Vulnerability identifier: #VU28213

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-521

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
QNAP QTS
Server applications / File servers (FTP/HTTP)

Vendor: QNAP Systems, Inc.

Description

The vulnerability allows an attacker to perform brute-force attack and guess the password.

The vulnerability exists due to users could still access their accounts after reaching the maximum number of failed login attempts. An attacker can perform a brute-force attack and guess users' passwords.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QNAP QTS: 4.4.2.1270 20200410 - 4.4.2.1310 20200519

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External links
http://www.qnap.com/en/release-notes/qts/4.4.2.1312/20200521

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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.