#VU77198 Resource management error in FortiNAC and FortiNAC-F - CVE-2023-22633

Vulnerability identifier: #VU77198

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-22633

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiNAC
Server applications / IDS/IPS systems, Firewalls and proxy servers
FortiNAC-F
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources during SSL renegotation. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiNAC: 8.7.0 - 9.4.1

FortiNAC-F: 7.2.0

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External links
https://fortiguard.com/psirt/FG-IR-22-521

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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.