#VU72360 OS Command Injection in Fortinet FortiWeb - CVE-2023-23777

Vulnerability identifier: #VU72360

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-23777

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Fortinet FortiWeb
Server applications / Remote management servers, RDP, SSH

Vendor: Fortinet, Inc

Description

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

The vulnerability exists due to improper input validation. A remote user can execute arbitrary bash commands via crafted cli backup parameters.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiWeb: 6.3.6 - 6.3.18, 6.4.0 - 6.4.2, 7.0.0 - 7.0.1

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External links
https://fortiguard.fortinet.com/psirt/FG-IR-22-131

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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.