Firewall deny policy bypass in FortiOS and FortiProxy



Published: 2023-12-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-47536
CWE-ID CWE-284
Exploitation vector Network
Public exploit N/A
Vulnerable software
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FortiOS
Operating systems & Components / Operating system

FortiProxy
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Fortinet, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper access control

EUVDB-ID: #VU84435

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-47536

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

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 - 7.2.0

FortiProxy: 2.0.0 - 7.2.3

External links

http://fortiguard.com/psirt/FG-IR-23-432


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.



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