#VU62774 External Control of File Name or Path in Fortinet FortiClient for Windows - CVE-2021-43066

Vulnerability identifier: #VU62774

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-2021-43066

CWE-ID: CWE-73

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 escalate privileges on the system.

The vulnerability exists due to application allows an attacker to control path of the files. A local user can delete or execute files with admin rights via the MSI installer.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 6.0.0 - 6.0.10, 6.2.0 - 6.2.9, 6.4.0 - 6.4.6, 7.0.0 - 7.0.2

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External links
https://fortiguard.fortinet.com/psirt/FG-IR-21-154

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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.