Vulnerability identifier: #VU52525

Vulnerability risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-28799

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
HBS 3 Hybrid Backup Sync
Server applications / Other server solutions

Vendor:

Description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to insufficient authorization checks. A remote attacker can bypass authorization checking and log in to a device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://www.qnap.com/en/security-advisory/qsa-21-13

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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?

Yes. This vulnerability is being exploited in the wild.