#VU77670 Deserialization of Untrusted Data in FortiNAC and FortiNAC-F - CVE-2023-33299

Vulnerability identifier: #VU77670

Vulnerability risk: Critical

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red]

CVE-ID: CVE-2023-33299

CWE-ID: CWE-502

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 execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can send a specially crafted request to port 1050/TCP and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiNAC: 8.3.0 - 9.4.2

FortiNAC-F: 7.2.0 - 7.2.1

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External links
https://fortiguard.fortinet.com/psirt/FG-IR-23-074

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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.