#VU22809 Input validation error in Fortinet FortiClient for Windows - CVE-2019-16152

Vulnerability identifier: #VU22809

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-16152

CWE-ID: CWE-20

Exploitation vector: 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 perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated attacker can malformat nanomsg and cause a denial of service condition through IPC socket on the system with running FortiClient for Linux.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 0, 1.0.0 - 1.0.5, 1.2.0 - 1.2.5, 4.0.0 - 4.0.2, 4.1.0, 4.2.0, 4.3.0 - 4.3.3.445, 5.0.1 - 5.0.11, 5.2.0 - 5.2.028, 5.4.0 - 5.4.5, 5.6.0 - 5.6.6, 6.0.0 - 6.0.8, 6.2.0 - 6.2.1

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External links
https://fortiguard.com/psirt/FG-IR-19-238

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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