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CVE-2021-20122 Details

Description

The Telus Wi-Fi Hub (PRV65B444A-S-TS) with firmware version 3.00.20 is affected by an authenticated command injection vulnerability in multiple parameters passed to tr69_cmd.cgi. A remote attacker connected to the router's LAN and authenticated with a super user account, or using a bypass authentication vulnerability like CVE-2021-20090 could leverage this issue to run commands or gain a shell as root on the target device.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.tenable.com/security/research/tra-2021-41	CVE	ExploitThird Party Advisory
https://www.tenable.com/security/research/tra-2021-41	[email protected]	ExploitThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	[email protected]

Affected Products

Product	Versions
telus prv65b444a-s-ts firmware	3.00.20
CPE cpe:2.3:o:telus:prv65b444a-s-ts_firmware:3.00.20:::::::* Remediation No remediation found in references.
telus prv65b444a-s-ts	All versions
CPE cpe:2.3:h:telus:prv65b444a-s-ts:-:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jun 28, 2022	CWE Remap	[email protected]
Oct 18, 2021	Initial Analysis	[email protected]