SilverStripe CMS < 3.1.10 Information Disclosure Vulnerability - Active Check

# Copyright (C) 2017 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:silverstripe:silverstripe";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106795");
  script_version("2023-01-13T10:21:10+0000");
  script_tag(name:"last_modification", value:"2023-01-13 10:21:10 +0000 (Fri, 13 Jan 2023)");
  script_tag(name:"creation_date", value:"2017-04-27 14:38:21 +0200 (Thu, 27 Apr 2017)");
  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_tag(name:"qod_type", value:"remote_vul");

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

  script_name("SilverStripe CMS < 3.1.10 Information Disclosure Vulnerability - Active Check");

  script_category(ACT_GATHER_INFO); # nb: No ACT_ATTACK because "just" accessing a folder...

  script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_silverstripe_cms_http_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("silverstripe_cms/http/detected");

  script_tag(name:"summary", value:"SilverStripe CMS is prone to a path disclosure vulnerability.");

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

  script_tag(name:"insight", value:"Accessing /dev/build/ may return the installation path which may
  lead to further attacks.");

  script_tag(name:"affected", value:"SilverStripe CMS versions 3.1.9 and prior.");

  script_tag(name:"solution", value:"Update to version 3.1.10 or later.");

  script_xref(name:"URL", value:"https://www.silverstripe.org/download/security-releases/ss-2015-001/");
  script_xref(name:"URL", value:"https://seclists.org/fulldisclosure/2017/Apr/18");
  script_xref(name:"URL", value:"https://www.osisecurity.com.au/silverstripe-cms---path-disclosure.html");
  script_xref(name:"URL", value:"https://github.com/silverstripe/silverstripe-framework/pull/3854");

  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 (!dir = get_app_location(cpe: CPE, port: port))
  exit(0);

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

url = dir + "/dev/build/";

if (http_vuln_check(port: port, url: url, pattern: "output started on .*/dev/DebugView\.php")) {
  report = http_report_vuln_url(port: port, url: url);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);