CVE-2021-38686

Improper Authentication Vulnerability in VioStor

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An improper authentication vulnerability has been reported to affect QNAP device, VioStor. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of QVR: QVR FW 5.1.6 build 20211109 and later

Se ha informado de una vulnerabilidad de autenticación inapropiada que afecta al dispositivo de QNAP, VioStor. Si es explotada, esta vulnerabilidad permite a atacantes comprometer la seguridad del sistema. Ya hemos corregido esta vulnerabilidad en las siguientes versiones de QVR: QVR FW 5.1.6 build 20211109 y posteriores

*Credits: JPCERT/CC

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

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

2021-08-13 CVE Reserved
2021-11-26 CVE Published
2024-08-11 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/en/security-advisory/qsa-21-52	2021-12-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qnap Search vendor "Qnap"		Qvr Search vendor "Qnap" for product "Qvr"				< 5.1.6 Search vendor "Qnap" for product "Qvr" and version " < 5.1.6"		-		Affected