Vulnerability identifier: #VU22811

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-17652

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 cause a denial of service condition on the system with running FortiClient for Linux through IPC socket by argv through nanomsg.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiClient for Windows: 6.0.0 - 6.0.8, 6.2.0 - 6.2.1, 5.6.0 - 5.6.6, 5.4.0 - 5.4.5, 5.2.0 - 5.2.8, 5.0.1 - 5.0.11, 4.3.0 - 4.3.3.445, 4.2.0, 4.1.0, 4.0.0 - 4.0.2, 1.2.0 - 1.2.5, 1.0.0 - 1.0.5

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External links
http://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.