CVE-2021-28798

Relative Path Traversal Vulnerability in QTS and QuTS hero

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A relative path traversal vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to modify files that impact system integrity. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QNAP NAS running QTS 4.5.3 are not affected.

Se ha reportado una vulnerabilidad de salto de ruta relativa que afecta al NAS de QNAP que ejecuta QTS y QuTS hero. Si es explotada, esta vulnerabilidad permite a atacantes modificar archivos que afectan la integridad del sistema. QNAP ya ha corregido esta vulnerabilidad en las siguientes versiones: QTS versión 4.5.2.1630 Build 20210406 ??y posterior QTS versión 4.3.6.1663 Build 20210504 y posterior QTS versión 4.3.3.1624 Build 20210416 y posterior QuTS hero versión h4.5.2.1638 Build 20210414 y posterior. QNAP NAS ejecutando QTS versión 4.5.3 no están afectados

*Credits: ZUSO ART

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-18 CVE Reserved
2021-05-21 CVE Published
2024-02-03 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-23: Relative Path Traversal
CWE-284: Improper Access Control

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/zh-tw/security-advisory/qsa-21-14	2022-10-18

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"				>= 4.3.2.0144 < 4.3.3.1624 Search vendor "Qnap" for product "Qts" and version " >= 4.3.2.0144 < 4.3.3.1624"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 4.3.4.0000 < 4.3.6.1663 Search vendor "Qnap" for product "Qts" and version " >= 4.3.4.0000 < 4.3.6.1663"		-		Affected
Qnap Search vendor "Qnap"		Qts Search vendor "Qnap" for product "Qts"				>= 4.4.0000 < 4.5.2.1630 Search vendor "Qnap" for product "Qts" and version " >= 4.4.0000 < 4.5.2.1630"		-		Affected
Qnap Search vendor "Qnap"		Quts Hero Search vendor "Qnap" for product "Quts Hero"				< h4.5.2.1638 Search vendor "Qnap" for product "Quts Hero" and version " < h4.5.2.1638"		-		Affected