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Fortinet Fortigate TACACS+ authentication bypass (FG-IR-24-472)

critical Nessus Plugin ID 235826

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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-24-472 advisory.

 - A missing authentication for critical function in Fortinet FortiProxy versions 7.6.0 through 7.6.1, FortiSwitchManager version 7.2.5, and FortiOS versions 7.4.4 through 7.4.6 and version 7.6.0 may allow an attacker with knowledge of an existing admin account to access the device as a valid admin via an authentication bypass. (CVE-2025-22252)

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

Solution

For 7.4.x, upgrade to Fortigate version 7.4.7 or later. For 7.6.x, upgrade to Fortigate version 7.6.1 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-24-472

Plugin Details

Severity: Critical

ID: 235826

File Name: fortigate_FG-IR-24-472.nasl

Version: 1.2

Type: local

Family: Firewalls

Published: 5/13/2025

Updated: 5/28/2025

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

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-2025-22252

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/13/2025

Vulnerability Publication Date: 5/13/2025

Reference Information

CVE: CVE-2025-22252