Moodle CMS <= 3.1.16, 3.4.x <= 3.4.7, 3.5.x <= 3.5.4 and 3.6.x <= 3.6.2 Multiple Vulnerabilities

# Copyright (C) 2019 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.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.113364");
  script_version("2021-11-04T03:03:45+0000");
  script_tag(name:"last_modification", value:"2021-11-04 03:03:45 +0000 (Thu, 04 Nov 2021)");
  script_tag(name:"creation_date", value:"2019-04-02 12:55:13 +0000 (Tue, 02 Apr 2019)");
  script_tag(name:"cvss_base", value:"5.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/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:"2019-10-09 23:49:00 +0000 (Wed, 09 Oct 2019)");

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

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

  script_cve_id("CVE-2019-3847", "CVE-2019-3850");

  script_name("Moodle CMS <= 3.1.16, 3.4.x <= 3.4.7, 3.5.x <= 3.5.4 and 3.6.x <= 3.6.2 Multiple Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_moodle_cms_detect.nasl");
  script_mandatory_keys("moodle/detected");

  script_tag(name:"summary", value:"Moodle CMS 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:

  - Users with the 'login as other users' capability (such as administrators/managers) can access other users'
  Dashboards, but the JavaScript those other users may have added to their Dashboard is not being escaped when
  being viewed by the user logging in on their behalf.

  - Links within assignment submission comments open directly in the same window.");

  script_tag(name:"impact", value:"An attacker might be able to steal session or cookie related info,
  or inject a malicious link to steal information or distribute malware.");

  script_tag(name:"affected", value:"Moodle CMS versions through 3.1.16, 3.4.0 through 3.4.7, 3.5.0 through 3.5.4 and 3.6.0 through 3.6.2.");

  script_tag(name:"solution", value:"Update to version 3.1.17, 3.4.8, 3.5.5 or 3.6.3 respectively.");

  script_xref(name:"URL", value:"https://moodle.org/mod/forum/discuss.php?d=384013#p1547745");
  script_xref(name:"URL", value:"https://moodle.org/mod/forum/discuss.php?d=384010");

  exit(0);
}

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

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

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

if( version_is_less( version: version, test_version: "3.1.17" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "3.1.17" );
  security_message( data: report, port: port );
  exit( 0 );
}

if( version_in_range( version: version, test_version: "3.4.0", test_version2: "3.4.7" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "3.4.8" );
  security_message( data: report, port: port );
  exit( 0 );
}

if( version_in_range( version: version, test_version: "3.5.0", test_version2: "3.5.4" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "3.5.5" );
  security_message( data: report, port: port );
  exit( 0 );
}

if( version_in_range( version: version, test_version: "3.6.0", test_version2: "3.6.2" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "3.6.3" );
  security_message( data: report, port: port );
  exit( 0 );
}

exit( 99 );