3.6 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
3.5 Low
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.0%
Kibana is prone to a timeout bypass 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:kibana";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.145941");
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:"2021-05-14 04:51:46 +0000 (Fri, 14 May 2021)");
script_tag(name:"cvss_base", value:"3.6");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-05-21 16:40:00 +0000 (Fri, 21 May 2021)");
script_cve_id("CVE-2021-22136");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Elastic Kibana Timeout Bypass Vulnerability (ESA-2021-07)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
script_family("Web application abuses");
script_dependencies("gb_elastic_kibana_detect_http.nasl");
script_mandatory_keys("elastic/kibana/detected");
script_tag(name:"summary", value:"Kibana is prone to a timeout bypass vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"A flaw in Kibana's session timeout was discovered where the
xpack.security.session.idleTimeout setting is not being respected. This was caused by background
polling activities unintentionally extending authenticated users sessions, preventing a user
session from timing out.");
script_tag(name:"affected", value:"Kibana versions prior to 6.8.15 and 7.12.0.");
script_tag(name:"solution", value:"Update to version 6.8.15, 7.12.0 or later.");
script_xref(name:"URL", value:"https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125");
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: "6.8.15")) {
report = report_fixed_ver(installed_version: version, fixed_version: "6.8.15", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version =~ "^7\." && version_is_less(version: version, test_version: "7.12.0")) {
report = report_fixed_ver(installed_version: version, fixed_version: "7.12.0", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
3.6 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
3.5 Low
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.1 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.0%