4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.6 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.1%
Elasticsearch Security is prone to an information disclosure vulnerability.
# Copyright (C) 2021 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:elastic:elasticsearch";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.117169");
script_version("2021-08-17T12:00:57+0000");
script_tag(name:"last_modification", value:"2021-08-17 12:00:57 +0000 (Tue, 17 Aug 2021)");
script_tag(name:"creation_date", value:"2021-01-19 14:15:51 +0000 (Tue, 19 Jan 2021)");
script_tag(name:"cvss_base", value:"4.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/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:"2019-10-09 23:36:00 +0000 (Wed, 09 Oct 2019)");
script_cve_id("CVE-2018-17247");
# nb: Only Elasticsearch Security affected. Java Security Manager is also enabled by default
# which will cause this attack to fail.
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Elastic Elasticsearch Security Information Disclosure Vulnerability (ESA-2018-19)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
script_family("Web application abuses");
script_dependencies("gb_elastic_elasticsearch_detect_http.nasl");
script_mandatory_keys("elastic/elasticsearch/detected");
script_tag(name:"summary", value:"Elasticsearch Security is prone to an information disclosure vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Elasticsearch Security contain an XXE flaw in Machine Learning's
find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's
Java Security Manager then an attacker could send a specially crafted request capable of leaking content
of local files on the Elasticsearch node.
Please note: by default Elasticsearch has the Java Security Manager enabled with policies which will
cause this attack to fail.");
script_tag(name:"impact", value:"This flaw could allow users to access information that they should
not have access to.");
script_tag(name:"affected", value:"Elasticsearch Security versions 6.5.0 and 6.5.1.");
script_tag(name:"solution", value:"Update to version 6.5.2 or later.");
script_xref(name:"URL", value:"https://discuss.elastic.co/t/elastic-stack-6-5-2-security-update/159594");
script_xref(name:"URL", value:"https://www.elastic.co/community/security");
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_in_range(version: version, test_version: "6.5.0", test_version2: "6.5.1")) {
report = report_fixed_ver(installed_version: version, fixed_version: "6.5.2", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.6 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.1%