Draytek VigorConnect LFI (CVE-2021-20123)

high Nessus Plugin ID 154966
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The web application running on the remote web server is affected by a local file inclusion vulnerability.


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.


Upgrade to Draytek VigorConnect version 1.6.1 or later

See Also


Plugin Details

Severity: High

ID: 154966

File Name: draytek_vigorconnect_cve-2021-20123.nbin

Version: 1.4

Type: remote

Family: Web Servers

Published: 11/8/2021

Updated: 12/20/2021

Dependencies: draytek_vigorconnect.nbin

Risk Information

CVSS Score Source: CVE-2021-20123


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:draytek:vigorconnect:*:*:*:*:*:*:*:*

Required KB Items: installed_sw/Draytek VigorConnect

Exploit Ease: No known exploits are available

Patch Publication Date: 10/7/2020

Vulnerability Publication Date: 10/15/2020

Reference Information

CVE: CVE-2021-20123