Fortinet Fortigate Heap-based buffer overflow in sslvpnd (FG-IR-22-398)

critical Nessus Plugin ID 168637

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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-22-398 advisory.

- A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. (CVE-2022-42475)

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 6.0.16/6.2.12/6.4.11/7.0.9/7.2.3 or later.

Plugin Details

Severity: Critical

ID: 168637

File Name: fortigate_FG-IR-22-398.nasl

Version: 1.10

Type: local

Family: Firewalls

Published: 12/12/2022

Updated: 10/29/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

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-2022-42475

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: Settings/ParanoidReport, Host/Fortigate/model, Host/Fortigate/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/12/2022

Vulnerability Publication Date: 12/12/2022

CISA Known Exploited Vulnerability Due Dates: 1/3/2023

Reference Information

CVE: CVE-2022-42475

IAVA: 2022-A-0512-S

Detections

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