Arbitrary dll library loading in FortiClient for Windows

1) Untrusted search path

EUVDB-ID: #VU100461

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-2024-36507

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

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

The vulnerability exists due to usage of an untrusted search path in the online installer. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 7.0.0 - 7.4.0

CPE2.3

• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:fortinet:fortinet_forticlient:7.0.2:*:*:*:*:*:*:*
• 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:*:*:*:*:*:*:*

External links

https://fortiguard.fortinet.com/psirt/FG-IR-24-205

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.