Microsoft Windows Multiple Vulnerabilities (KB4580345)

# SPDX-FileCopyrightText: 2020 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("1.3.6.1.4.1.25623.1.0.817511");
  script_version("2025-11-14T15:41:06+0000");
  script_cve_id("CVE-2020-16863", "CVE-2020-16887", "CVE-2020-16889", "CVE-2020-16891",
                "CVE-2020-16897", "CVE-2020-16900", "CVE-2020-16902", "CVE-2020-16912",
                "CVE-2020-16914", "CVE-2020-16916", "CVE-2020-16920", "CVE-2020-16922",
                "CVE-2020-16923", "CVE-2020-16924", "CVE-2020-16935", "CVE-2020-16936",
                "CVE-2020-16939", "CVE-2020-16940", "CVE-2020-16972", "CVE-2020-16973",
                "CVE-2020-16974", "CVE-2020-16975", "CVE-2020-16976");
  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:"2025-11-14 15:41:06 +0000 (Fri, 14 Nov 2025)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-10-23 12:55:00 +0000 (Fri, 23 Oct 2020)");
  script_tag(name:"creation_date", value:"2020-10-14 12:37:49 +0530 (Wed, 14 Oct 2020)");
  script_name("Microsoft Windows Multiple Vulnerabilities (KB4580345)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB4580345");

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

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

  - An error when the Windows Network Connections Service handles objects
    in memory.

  - An error when the Windows KernelStream fails to properly handles objects
    in memory.

  - An error when Windows Hyper-V on a host server fails to properly validate
    input from an authenticated user on a guest operating system.

  - An error when NetBIOS over TCP (NBT) Extensions (NetBT) improperly handle
    objects in memory.

  - An error when the Windows Event System improperly handles objects in memory.

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

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to execute arbitrary code, elevate privileges and disclose sensitive information.");

  script_tag(name:"affected", value:"- Microsoft Windows Server 2008 R2 for x64-based Systems Service Pack 1

  - Microsoft Windows 7 for x64-based Systems Service Pack 1

  - Microsoft Windows 7 for 32-bit Systems Service Pack 1");

  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/4580345");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  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(win2008r2:2, win7x64:2, win7:2) <= 0){
  exit(0);
}

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

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

if(version_is_less(version:fileVer, test_version:"6.1.7601.24561"))
{
  report = report_fixed_ver(file_checked:dllPath + "\Conhost.exe",
                            file_version:fileVer, vulnerable_range:"Less than 6.1.7601.24561");
  security_message(data:report);
  exit(0);
}
exit(99);