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
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
47.9%
The remote host is running a version of Fortinet FortiClient prior to 6.2.0. It is, therefore, affected by an information disclosure man-in-the-middle vulnerability in the FortiGuard services communication protocol due to the use of a hardcoded cryptographic key. A remote attacker with knowledge of the hardcoded key can exploit this via the network to eavesdrop and modify information sent and received from FortiGuard servers.
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(131285);
script_version("1.3");
script_cvs_date("Date: 2019/11/27");
script_cve_id("CVE-2018-9195");
script_name(english:"Fortinet FortiClient < 6.2.0 Information Disclosure MitM (FG-IR-18-100)");
script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by an information disclosure vulnerability.");
script_set_attribute(attribute:"description", value:
"The remote host is running a version of Fortinet FortiClient prior to 6.2.0. It is, therefore, affected by an
information disclosure man-in-the-middle vulnerability in the FortiGuard services communication protocol due to the use
of a hardcoded cryptographic key. A remote attacker with knowledge of the hardcoded key can exploit this via the network
to eavesdrop and modify information sent and received from FortiGuard servers.");
script_set_attribute(attribute:"see_also", value:"https://fortiguard.com/psirt/FG-IR-18-100");
# https://sec-consult.com/en/blog/advisories/weak-encryption-cipher-and-hardcoded-cryptographic-keys-in-fortinet-products/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ca502f28");
script_set_attribute(attribute:"solution", value:
"Upgrade to Fortinet FortiClient 6.2.0 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-9195");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/21");
script_set_attribute(attribute:"patch_publication_date", value:"2019/08/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/25");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:fortinet:forticlient");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("forticlient_detect.nbin");
script_require_keys("installed_sw/FortiClient");
exit(0);
}
include('vcf.inc');
get_kb_item_or_exit('installed_sw/FortiClient');
app_info = vcf::get_app_info(app:'FortiClient');
constraints = [
{'max_version' : '6.0.6', 'fixed_version' : '6.2.0'}
];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
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
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
47.9%