Roundcube Webmail < 1.3.7 Enigma Plugin PGP Vulnerability (EFAIL)

# Copyright (C) 2018 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:roundcube:webmail";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.108457");
  script_version("2023-02-02T10:09:00+0000");
  script_tag(name:"last_modification", value:"2023-02-02 10:09:00 +0000 (Thu, 02 Feb 2023)");
  script_tag(name:"creation_date", value:"2018-08-26 17:24:50 +0200 (Sun, 26 Aug 2018)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-12-13 00:03:00 +0000 (Thu, 13 Dec 2018)");
  # nb: CVE-2017-17688 is DISPUTED with the following:
  # NOTE: third parties report that this is a problem in applications that mishandle the Modification
  # Detection Code (MDC) feature or accept an obsolete packet type, not a problem in the OpenPGP specification.
  # This CVE is kept for tracking / reference reasons.
  script_cve_id("CVE-2017-17688", "CVE-2018-19205");

  script_name("Roundcube Webmail < 1.3.7 Enigma Plugin PGP Vulnerability (EFAIL)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("sw_roundcube_http_detect.nasl");
  script_mandatory_keys("roundcube/detected");

  script_tag(name:"summary", value:"Roundcube Webmail is prone to an information disclosure
  vulnerability in the Enigma Plugin.");

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

  script_tag(name:"insight", value:"Roundcube Webmail with enabled PGP support via the Enigma Plugin
  mishandle the Modification Detection Code (MDC) feature or accept an obsolete packet type which
  can indirectly lead to plaintext exfiltration, aka EFAIL.");

  script_tag(name:"affected", value:"Roundcube Webmail prior to version 1.3.7.");

  script_tag(name:"solution", value:"Update to version 1.3.7 or later.");

  script_xref(name:"URL", value:"https://github.com/roundcube/roundcubemail/issues/6289");
  script_xref(name:"URL", value:"https://roundcube.net/news/2018/07/27/update-1.3.7-released");
  script_xref(name:"URL", value:"https://efail.de/");

  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);

version = infos["version"];
location = infos["location"];

if (version_is_less(version: version, test_version: "1.3.7")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "1.3.7", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);