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Fortinet Fortigate Weak key derivation for backup file (FG-IR-23-423)

medium Nessus Plugin ID 200327

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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-23-423 advisory.

 - A use of password hash with insufficient computational effort vulnerability [CWE-916] affecting FortiOS version 7.4.3 and below, 7.2 all versions, 7.0 all versions, 6.4 all versions and FortiProxy version 7.4.2 and below, 7.2 all versions, 7.0 all versions, 2.0 all versions may allow a privileged attacker with super-admin profile and CLI access to decrypting the backup file. (CVE-2024-21754)

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 6.4.999999 / 7.0.999999 / 7.2.9 / 7.4.4 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-23-423

Plugin Details

Severity: Medium

ID: 200327

File Name: fortigate_FG-IR-23-423.nasl

Version: 1.5

Type: local

Family: Firewalls

Published: 6/11/2024

Updated: 10/28/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2024-21754

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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/model, Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2024

Vulnerability Publication Date: 6/11/2024

Reference Information

CVE: CVE-2024-21754