#VU58821 Improper Authentication in Qfile - CVE-2021-38688

Vulnerability identifier: #VU58821

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-38688

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Qfile
Mobile applications / Apps for mobile phones

Vendor: QNAP Systems, Inc.

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker can bypass authentication process and and access private information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Qfile: before 3.0.0.1105

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External links
https://www.qnap.com/en/security-advisory/qsa-21-55

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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.