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Fortinet Fortigate Authentication Bypass (FG-IR-22-377)

critical Nessus Plugin ID 165763

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Synopsis

Fortinet Firewall is missing one or more security-related updates.

Description

The version of Fortigate installed on the remote host is 7.0.x prior to 7.0.7 or 7.2.x prior to 7.2.2. It is, therefore, affected by a vulnerability as referenced in the FG-IR-22-377 advisory:

 - An authentication bypass using an alternative path or channel in FortiOS and FortiProxy may allow an unauthenticated attacker to perform operations on the administrative interface via specially crafted HTTPS requests.
 (CVE-2022-40684)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Fortigate version 7.0.7 / 7.2.2 or later.

See Also

http://www.nessus.org/u?f3062e82

http://www.nessus.org/u?8df9e8be

Plugin Details

Severity: Critical

ID: 165763

File Name: fortigate_FG-IR-22-377.nasl

Version: 1.9

Type: local

Family: Firewalls

Published: 10/7/2022

Updated: 2/24/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-40684

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/version, Host/Fortigate/model

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/6/2022

Vulnerability Publication Date: 10/6/2022

CISA Known Exploited Vulnerability Due Dates: 11/1/2022

Exploitable With

Core Impact

Metasploit (Fortinet FortiOS, FortiProxy, and FortiSwitchManager authentication bypass.)

Reference Information

CVE: CVE-2022-40684

IAVA: 2022-A-0401-S