CVE-2021-44054

Open redirect

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An open redirect vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero and QTS. If exploited, this vulnerability allows attackers to redirect users to an untrusted page that contains malware. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero and QTS: QuTScloud c5.0.1.1949 and later QuTS hero h5.0.0.1949 build 20220215 and later QuTS hero h4.5.4.1951 build 20220218 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later

Se ha informado de una vulnerabilidad de redireccionamiento abierto que afecta al dispositivo de QNAP que ejecuta QuTScloud, QuTS hero y QTS. Si es explotada, esta vulnerabilidad permite a atacantes redirigir a usuarios a una página no confiable que contiene malware. Ya hemos corregido esta vulnerabilidad en las siguientes versiones de QuTScloud, QuTS hero y QTS: QuTScloud c5.0.1.1949 y posteriores QuTS hero h5.0.0.1949 build 20220215 y posteriores QuTS hero h4.5.4.1951 build 20220218 y posteriores QTS 5.0.0.1986 build 20220324 y posteriores QTS 4.5.4.1991 build 20220329 y posteriores

*Credits: Enio Pena Navarro and Michael Messner from Siemens Energy AG

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-19 CVE Reserved
2022-05-05 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/en/security-advisory/qsa-22-16	2023-11-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 5.0.0.1716 < 5.0.0.1986 Search vendor "Qnap" for product "Qts" and version " >= 5.0.0.1716 < 5.0.0.1986"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 4.3.3.0174 < 4.3.3.1945 Search vendor "Qnap" for product "Qts" and version " >= 4.3.3.0174 < 4.3.3.1945"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 4.3.4.0899 < 4.3.4.1976 Search vendor "Qnap" for product "Qts" and version " >= 4.3.4.0899 < 4.3.4.1976"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 4.3.6.0895 < 4.3.6.1965 Search vendor "Qnap" for product "Qts" and version " >= 4.3.6.0895 < 4.3.6.1965"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 4.4.0.0883 < 4.5.4.1991 Search vendor "Qnap" for product "Qts" and version " >= 4.4.0.0883 < 4.5.4.1991"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20170517		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20190322		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20190730		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20190921		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20191107		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20200109		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20200421		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20200611		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20200821		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20210327		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				4.2.6 Search vendor "Qnap" for product "Qts" and version "4.2.6"		build_20211215		Affected
Qnap Search vendor "Qnap"		Quts Hero Search vendor "Qnap" for product "Quts Hero"				< h4.5.4.1771 Search vendor "Qnap" for product "Quts Hero" and version " < h4.5.4.1771"		-		Affected
Qnap Search vendor "Qnap"		Quts Hero Search vendor "Qnap" for product "Quts Hero"				>= h5.0.0.1772 < h5.0.0.1986 Search vendor "Qnap" for product "Quts Hero" and version " >= h5.0.0.1772 < h5.0.0.1986"		-		Affected
Qnap Search vendor "Qnap"		Qutscloud Search vendor "Qnap" for product "Qutscloud"				< c5.0.1.1998 Search vendor "Qnap" for product "Qutscloud" and version " < c5.0.1.1998"		-		Affected