CVE-2021-38693

Path Traversal in thttpd

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A path traversal vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, QTS, QVR Pro Appliance. If exploited, this vulnerability allows attackers to read the contents of unexpected files and expose sensitive data. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, QTS, QVR Pro Appliance: 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 salto de ruta que afecta a los dispositivos de QNAP que ejecutan QuTScloud, QuTS hero, QTS, QVR Pro Appliance. Si es explotada, esta vulnerabilidad permite a atacantes leer el contenido de archivos no esperados y exponer datos confidenciales. Ya hemos corregido esta vulnerabilidad en las siguientes versiones de QuTScloud, QuTS hero, QTS, QVR Pro Appliance: 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: Giles, Guido and Simas, Iury from Thomson Reuters

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-13 CVE Reserved
2022-05-05 CVE Published
2023-11-26 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')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.qnap.com/en/security-advisory/qsa-22-13	2022-05-13

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"				< 4.5.4.1991 Search vendor "Qnap" for product "Qts" and version " < 4.5.4.1991"		-		Affected
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"		Quts Hero Search vendor "Qnap" for product "Quts Hero"				>= h5.0.0.1772 < h5.0.0.1949 Search vendor "Qnap" for product "Quts Hero" and version " >= h5.0.0.1772 < h5.0.0.1949"		-		Affected
Qnap Search vendor "Qnap"		Qutscloud Search vendor "Qnap" for product "Qutscloud"				< c5.0.1.1949 Search vendor "Qnap" for product "Qutscloud" and version " < c5.0.1.1949"		-		Affected