Snitz Forums 2000 SQL injection

# SPDX-FileCopyrightText: 2004 David Maciejak
# 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("1.3.6.1.4.1.25623.1.0.14227");
  script_version("2023-08-03T05:05:16+0000");
  script_tag(name:"last_modification", value:"2023-08-03 05:05:16 +0000 (Thu, 03 Aug 2023)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/7549");
  script_cve_id("CVE-2003-0286");
  script_xref(name:"OSVDB", value:"4638");
  script_name("Snitz Forums 2000 SQL injection");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_category(ACT_GATHER_INFO);
  script_tag(name:"qod_type", value:"remote_banner");
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2004 David Maciejak");
  script_dependencies("snitz_forums_2000_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("snitzforums/detected");

  script_tag(name:"summary", value:"The remote host is using Snitz Forum 2000 which allows an attacker
  to execute stored procedures and non-interactive operating system commands on the system.");

  script_tag(name:"insight", value:"The problem stems from the fact that the 'Email' variable
  in the register.asp module fails to properly validate and strip out malicious SQL data.");

  script_tag(name:"impact", value:"An attacker, exploiting this flaw, would need network access
  to the webserver. A successful attack would allow the remote attacker the ability to potentially
  execute arbitrary system commands through common SQL stored procedures such as xp_cmdshell.");

  script_tag(name:"solution_type", value:"WillNotFix");

  script_tag(name:"solution", value:"No known solution was made available for at least one year
  since the disclosure of this vulnerability. Likely none will be provided anymore.
  General solution options are to upgrade to a newer release, disable respective features,
  remove the product or replace the product by another one.");

  exit(0);
}

include("http_func.inc");
include("port_service_func.inc");

port = http_get_port(default:80);

if(!version = get_kb_item(string("www/", port, "/SnitzForums")))exit(0);
if(!matches = eregmatch(string:version, pattern:"^(.+) under (/.*)$"))exit(0);

vers = matches[1];

if(vers && "unknown" >!< vers) {

  # jwl: per CVE, all version prior to 3.3.03 are vulnerable
  if (egrep(string:vers, pattern:"^([0-2]\.*|3\.[0-2]\.*|3\.3\.0[0-2])")) {
    security_message(port);
    exit(0);
  }
}