CVE-2021-34360

CSRF Bypass in Proxy Server

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A cross-site request forgery (CSRF) vulnerability has been reported to affect QNAP device running Proxy Server. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of Proxy Server: QTS 4.5.x: Proxy Server 1.4.2 ( 2021/12/30 ) and later QuTS hero h5.0.0: Proxy Server 1.4.3 ( 2022/01/18 ) and later QuTScloud c4.5.6: Proxy Server 1.4.2 ( 2021/12/30 ) and later

Se ha informado de una vulnerabilidad de tipo cross-site request forgery (CSRF) que afecta al dispositivo QNAP ejecutando Servidor Proxy. Si es explotado, esta vulnerabilidad permite a atacantes remotos inyectar código malicioso. Ya hemos corregido esta vulnerabilidad en las siguientes versiones de Proxy Server: QTS 4.5.x: Proxy Server 1.4.2 ( 2021/12/30 ) y posteriores QuTS hero h5.0.0: Proxy Server 1.4.3 ( 2022/01/18 ) y posteriores QuTScloud c4.5.6: Proxy Server 1.4.2 ( 2021/12/30 ) y posteriores

*Credits: Tony Martin, a security researcher

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-06-08 CVE Reserved
2022-05-26 CVE Published
2024-08-17 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-352: Cross-Site Request Forgery (CSRF)

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/en/security-advisory/qsa-22-18	2022-06-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qnap Search vendor "Qnap"	Nas Proxy Server Search vendor "Qnap" for product "Nas Proxy Server"	>= 1.4.0 < 1.4.2 Search vendor "Qnap" for product "Nas Proxy Server" and version " >= 1.4.0 < 1.4.2"	-	Affected	in	Qnap Search vendor "Qnap"	Qts Search vendor "Qnap" for product "Qts"	>= 4.5.1 <= 4.5.4.2012 Search vendor "Qnap" for product "Qts" and version " >= 4.5.1 <= 4.5.4.2012"	-	Safe
Qnap Search vendor "Qnap"	Nas Proxy Server Search vendor "Qnap" for product "Nas Proxy Server"	>= 1.4.0 < 1.4.3 Search vendor "Qnap" for product "Nas Proxy Server" and version " >= 1.4.0 < 1.4.3"	-	Affected	in	Qnap Search vendor "Qnap"	Quts Hero Search vendor "Qnap" for product "Quts Hero"	h5.0.0 Search vendor "Qnap" for product "Quts Hero" and version "h5.0.0"	-	Safe
Qnap Search vendor "Qnap"	Nas Proxy Server Search vendor "Qnap" for product "Nas Proxy Server"	>= 1.4.0 < 1.4.2 Search vendor "Qnap" for product "Nas Proxy Server" and version " >= 1.4.0 < 1.4.2"	-	Affected	in	Qnap Search vendor "Qnap"	Qutscloud Search vendor "Qnap" for product "Qutscloud"	c4.5.6 Search vendor "Qnap" for product "Qutscloud" and version "c4.5.6"	-	Safe