Xerver HTTP Server <= 4.32 Directory Traversal Vulnerability

# Copyright (C) 2009 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:xerver:xerver";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801018");
  script_version("2022-12-05T10:11:03+0000");
  script_tag(name:"last_modification", value:"2022-12-05 10:11:03 +0000 (Mon, 05 Dec 2022)");
  script_tag(name:"creation_date", value:"2009-10-21 10:12:07 +0200 (Wed, 21 Oct 2009)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_cve_id("CVE-2009-3561");

  script_tag(name:"qod_type", value:"remote_vul");

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

  script_name("Xerver HTTP Server <= 4.32 Directory Traversal Vulnerability");

  script_category(ACT_ATTACK);

  script_copyright("Copyright (C) 2009 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_xerver_http_server_detect.nasl");
  script_require_ports("Services/www", 32123);
  script_mandatory_keys("xerver/http/detected");

  script_tag(name:"summary", value:"Xerver HTTP Server is prone to a directory traversal
  vulnerability");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"insight", value:"The flaw is due to improper sanitization of user supplied input
  passed via 'currentPath' parameter (when 'action' is set to 'chooseDirectory') to the
  administrative interface.");

  script_tag(name:"affected", value:"Xerver version 4.32 and prior on all platforms.");

  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_xref(name:"URL", value:"http://www.milw0rm.com/exploits/9718");

  exit(0);
}

include("host_details.inc");
include("http_func.inc");
include("http_keepalive.inc");

if (!port = get_app_port(cpe: CPE, service: "www"))
  exit(0);

if (!get_app_location(cpe: CPE, port: port, nofork:TRUE))
  exit(0);

url = "/action=chooseDirectory&currentPath=C:/";
if (http_vuln_check(port: port, url: url, pattern:"Program Files", check_header: TRUE,
                    extra_check: "WINDOWS")) {
  report = http_report_vuln_url(port: port, url: url);
  security_message(port: port, data: report);
  exit(0);
} else {
  url = "/action=chooseDirectory&currentPath=/";
  if (http_vuln_check(port: port, url: url, pattern:"root", check_header: TRUE,
                      extra_check: "etc")) {
    report = http_report_vuln_url(port: port, url: url);
    security_message(port: port, data: report);
    exit(0);
  }
}

exit(99);