Apache Guacamole < 1.2.0 Multiple Vulnerabilities

# Copyright (C) 2020 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:apache:guacamole";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.144236");
  script_version("2021-07-22T02:00:50+0000");
  script_tag(name:"last_modification", value:"2021-07-22 02:00:50 +0000 (Thu, 22 Jul 2021)");
  script_tag(name:"creation_date", value:"2020-07-15 04:25:21 +0000 (Wed, 15 Jul 2020)");
  script_tag(name:"cvss_base", value:"6.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-03-29 19:38:00 +0000 (Mon, 29 Mar 2021)");

  script_cve_id("CVE-2020-9497", "CVE-2020-9498");

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

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

  script_name("Apache Guacamole < 1.2.0 Multiple Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_apache_guacamole_http_detect.nasl");
  script_mandatory_keys("apache/guacamole/detected");

  script_tag(name:"summary", value:"Apache Guacamole is prone to multiple vulnerabilities.");

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

  script_tag(name:"insight", value:"The following vulnerabilities exist:

  - Improper input validation of RDP static virtual channels (CVE-2020-9497)

  - Dangling pointer in RDP static virtual channel handling (CVE-2020-9498)");

  script_tag(name:"affected", value:"Apache Guacamole version 1.1.0 and prior.");

  script_tag(name:"solution", value:"Update to version 1.2.0 or later.");

  script_xref(name:"URL", value:"https://lists.apache.org/thread.html/r3f071de70ea1facd3601e0fa894e6cadc960627ee7199437b5a56f7f@%3Cannounce.apache.org%3E");
  script_xref(name:"URL", value:"https://lists.apache.org/thread.html/r26fb170edebff842c74aacdb1333c1338f0e19e5ec7854d72e4680fc@%3Cannounce.apache.org%3E");
  script_xref(name:"URL", value:"https://research.checkpoint.com/2020/apache-guacamole-rce/");

  exit(0);
}

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

if (!port = get_app_port(cpe: CPE))
  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"];

if (version_is_less(version: version, test_version: "1.2.0")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.2.0", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);