Mahara <16.10.9, <17.04.7, <17.10.4 XSS Vulnerability

# SPDX-FileCopyrightText: 2018 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.112255");
  script_version("2023-07-20T05:05:17+0000");
  script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
  script_tag(name:"creation_date", value:"2018-04-16 15:29:52 +0200 (Mon, 16 Apr 2018)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-05-16 14:34:00 +0000 (Wed, 16 May 2018)");

  script_cve_id("CVE-2018-6182");

  script_name("Mahara <16.10.9, <17.04.7, <17.10.4 XSS Vulnerability");

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

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("secpod_mahara_detect.nasl");
  script_mandatory_keys("mahara/detected");

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

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

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

  script_tag(name:"affected", value:"Mahara 16.10 before 16.10.9 and 17.04 before 17.04.7 and 17.10 before 17.10.4");

  script_tag(name:"insight", value:"Mahara is vulnerable to bad input when TinyMCE is bypassed by POST packages.
  Therefore, Mahara should not rely on TinyMCE's code stripping alone but also clean input on the server /
  PHP side as one can create own packets of POST data containing bad content with which to hit the server.");

  script_tag(name:"solution", value:"Update Mahara to version 16.10.9, 17.04.7, 17.10.4 or later.");

  script_xref(name:"URL", value:"https://bugs.launchpad.net/mahara/+bug/1744789");
  script_xref(name:"URL", value:"https://mahara.org/interaction/forum/topic.php?id=8215");

  exit(0);
}

CPE = "cpe:/a:mahara:mahara";

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 =~ "^16\.10\." && version_is_less(version:version, test_version:"16.10.9")) {
  VULN = TRUE;
  fix = "16.10.9";
} else if (version =~ "^17\.04\." && version_is_less(version:version, test_version:"17.04.7")) {
  VULN = TRUE;
  fix = "17.04.7";
} else if (version =~ "^17\.10\." && version_is_less(version:version, test_version:"17.10.4")) {
  VULN = TRUE;
  fix = "17.10.4";
}

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

exit(99);