Path traversal in FortiSIEM

1) Path traversal

EUVDB-ID: #VU81929

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-2023-40714

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to input validation error when processing directory traversal sequences in FortiSIEM file upload components. A remote authenticated user can send specially crafted HTTP requests to FortiSIEM GUI and overwrite arbitrary files on the system, leading to privilege escalation.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FortiSIEM: 6.4.0 - 7.0.0

CPE2.3

• cpe:2.3:a:fortinet:fortisiem:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortisiem:6.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortisiem:6.7.3:*:*:*:*:*:*:*

External links

http://fortiguard.fortinet.com/psirt/FG-IR-23-085

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.