CVE-2021-20124

Draytek VigorConnect Path Traversal Vulnerability

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*SSVC

Descriptions

A local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 in the file download functionality of the WebServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.

Se presenta una vulnerabilidad de inclusión de archivos locales en Draytek VigorConnect versión 1.6.0-B3, en la funcionalidad file download del endpoint WebServlet. Un atacante no autenticado podría aprovechar esta vulnerabilidad para descargar archivos arbitrarios desde el sistema operativo subyacente con privilegios de root

Draytek VigorConnect contains a path traversal vulnerability in the file download functionality of the WebServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-10-13 CVE Published
2024-09-03 CVE Updated
2024-09-03 Exploited in Wild
2024-09-03 First Exploit
2024-09-04 EPSS Updated
2024-09-24 KEV Due Date

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://www.tenable.com/security/research/tra-2021-42	2024-09-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Draytek Search vendor "Draytek"		Vigorconnect Search vendor "Draytek" for product "Vigorconnect"				1.6.0 Search vendor "Draytek" for product "Vigorconnect" and version "1.6.0"		beta3		Affected