Microsoft Windows Multiple Vulnerabilities (KB4586787)

# 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("1.3.6.1.4.1.25623.1.0.817533");
  script_version("2025-11-14T15:41:06+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-2020-1599", "CVE-2020-16997", "CVE-2020-16998", "CVE-2020-16999",
                "CVE-2020-17000", "CVE-2020-17001", "CVE-2020-17004", "CVE-2020-17007",
                "CVE-2020-17011", "CVE-2020-17014", "CVE-2020-17024", "CVE-2020-17025",
                "CVE-2020-17026", "CVE-2020-17027", "CVE-2020-17028", "CVE-2020-17029",
                "CVE-2020-17031", "CVE-2020-17032", "CVE-2020-17033", "CVE-2020-17034",
                "CVE-2020-17036", "CVE-2020-17037", "CVE-2020-17038", "CVE-2020-17040",
                "CVE-2020-17041", "CVE-2020-17042", "CVE-2020-17043", "CVE-2020-17044",
                "CVE-2020-17045", "CVE-2020-17046", "CVE-2020-17047", "CVE-2020-17052",
                "CVE-2020-17054", "CVE-2020-17055", "CVE-2020-17056", "CVE-2020-17058",
                "CVE-2020-17068", "CVE-2020-17069", "CVE-2020-17071", "CVE-2020-17075",
                "CVE-2020-17087", "CVE-2020-17088", "CVE-2020-17113");
  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: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:"2020-11-19 17:29:00 +0000 (Thu, 19 Nov 2020)");
  script_tag(name:"creation_date", value:"2020-11-11 11:07:55 +0530 (Wed, 11 Nov 2020)");
  script_name("Microsoft Windows Multiple Vulnerabilities (KB4586787)");

  script_tag(name:"summary", value:"This host is missing a critical security
  update according to Microsoft KB4586787");

  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:

  - Incorrect processing of user-supplied data in Windows.

  - Error in excessive data output in the Remote Desktop Protocol server.

  - Error in use after free memory in DirectX driver.

  - Error when the Windows WalletService fails to properly impose security restrictions.

  - Error in excessive data output by the application in Windows Graphics Component.

  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 10 for 32-bit Systems

  - Microsoft Windows 10 for x64-based Systems");

  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/4586787");
  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");

fileVer = "";
dllPath = "";
report = "";

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:"Ntoskrnl.exe");
if(!fileVer){
  exit(0);
}

if(version_in_range(version:fileVer, test_version:"10.0.10240.0", test_version2:"10.0.10240.18755"))
{
  report = report_fixed_ver(file_checked:dllPath + "\Ntoskrnl.exe",
                            file_version:fileVer, vulnerable_range:"10.0.10240.0 - 10.0.10240.18755");
  security_message(data:report);
  exit(0);
}
exit(99);