phpBB < 3.1.7-PL1 CSRF Vulnerability

2019-10-01T00:00:00
ID OPENVAS:1361412562310108656
Type openvas
Reporter Copyright (C) 2019 Greenbone Networks GmbH
Modified 2019-10-08T00:00:00

Description

phpBB is prone to a CSRF vulnerability.

                                        
                                            # Copyright (C) 2019 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) of the respective author(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:phpbb:phpbb";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108656");
  script_version("2019-10-08T07:00:10+0000");
  script_tag(name:"last_modification", value:"2019-10-08 07:00:10 +0000 (Tue, 08 Oct 2019)");
  script_tag(name:"creation_date", value:"2019-10-01 05:49:54 +0000 (Tue, 01 Oct 2019)");
  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_cve_id("CVE-2019-16993");
  script_name("phpBB < 3.1.7-PL1 CSRF Vulnerability");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("phpbb_detect.nasl");
  script_mandatory_keys("phpBB/installed");

  script_tag(name:"summary", value:"phpBB is prone to a CSRF vulnerability.");

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

  script_tag(name:"insight", value:"The includes/acp/acp_bbcodes.php has improper verification of a CSRF
  token on the BBCode page in the Administration Control Panel. An actual CSRF attack is possible if an
  attacker also manages to retrieve the session id of a reauthenticated administrator prior to targeting them.");

  script_tag(name:"impact", value:"Successful exploitation would allow an attacker to
  trick users into carrying out unwanted actions.");

  script_tag(name:"affected", value:"phpBB versions before 3.1.7-PL1.");

  script_tag(name:"solution", value:"Update to version 3.1.7-PL1 or later.");

  script_xref(name:"URL", value:"https://www.phpbb.com/community/viewtopic.php?t=2352606");
  script_xref(name:"URL", value:"https://github.com/phpbb/phpbb/commit/18abef716ecf42a35416444f3f84f5459d573789");

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

  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 );

vers = infos['version'];
path = infos['location'];

if( version_is_less( version:vers, test_version:"3.1.7.PL1" ) ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:"3.1.8 PL1", install_path:path );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );