CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:R
EPSS
Percentile
17.1%
An improper certificate validation vulnerability in FortiOS 6.0.0 through 6.0.14, 6.2.0 through 6.2.10, 6.4.0 through 6.4.8, 7.0.0 may allow a network adjacent and unauthenticated attacker to man-in-the-middle the communication between the FortiGate and some peers such as private SDNs and external cloud platforms.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(161660);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/05/24");
script_cve_id("CVE-2022-22306");
script_xref(name:"IAVA", value:"2022-A-0221-S");
script_name(english:"Fortinet FortiOS Certificate Validation (FG-IR-21-239)");
script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a certificate validation vulnerability.");
script_set_attribute(attribute:"description", value:
"An improper certificate validation vulnerability in FortiOS 6.0.0 through 6.0.14, 6.2.0 through 6.2.10, 6.4.0 through
6.4.8, 7.0.0 may allow a network adjacent and unauthenticated attacker to man-in-the-middle the communication between
the FortiGate and some peers such as private SDNs and external cloud platforms.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://www.fortiguard.com/psirt/FG-IR-21-239");
script_set_attribute(attribute:"solution", value:
"See vendor advisory.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-22306");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/05/03");
script_set_attribute(attribute:"patch_publication_date", value:"2022/05/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/30");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fortinet:fortios");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Firewalls");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("fortinet_version.nbin");
script_require_keys("Host/Fortigate/version");
exit(0);
}
include('vcf.inc');
include('vcf_extras_fortios.inc');
var app_name = 'FortiOS';
var app_info = vcf::get_app_info(app:app_name, kb_ver:'Host/Fortigate/version');
vcf::fortios::verify_product_and_model(product_name: app_name);
var constraints = [
{ 'min_version': '6.0', 'max_version' : '6.0.14','fixed_version' : '6.4.9' },
{ 'min_version': '6.2', 'max_version' : '6.2.10','fixed_version' : '6.4.9' },
{ 'min_version': '6.4', 'max_version' : '6.4.8','fixed_version' : '6.4.9' },
{ 'min_version': '7.0', 'fixed_version' : '7.0.1' }
];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_NOTE
);
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:R
EPSS
Percentile
17.1%