CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
78.6%
Concrete CMS is prone to multiple vulnerabilities.
# 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:concretecms:concrete_cms";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.146833");
script_version("2022-12-08T10:12:32+0000");
script_tag(name:"last_modification", value:"2022-12-08 10:12:32 +0000 (Thu, 08 Dec 2022)");
script_tag(name:"creation_date", value:"2021-10-05 08:51:19 +0000 (Tue, 05 Oct 2021)");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.1/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:"2021-10-01 20:36:00 +0000 (Fri, 01 Oct 2021)");
script_cve_id("CVE-2021-22949", "CVE-2021-22950", "CVE-2021-22953", "CVE-2021-40097",
"CVE-2021-40098", "CVE-2021-40099", "CVE-2021-40100", "CVE-2021-40102",
"CVE-2021-40103", "CVE-2021-40104", "CVE-2021-40105", "CVE-2021-40106",
"CVE-2021-40107", "CVE-2021-40108", "CVE-2021-40109");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Concrete CMS < 8.5.6 Multiple Vulnerabilities");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
script_family("Web application abuses");
script_dependencies("gb_concrete5_detect.nasl");
script_mandatory_keys("concrete5/installed");
script_tag(name:"summary", value:"Concrete CMS is prone to multiple vulnerabilities.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The following vulnerabilities exist:
- CVE-2021-22949: CSRF allows an attacker to duplicate files which can lead to UI inconvenience,
and exhaustion of disk space
- CVE-2021-22950: CSFR allowing attachments to comments in the conversation section to be deleted
- CVE-2021-22953: CSRF allows an attacker to clone topics which can lead to UI inconvenience, and
exhaustion of disk space
- CVE-2021-40097: Authenticated path traversal leads to remote code execution via uploaded PHP
code, related to the bFilename parameter
- CVE-2021-40098: Path traversal leading to RCE via external form by adding a regular expression
- CVE-2021-40099: Fetching the update json scheme over HTTP leads to remote code execution
- CVE-2021-40100: Stored XSS can occur in Conversations when the Active Conversation Editor is
set to Rich Text
- CVE-2021-40102: Arbitrary File deletion can occur via PHAR deserialization in is_dir
- CVE-2021-40103: Path Traversal can lead to arbitrary file reading and SSRF
- CVE-2021-40104: SVG sanitizer bypass
- CVE-2021-40105: XSS via Markdown Comments
- CVE-2021-40106: Unauthenticated stored XSS in blog comments via the website field
- CVE-2021-40107: Stored XSS in comment section/FileManger
- CVE-2021-40108: CSRF in the calendar
- CVE-2021-40109: SSRF");
script_tag(name:"affected", value:"Concrete CMS versions prior to 8.5.6.");
script_tag(name:"solution", value:"Update to version 8.5.6 or later.");
script_xref(name:"URL", value:"https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes");
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: "8.5.6")) {
report = report_fixed_ver(installed_version: version, fixed_version: "8.5.6", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
78.6%