Open-Xchange (OX) App Suite XEE Denial of Service Vulnerability

# Copyright (C) 2015 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:open-xchange:open-xchange_appsuite";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.806075");
  script_version("2022-12-12T10:22:32+0000");
  script_cve_id("CVE-2014-5238");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2022-12-12 10:22:32 +0000 (Mon, 12 Dec 2022)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-01-28 19:22:00 +0000 (Tue, 28 Jan 2020)");
  script_tag(name:"creation_date", value:"2015-10-06 18:57:33 +0530 (Tue, 06 Oct 2015)");
  script_tag(name:"qod_type", value:"remote_banner");
  script_name("Open-Xchange (OX) App Suite XEE Denial of Service Vulnerability");

  script_tag(name:"summary", value:"Open-Xchange (OX) App Suite is prone to a denial of service (DoS) vulnerability.");

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

  script_tag(name:"insight", value:"The flaw is due to an incorrectly
  configured XML parser accepting XML external entities from an untrusted
  source.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to launch XEEE attacks and can that be used to run denial-of-service
  attacks to the deployment.");

  script_tag(name:"affected", value:"Open-Xchange (OX) App Suite versions before
  7.4.2-rev11 and 7.6.x before 7.6.0-rev9");

  script_tag(name:"solution", value:"Update to version 7.4.2-rev11 or 7.6.0-rev9 or later.");

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

  script_xref(name:"URL", value:"https://packetstormsecurity.com/files/128257");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/69816");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_open-xchange_ox_app_suite_http_detect.nasl");
  script_mandatory_keys("open-xchange/app_suite/detected");

  exit(0);
}

include("version_func.inc");
include("host_details.inc");

if (!port = get_app_port(cpe: CPE))
  exit(0);

if (!revision = get_kb_item("open-xchange/app_suite/" + port + "/revision"))
  exit(0);

if (!infos = get_app_version_and_location(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];
version += "." + revision;

if (version_is_less(version: version, test_version: "7.4.2.11"))
  fix = "7.4.2-rev11";

else if (version =~ "^7\.6" && version_is_less(version: version, test_version: "7.6.0.9"))
  fix = "7.6.0-rev9";

if (fix) {
  report = report_fixed_ver(installed_version: version, fixed_version: fix, install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);