Vulnerability identifier: #VU68104

Vulnerability risk: Medium

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-35846

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiTester
Server applications / Other server solutions

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to missing brute-force protection within the Telnet service. A remote non-authenticated attacker can guess credentials of an admin user via a brute force attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FortiTester: 7.1.0, 7.0.0, 4.2.0, 4.1.0 - 4.1.1, 4.0.0, 3.9.0 - 3.9.1, 3.7.0 - 3.7.1, 3.6.0, 3.4.0, 3.3.0 - 3.3.1, 3.2.0, 3.1.0, 3.0.0, 3.8.0, 2.9.0, 2.8.0, 2.7.0, 2.5.0, 2.4.0 - 2.4.1, 2.3.0

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External links
http://fortiguard.fortinet.com/psirt/FG-IR-22-244

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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 Internet.

Is there known malware, which exploits this vulnerability?

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