Multiple vulnerabilities in QNAP QTS, QuTS hero and QuTScloud

Published: 2024-04-29 | Updated: 2024-06-25

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-51364 CVE-2023-51365
CWE-ID	CWE-22
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	QNAP QTS Server applications / File servers (FTP/HTTP) QuTS hero Hardware solutions / Firmware QuTScloud Operating systems & Components / Operating system
Vendor	QNAP Systems, Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Path traversal

EUVDB-ID: #VU89039

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-51364

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

QNAP QTS: All versions

QuTS hero: All versions

QuTScloud: All versions

CPE2.3

External links

https://www.qnap.com/en/security-advisory/qsa-24-14
https://www.zerodayinitiative.com/advisories/ZDI-24-475/
https://www.zerodayinitiative.com/advisories/ZDI-24-825/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.

2) Path traversal

EUVDB-ID: #VU89040