3.1 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
4.9 Medium
AI Score
Confidence
High
3.5 Low
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:S/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
29.0%
Elasticsearch 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("1.3.6.1.4.1.25623.1.0.117181");
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:"2021-01-25 13:07:06 +0000 (Mon, 25 Jan 2021)");
script_tag(name:"cvss_base", value:"3.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:P/I:N/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-11-23 12:15:00 +0000 (Mon, 23 Nov 2020)");
script_cve_id("CVE-2020-7020");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Elastic Elasticsearch Information Disclosure Vulnerability (ESA-2020-13)");
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 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:"A document disclosure flaw was found in Elasticsearch when Document or
Field Level Security is used. Search queries do not properly preserve security permissions when executing
certain complex queries.");
script_tag(name:"impact", value:"This could result in the search disclosing the existence of documents
the attacker should not be able to view. This could result in an attacker gaining additional insight
into potentially sensitive indices.");
script_tag(name:"affected", value:"Elasticsearch versions before 6.8.13 and 7.x before 7.9.2.");
script_tag(name:"solution", value:"Update to version 6.8.13, 7.9.2 or later.");
script_xref(name:"URL", value:"https://discuss.elastic.co/t/elastic-stack-7-9-3-and-6-8-13-security-update/253033");
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_is_less(version: version, test_version: "6.8.13")) {
report = report_fixed_ver(installed_version: version, fixed_version: "6.8.13", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range(version: version, test_version: "7.0.0", test_version2: "7.9.1")) {
report = report_fixed_ver(installed_version: version, fixed_version: "7.9.2", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
3.1 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
4.9 Medium
AI Score
Confidence
High
3.5 Low
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:S/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
29.0%