MitM attack in FortiADC

1) Improper certificate validation

EUVDB-ID: #VU94013

Risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-50178

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper certificate validation. A remote attacker can perform a Man-in-the-Middle (MitM) attack on the communication channel between the device and various remote servers such as private SDN connectors and FortiToken Cloud.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiADC: 6.0.0 - 7.4.0

CPE2.3

• cpe:2.3:a:fortinet:fortiadc:6.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiadc:6.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiadc:6.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiadc:7.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiadc:7.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiadc:7.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortiadc:7.4.0:*:*:*:*:*:*:*

External links

http://fortiguard.fortinet.com/psirt/FG-IR-22-298

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.