Vulnerability identifier: #VU91783

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-21754

CWE-ID: CWE-916

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FortiOS
Operating systems & Components / Operating system
FortiProxy
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Fortinet, Inc

Description

The vulnerability allows a local user to decrypt backup files.

The vulnerability exist due to usage of a weak key derivation for backup file. A local user with super-admin profile and CLI access can decrypting the backup file.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiOS: 7.0.7 - 7.0.15, 7.2.3 - 7.2.8, 7.4.0 - 7.4.3, 6.4.0 - 6.4.15

FortiProxy: 7.2.4 - 7.2.10, 7.0.10 - 7.0.17, 7.4.0 - 7.4.2, 2.0.0 - 2.0.14

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External links
http://fortiguard.fortinet.com/psirt/FG-IR-23-423

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.