Authentication bypass in Fortinet FortiGate and FortiProxy

1) Authentication bypass using an alternate path or channel

EUVDB-ID: #VU68070

Risk: Critical

CVSSv4.0: 9.3 [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:A/U:Red]

CVE-ID: CVE-2022-40684

CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected device.

The vulnerability exists due to missing authentication within the administrative web interface. A remote non-authenticated attacker can bypass authentication and compromise the affected device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiOS: 7.0.0 - 7.2.1

FortiProxy: 7.0.0 - 7.2.0

CPE2.3

• cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.0.3:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.0.4:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.0.5:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.0.6:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.0.0:*:*:*:*:*:*:*

External links

https://twitter.com/Gi7w0rm/status/1578299492822003712
https://docs.fortinet.com/document/fortigate/7.0.7/fortios-release-notes/289806/resolved-issues

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?

Yes. This vulnerability is being exploited in the wild.