Privilege escalation in Fortinet FortiClient for Windows

1) Improper access control

EUVDB-ID: #VU107308

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-40586

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

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

The vulnerability exists due to improper access restrictions in FortiSSLVPNd service pipe. A local user can escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 7.0.3 - 7.4.0

CPE2.3

• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.11:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.12:*:*:*:*:*:*:*

External links

https://fortiguard.fortinet.com/psirt/FG-IR-23-279

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.