#VU84435 Improper access control in FortiOS and FortiProxy - CVE-2023-47536

Vulnerability identifier: #VU84435

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-47536

CWE-ID: CWE-284

Exploitation vector: Network

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 remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can bypass the firewall deny geolocalisation policy during GeoIP database update.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiOS: 6.4.0 - 6.4.14, 7.2.0

FortiProxy: 2.0.0 - 2.0.12, 7.0.0 - 7.0.9, 7.2.0 - 7.2.3

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External links
https://fortiguard.com/psirt/FG-IR-23-432

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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