Improper Restriction of Rendered UI Layers or Frames in QNAP QTS, QuTS hero and QuTScloud



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-19957
CWE-ID CWE-1021
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 one medium risk vulnerability.

1) Improper Restriction of Rendered UI Layers or Frames

EUVDB-ID: #VU56447

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-19957

CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to insufficient HTTP security headers. A remote attacker can launch privacy and security attacks. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

QNAP QTS: before

QuTS hero: before h4.5.4.1771 build 20210825

QuTScloud: before c4.5.6.1755 build 20210809

CPE2.3 External links

https://www.qnap.com/en/security-advisory/qsa-21-03


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.



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