CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
20.2%
Apache Guacamole is prone to multiple vulnerabilities.
# Copyright (C) 2020 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:apache:guacamole";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.144236");
script_version("2021-07-22T02:00:50+0000");
script_tag(name:"last_modification", value:"2021-07-22 02:00:50 +0000 (Thu, 22 Jul 2021)");
script_tag(name:"creation_date", value:"2020-07-15 04:25:21 +0000 (Wed, 15 Jul 2020)");
script_tag(name:"cvss_base", value:"6.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-03-29 19:38:00 +0000 (Mon, 29 Mar 2021)");
script_cve_id("CVE-2020-9497", "CVE-2020-9498");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Apache Guacamole < 1.2.0 Multiple Vulnerabilities");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
script_family("General");
script_dependencies("gb_apache_guacamole_http_detect.nasl");
script_mandatory_keys("apache/guacamole/detected");
script_tag(name:"summary", value:"Apache Guacamole 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:
- Improper input validation of RDP static virtual channels (CVE-2020-9497)
- Dangling pointer in RDP static virtual channel handling (CVE-2020-9498)");
script_tag(name:"affected", value:"Apache Guacamole version 1.1.0 and prior.");
script_tag(name:"solution", value:"Update to version 1.2.0 or later.");
script_xref(name:"URL", value:"https://lists.apache.org/thread.html/r3f071de70ea1facd3601e0fa894e6cadc960627ee7199437b5a56f7f@%3Cannounce.apache.org%3E");
script_xref(name:"URL", value:"https://lists.apache.org/thread.html/r26fb170edebff842c74aacdb1333c1338f0e19e5ec7854d72e4680fc@%3Cannounce.apache.org%3E");
script_xref(name:"URL", value:"https://research.checkpoint.com/2020/apache-guacamole-rce/");
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: "1.2.0")) {
report = report_fixed_ver(installed_version: version, fixed_version: "1.2.0", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);
CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:H/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
20.2%