Privilege escalation in FortiOS and FortiProxy

1) Improper Privilege Management

EUVDB-ID: #VU85208

Risk: Medium

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

CVE-ID: CVE-2023-44250

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to improper privilege management when handling HA requests. A remote user can execute elevated actions via a specially crafted HTTP request.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiOS: 7.2.0 - 7.4.1

FortiProxy: 7.4.0 - 7.4.1

CPE2.3

• cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.3:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.4:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.2.5:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*
• cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:*
• cpe:2.3:h:fortinet:fortiproxy:7.4.1:*:*:*:*:*:*:*

External links

https://www.fortiguard.com/psirt/FG-IR-23-315

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.