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Fortinet Fortigate Authentication bypass in administrative interface (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 prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-22-377 advisory.

 - An authentication bypass using an alternate path or channel [CWE-288] in Fortinet FortiOS version 7.2.0 through 7.2.1 and 7.0.0 through 7.0.6, FortiProxy version 7.2.0 and version 7.0.0 through 7.0.6 and FortiSwitchManager version 7.2.0 and 7.0.0 allows an unauthenticated atttacker to perform operations on the administrative interface via specially crafted HTTP or 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

Please upgrade to FortiOS version 7.0.5/7.0.7/7.2.2 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-22-377

Plugin Details

Severity: Critical

ID: 165763

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

Version: 1.10

Type: local

Family: Firewalls

Published: 10/7/2022

Updated: 10/29/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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: 9.1

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/version, Settings/ParanoidReport, 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