CVE-2021-20122 — HIGH (7.2)

Vulnerability 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.

CVSS Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Telus	Prv65B444A-S-Ts Firmware	3.00.20
Telus	Prv65B444A-S-Ts	-

Related Weaknesses (CWE)

CWE-78

References

https://www.tenable.com/security/research/tra-2021-41ExploitThird Party Advisory
https://www.tenable.com/security/research/tra-2021-41ExploitThird Party Advisory

FAQ

What is CVE-2021-20122?

CVE-2021-20122 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 con...

How severe is CVE-2021-20122?

CVE-2021-20122 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20122?

Check the references section above for vendor advisories and patch information. Affected products include: Telus Prv65B444A-S-Ts Firmware, Telus Prv65B444A-S-Ts.