Vulnerability identifier: #VU74983

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-43946

CWE-ID: CWE-732

Exploitation vector: Local network

Exploit availability: No

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

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incorrect permission assignment to a windows pipe in FortiClient Logging daemon. A remote attacker on the same file sharing network can write arbitrary data to a windows pipe and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 7.0.0 - 7.0.7, 6.4.0 - 6.4.9, 6.2.0 - 6.2.9, 6.0.0 - 6.0.10

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External links
http://fortiguard.com/psirt/FG-IR-22-429
http://www.zerodayinitiative.com/advisories/ZDI-23-1104/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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