Brute-force attack in QNAP QTS



Published: 2020-05-25
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID N/A
CWE ID CWE-521
Exploitation vector Network
Public exploit N/A
Vulnerable software
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QNAP QTS
Server applications / File servers (FTP/HTTP)

Vendor QNAP Systems, Inc.

Security Advisory

This security advisory describes one low risk vulnerability.

1) Weak password requirements

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 - Weak Password Requirements

Exploit availability: No

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, 4.4.2.1273 20200413, 4.4.2.1302 20200512, 4.4.2.1310 20200519

CPE External links

https://www.qnap.com/en/release-notes/qts/4.4.2.1312/20200521

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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