QNAP QTS XSS Vulnerability (QSA-21-22)

# SPDX-FileCopyrightText: 2021 Greenbone AG
# 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-only

CPE = "cpe:/o:qnap:qts";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.146086");
  script_version("2023-09-27T05:05:31+0000");
  script_tag(name:"last_modification", value:"2023-09-27 05:05:31 +0000 (Wed, 27 Sep 2023)");
  script_tag(name:"creation_date", value:"2021-06-07 05:02:29 +0000 (Mon, 07 Jun 2021)");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-06-09 19:56:00 +0000 (Wed, 09 Jun 2021)");

  script_cve_id("CVE-2021-28806");

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

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

  script_name("QNAP QTS XSS Vulnerability (QSA-21-22)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_qnap_nas_http_detect.nasl");
  script_mandatory_keys("qnap/nas/qts/detected");

  script_tag(name:"summary", value:"QNAP QTS is prone to a DOM-based cross-site scripting (XSS)
  vulnerability.");

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

  script_tag(name:"impact", value:"If exploited, this vulnerability allows attackers to inject
  malicious code.");

  script_tag(name:"affected", value:"QNAP NAS QTS version 4.4.x and 4.5.x prior to
  4.5.3.1652 Build 20210428.");

  script_tag(name:"solution", value:"Update to version 4.5.3.1652 Build 20210428 or later.");

  script_xref(name:"URL", value:"https://www.qnap.com/en/security-advisory/qsa-21-22");

  exit(0);
}

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

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

build = get_kb_item("qnap/nas/qts/build");

if (version =~ "^4\.[45]") {
  if (version_is_less(version: version, test_version: "4.5.3.1652")) {
    report = report_fixed_ver(installed_version: version, installed_build: build, fixed_version: "4.5.3.1652", fixed_build: "20210428");
    security_message(port: 0, data: report);
    exit(0);
  }

  if (version_is_equal(version: version, test_version: "4.5.3.1652") &&
            (!build || version_is_less(version: build, test_version: "20210428"))) {
    report = report_fixed_ver(installed_version: version, installed_build: build, fixed_version: "4.5.3.1652", fixed_build: "20210428");
    security_message(port: 0, data: report);
    exit(0);
  }
}

exit(99);