#VU88234 Format string error in FortiOS - CVE-2023-48784

Vulnerability identifier: #VU88234

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-48784

CWE-ID: CWE-134

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
FortiOS
Operating systems & Components / Operating system

Vendor: Fortinet, Inc

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a format string error in CLI. A local privileged user can supply a specially crafted input via the CLI command and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiOS: 7.0.0 - 7.0.15, 7.2.0 - 7.2.7, 7.4.0 - 7.4.1

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External links
https://www.fortiguard.com/psirt/FG-IR-23-413

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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.