#VU96962 Improper Authorization in QNAP QTS and QuTS hero - CVE-2023-39298

Vulnerability identifier: #VU96962

Vulnerability risk: Low

CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-39298

CWE-ID: CWE-285

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
QNAP QTS
Server applications / File servers (FTP/HTTP)
QuTS hero
Hardware solutions / Firmware

Vendor: QNAP Systems, Inc.

Description

The vulnerability allows a local user to bypass authorization checks.

The vulnerability exists due to a missing capability check on several AJAX actions. A local user can access data or perform actions without the proper privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QNAP QTS: before 5.2.0.2782, 5.2.0.2782

QuTS hero: before h5.2.0.2782 build 20240601

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External links
https://www.qnap.com/en/security-advisory/qsa-24-28

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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