#VU55541 Arbitrary file upload in FortiPortal - CVE-2021-32594

Vulnerability identifier: #VU55541

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-32594

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiPortal
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of files during file upload. A remote user can upload a malicious file to the system and tamper with the underlying system's files.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiPortal: 3.2.0 - 6.0.4

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External links
https://www.fortiguard.com/psirt/FG-IR-21-092

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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.