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Fortinet Fortigate File-Filter Bypass in Explicit Web Proxy Policy (FG-IR-24-282)

critical Nessus Plugin ID 214075

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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-24-282 advisory.

 - An improper neutralization of crlf sequences in http headers ('http response splitting') in Fortinet FortiOS 7.2.0 through 7.6.0, FortiProxy 7.2.0 through 7.4.5 allows attacker to execute unauthorized code or commands via crafted HTTP header. (CVE-2024-54021)

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 7.2.9 / 7.4.5 / 7.6.1 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-24-282

Plugin Details

Severity: Critical

ID: 214075

File Name: fortigate_FG-IR-24-282.nasl

Version: 1.3

Type: local

Family: Firewalls

Published: 1/14/2025

Updated: 2/4/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2024-54021

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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: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: 1/14/2025

Vulnerability Publication Date: 1/14/2025

Reference Information

CVE: CVE-2024-54021

IAVA: 2025-A-0022