Microsoft Internet Explorer (IE) 4.x - 6.x End of Life (EOL) Detection

# SPDX-FileCopyrightText: 2008 Montgomery County Maryland
# 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

# For reference, below are the released Internet Explorer versions.
# This information is from:
# http://support.microsoft.com/kb/164539/
#  Version              Product
#
#  4.40.308             Internet Explorer 1.0 (Plus!)
#  4.40.520             Internet Explorer 2.0
#  4.70.1155            Internet Explorer 3.0
#  4.70.1158            Internet Explorer 3.0 (OSR2)
#  4.70.1215            Internet Explorer 3.01
#  4.70.1300            Internet Explorer 3.02 and 3.02a
#  4.71.544             Internet Explorer 4.0 Platform Preview 1.0 (PP1)
#  4.71.1008.3          Internet Explorer 4.0 Platform Preview 2.0 (PP2)
#  4.71.1712.6          Internet Explorer 4.0
#  4.72.2106.8          Internet Explorer 4.01
#  4.72.3110.8          Internet Explorer 4.01 Service Pack 1 (SP1)
#  4.72.3612.1713       Internet Explorer 4.01 Service Pack 2 (SP2)
#  5.00.0518.10         Internet Explorer 5 Developer Preview (Beta 1)
#  5.00.0910.1309       Internet Explorer 5 Beta (Beta 2)
#  5.00.2014.0216       Internet Explorer 5
#  5.00.2314.1003       Internet Explorer 5 (Office 2000)
#  5.00.2614.3500       Internet Explorer 5 (Windows 98 Second Edition)
#  5.00.2516.1900       Internet Explorer 5.01 (Windows 2000 Beta 3, build 5.00.2031)
#  5.00.2919.800        Internet Explorer 5.01 (Windows 2000 RC1, build 5.00.2072)
#  5.00.2919.3800       Internet Explorer 5.01 (Windows 2000 RC2, build 5.00.2128)
#  5.00.2919.6307       Internet Explorer 5.01 (Also included with Office 2000 SR-1, but not installed by default)
#  5.00.2920.0000       Internet Explorer 5.01 (Windows 2000, build 5.00.2195)
#  5.00.3103.1000       Internet Explorer 5.01 SP1 (Windows 2000)
#  5.00.3105.0106       Internet Explorer 5.01 SP1 (Windows 95/98 and Windows NT 4.0)
#  5.00.3314.2101       Internet Explorer 5.01 SP2 (Windows 95/98 and Windows NT 4.0)
#  5.00.3315.1000       Internet Explorer 5.01 SP2 (Windows 2000)
#  5.50.3825.1300       Internet Explorer 5.5 Developer Preview (Beta)
#  5.50.4030.2400       Internet Explorer 5.5 & Internet Tools Beta
#  5.50.4134.0100       Windows Me (4.90.3000)
#  5.50.4134.0600       Internet Explorer 5.5
#  5.50.4308.2900       Internet Explorer 5.5 Advanced Security Privacy Beta
#  5.50.4522.1800       Internet Explorer 5.5 Service Pack 1
#  5.50.4807.2300       Internet Explorer 5.5 Service Pack 2
#  6.00.2462.0000       Internet Explorer 6 Public Preview (Beta)
#  6.00.2479.0006       Internet Explorer 6 Public Preview (Beta) Refresh
#  6.00.2600.0000       Internet Explorer 6
#  6.00.2800.1106       Internet Explorer 6 Service Pack 1 (Windows XP SP1)
#  6.00.2900.2180       Internet Explorer 6 Service Pack 2 (Windows XP SP2)
#  6.00.3663.0000       Internet Explorer 6 for Microsoft Windows Server 2003 RC1
#  6.00.3718.0000       Internet Explorer 6 for Windows Server 2003 RC2
#  6.00.3790.0000       Internet Explorer 6 for Windows Server 2003 (released)

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.80041");
  script_version("2026-04-28T06:28:06+0000");
  script_tag(name:"last_modification", value:"2026-04-28 06:28:06 +0000 (Tue, 28 Apr 2026)");
  script_tag(name:"creation_date", value:"2008-10-24 20:38:19 +0200 (Fri, 24 Oct 2008)");
  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_name("Microsoft Internet Explorer (IE) 4.x - 6.x End of Life (EOL) Detection");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2008 Montgomery County Maryland");
  script_family("Windows");
  script_dependencies("gb_ms_ie_detect.nasl");
  script_mandatory_keys("MS/IE/Version");

  script_xref(name:"URL", value:"https://learn.microsoft.com/en-us/lifecycle/products/?terms=internet%20explorer");

  script_tag(name:"summary", value:"The remote host is running a version of Internet Explorer which
  is not supported by Microsoft any more.");

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

  script_tag(name:"insight", value:"Non-supported versions of Internet Explorer may contain critical
  security vulnerabilities as no new security patches will be released for those.");

  script_tag(name:"solution", value:"Update the Microsoft IE version on the remote host to a still
  supported version This might require to replace the host operation system.");

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

  exit(0);
}

# Note: only IE 4.0 and later will be detected by this kb item
if (!version = get_kb_item("MS/IE/Version"))
  exit(0);

warning = FALSE;

if ((ereg(pattern:"^[4-5]\.", string:version)) ||
    (ereg(pattern:"^6\.0+\.(2462|2479|2600)", string:version))) {
  warning = TRUE;
}

if (warning) {
  report = "The remote host has Internet Explorer version " + version + " installed.";
  security_message(port:0, data:report);
  exit(0);
}

exit(99);