#VU83265 Untrusted search path in Fortinet FortiClient for Windows - CVE-2023-41840

Vulnerability identifier: #VU83265

Vulnerability 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-2023-41840

CWE-ID: CWE-426

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Fortinet FortiClient for Windows
Server applications / Other server solutions

Vendor: Fortinet, Inc

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to usage of an untrusted search path. A local user can perform a DLL Hijack attack via a malicious OpenSSL engine library in the search path.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 7.0.9, 7.2.0 - 7.2.1

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External links
https://fortiguard.com/psirt/FG-IR-23-274

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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.