764", "CVE-2019-0790", "CVE-2019-0791",
                "CVE-2019-0792", "CVE-2019-0793", "CVE-2019-0794", "CVE-2019-0795",
                "CVE-2019-0796", "CVE-2019-0802", "CVE-2019-0803", "CVE-2019-0805",
                "CVE-2019-0835", "CVE-2019-0836", "CVE-2019-0838", "CVE-2019-0839",
                "CVE-2019-0842", "CVE-2019-0844", "CVE-2019-0845", "CVE-2019-0846",
                "CVE-2019-0847", "CVE-2019-0848", "CVE-2019-0849", "CVE-2019-0851",
                "CVE-2019-0853", "CVE-2019-0856", "CVE-2019-0859", "CVE-2019-0862",
                "CVE-2019-0877", "CVE-2019-0879");
  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:"2023-10-27 16:11:32 +0000 (Fri, 27 Oct 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/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:"2023-03-20 18:12:00 +0000 (Mon, 20 Mar 2023)");
  script_tag(name:"creation_date", value:"2019-04-10 09:14:49 +0530 (Wed, 10 Apr 2019)");
  script_name("Microsoft Windows Multiple Vulnerabilities (KB4493446)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB4493446");

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

  script_tag(name:"insight", value:"Multiple flaws exist:

  - When Windows Task Scheduler improperly discloses credentials to Windows
    Credential Manager.

  - When Windows TCP/IP stack improperly handles fragmented IP packets.

  - When Windows Client Server Run-Time Subsystem (CSRSS) fails to properly handle
    objects in memory.

  - When Microsoft XML Core Services MSXML parser processes user input.

  - Speculative execution side-channel vulnerabilities.

  Please see the references for more information about the vulnerabilities.");

  script_tag(name:"impact", value:"Successful exploitation will allow a remote
  attacker to elevate privileges, execute arbitrary code, read unauthorized
  information and cause denial of service condition.");

  script_tag(name:"affected", value:"- Microsoft Windows 8.1 for 32-bit/x64

  - Microsoft Windows Server 2012 R2");

  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/4493446");
  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_mandatory_keys("SMB/WindowsVersion");
  script_require_ports(139, 445);
  exit(0);
}

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

if(hotfix_check_sp(win8_1:1, win8_1x64:1, win2012R2:1) <= 0){
  exit(0);
}

sysPath = smb_get_system32root();
if(!sysPath)
  exit(0);

fileVer = fetch_file_version(sysPath:sysPath, file_name:"win32k.sys");
if(!fileVer)
  exit(0);

if(version_is_less(version:fileVer, test_version:"6.3.9600.19328")) {
  report = report_fixed_ver(file_checked:sysPath + "\Win32k.sys",
                            file_version:fileVer, vulnerable_range:"Less than 6.3.9600.19328");
  security_message(data:report);
  exit(0);
}

exit(99);