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Fortinet FortiOS Certificate Validation (FG-IR-21-239)

medium Nessus Plugin ID 161660

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Synopsis

The remote host is affected by a certificate validation vulnerability.

Description

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.

Solution

See vendor advisory.

See Also

https://www.fortiguard.com/psirt/FG-IR-21-239

Plugin Details

Severity: Medium

ID: 161660

File Name: fortios_FG-IR-21-239.nasl

Version: 1.5

Type: local

Family: Firewalls

Published: 5/30/2022

Updated: 5/24/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.9

Temporal Score: 2.1

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

CVSS Score Source: CVE-2022-22306

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/3/2022

Vulnerability Publication Date: 5/3/2022

Reference Information

CVE: CVE-2022-22306

IAVA: 2022-A-0221-S