#VU84856 Command Injection in FortiPortal - CVE-2023-48791

Vulnerability identifier: #VU84856

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-2023-48791

CWE-ID: CWE-77

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 escalate privileges on the system.

The vulnerability exists due to improper input validation. A remote user with R/W permissions can pass specially crafted arguments via the Schedule System Backup page field and execute arbitrary OS commands.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiPortal: 5.3.0 - 7.2.0

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External links
https://fortiguard.com/psirt/FG-IR-23-425

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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.