Improper authentication in FortiProxy fgfmd

1) Improper authentication

EUVDB-ID: #VU100401

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26011

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper authentication within the fgfmd daemon. A remote non-authenticated attacker can inject packets in tunnels established between a FortiManager and the targeted device.

Note, the packets can be only injected, but not read.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FortiProxy: 1.0.0 - 7.4.3

CPE2.3

• cpe:2.3:h:fortinet:fortiproxy:1.0.7:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:1.1.6:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:1.2.13:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:2.0.14:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.0.19:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.2.9:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.4.3:*:*:*:*:*:*:*

External links

https://www.fortiguard.com/psirt/FG-IR-24-032

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.