Authenticated command injection in FortiADC

1) OS Command Injection

EUVDB-ID: #VU70661

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-39947

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the web GUI. A remote authenticated user can send a specially crafted HTTP request to the application and execute arbitrary OS commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiADC: 5.4.0 - 7.0.2

External links

http://fortiguard.fortinet.com/psirt/FG-IR-22-061

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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