Microsoft Internet Information Services (IIS) End of Life (EOL) Detection

# SPDX-FileCopyrightText: 2017 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

CPE = "cpe:/a:microsoft:internet_information_services";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108114");
  script_version("2026-04-28T06:28:06+0000");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2017-03-31 08:00:00 +0200 (Fri, 31 Mar 2017)");
  script_name("Microsoft Internet Information Services (IIS) End of Life (EOL) Detection");
  script_copyright("Copyright (C) 2017 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("Web Servers");
  script_dependencies("gb_ms_iis_detect_win.nasl", "gb_microsoft_iis_http_detect.nasl");
  script_mandatory_keys("IIS/installed");

  script_xref(name:"URL", value:"https://support.microsoft.com/en-us/lifecycle/search?alpha=Microsoft%20Internet%20Information%20Services");

  script_tag(name:"summary", value:"The Microsoft Internet Information Services (IIS) version on the
  remote host has reached the end of life (EOL) and should not be used anymore.");

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

  script_tag(name:"impact", value:"An EOL version of Microsoft IIS is not receiving any security
  updates from the vendor. Unfixed security vulnerabilities might be leveraged by an attacker to
  compromise the security of this host.");

  script_tag(name:"solution", value:"The Microsoft IIS version is tightly coupled to the operation
  system on the remote host. Updating the operation system to a supported version is required.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_banner");

  exit(0);
}

include("date_func.inc");
include("eol_product.inc");
include("eol_shared.inc");
include("list_array_func.inc");
include("host_details.inc");

if( isnull( port = get_app_port( cpe:CPE ) ) )
  exit( 0 );

if( ! version = get_app_version( cpe:CPE, port:port ) )
  exit( 0 );

if( ret = product_reached_eol( cpe:CPE, version:version ) ) {
  report = eol_build_message( name:"Internet Information Services (IIS)",
                              cpe:CPE,
                              version:version,
                              eol_version:ret["eol_version"],
                              eol_date:ret["eol_date"],
                              eol_type:"prod" );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );