Multiple vulnerabilities in QNAP operating systems



| Updated: 2024-04-19
Risk Critical
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-20032
CVE-2023-20052
CWE-ID CWE-122
CWE-611
Exploitation vector Network
Public exploit Public exploit code for vulnerability #2 is available.
Vulnerable software
 QuTScloud
Operating systems & Components / Operating system

QNAP QTS
Server applications / File servers (FTP/HTTP)

QuTS hero
Hardware solutions / Firmware

Vendor QNAP Systems, Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU72297

Risk: Critical

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20032

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the HFS+ partition file parser. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

QuTScloud: before c5.0.1.2374

QNAP QTS: before 5.0.1.2376 20230421

QuTS hero: before h5.0.1.2376 build 20230421

CPE2.3 External links

http://www.qnap.com/en/security-advisory/qsa-23-26


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.

2) XML External Entity injection

EUVDB-ID: #VU72298

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-20052

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to enabling XML entity substitution. A remote attacker can pass a specially crafted XML code to the antivirus and view bytes from any file that may be read by the ClamAV scanning process.


Mitigation

Install update from vendor's website.

Vulnerable software versions

QuTScloud: before c5.0.1.2374

QNAP QTS: before 5.0.1.2376 20230421

QuTS hero: before h5.0.1.2376 build 20230421

CPE2.3 External links

http://www.qnap.com/en/security-advisory/qsa-23-26


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. However, proof of concept for this vulnerability is available.



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