UniFi Protect <= 1.19.2 CORS Vulnerability

# Copyright (C) 2021 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:ui:unifi_protect";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.147221");
  script_version("2021-12-02T03:03:37+0000");
  script_tag(name:"last_modification", value:"2021-12-02 03:03:37 +0000 (Thu, 02 Dec 2021)");
  script_tag(name:"creation_date", value:"2021-11-25 02:48:02 +0000 (Thu, 25 Nov 2021)");
  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:"severity_vector", value:"CVSS:3.1/AV:N/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:"2021-11-30 14:55:00 +0000 (Tue, 30 Nov 2021)");

  script_cve_id("CVE-2021-22957");

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

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

  script_name("UniFi Protect <= 1.19.2 CORS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_ui_unifi_protect_ubnt_detect.nasl");
  script_mandatory_keys("ui/unifi_protect/detected");

  script_tag(name:"summary", value:"UniFi Protect is prone to a cross-origin resource sharing
  (CORS) vulnerability.");

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

  script_tag(name:"insight", value:"A Cross-Origin Resource Sharing (CORS) vulnerability found in
  UniFi Protect application allows a malicious actor who has convinced a privileged user to access
  a URL with malicious code to take over said user's account.");

  script_tag(name:"affected", value:"UniFi Protect version 1.19.2 and prior.");

  script_tag(name:"solution", value:"Update to version 1.20.0 or later.");

  script_xref(name:"URL", value:"https://community.ui.com/releases/Security-Advisory-Bulletin-021-021/62bd8841-6603-4fee-9dba-73037148f173");

  exit(0);
}

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

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

if (version_is_less_equal(version: version, test_version: "1.19.2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.20.0");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);