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Fortinet FortiOS Buffer Overflow (FG-IR-21-206)

medium Nessus Plugin ID 163253

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Synopsis

The remote host is affected by a buffer overflow vulnerability.

Description

The remote host is running a version of FortiOS that is 6.0.x through 6.0.14, 6.2.x through 6.2.10, 6.4.x through 6.4.8, or 7.0.x through 7.0.5. It is, therefore, affected by a buffer overflow vulnerability. An authenticated, remote attacker can exploit this issue, via the TFTP protocol with crafted CLI 'execute restore image' and 'execute certificate remote' operations, to execute arbitrary code or commands in the system.

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

Solution

Update FortiOS to version 6.2.11, 6.4.9, 7.0.6, 7.2.0, or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-21-206

Plugin Details

Severity: Medium

ID: 163253

File Name: fortios_FG-IR-21-206.nasl

Version: 1.5

Type: local

Family: Firewalls

Published: 7/15/2022

Updated: 10/17/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2021-43072

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

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

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

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/5/2022

Vulnerability Publication Date: 7/5/2022

Reference Information

CVE: CVE-2021-43072

IAVA: 2022-A-0264-S