Detections
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Draytek VigorConnect LFI (CVE-2021-20123)

high Nessus Plugin ID 154966

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Synopsis

The web application running on the remote web server is affected by a local file inclusion vulnerability.

Description

A local file inclusion vulnerability exists in Drayteks VigorConnect due to insufficient validation of user supplied paramaters. An unauthenticated, remote attacker can exploit this, via a specially crafted HTTP GET request, to download arbitrary files with root privileges.

Solution

Upgrade to Draytek VigorConnect version 1.6.1 or later

See Also

http://www.nessus.org/u?d457562c

Plugin Details

Severity: High

ID: 154966

File Name: draytek_vigorconnect_cve-2021-20123.nbin

Version: 1.68

Type: remote

Family: Web Servers

Published: 11/8/2021

Updated: 7/14/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2021-20123

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:draytek:vigorconnect

Required KB Items: installed_sw/Draytek VigorConnect

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/7/2020

Vulnerability Publication Date: 10/15/2020

CISA Known Exploited Vulnerability Due Dates: 9/24/2024

Reference Information

CVE: CVE-2021-20123