CVE-2021-20119 Auth bypass in Arris SurfBoard SB8200

High 7.1 Published Updated

A logged-in user can bypass safety measures in the password change utility to change the administrator password on Arris SurfBoard SB8200 devices.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-20119?

CVE-2021-20119 is a high-severity authentication bypass vulnerability in Arris SurfBoard SB8200, published on 9 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The password change utility for the Arris SurfBoard SB8200 can have safety measures bypassed that allow any logged-in user to change the administrator password.

Weakness: CWE-863

Which versions are affected by CVE-2021-20119?

It affects 1 product.

Products include Commscope Arris Surfboard Sb8200 Firmware.

How do I fix CVE-2021-20119?

No fix has been published for CVE-2021-20119 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-20119 being exploited?

There is no known exploitation of CVE-2021-20119 in the wild and no public exploit code.

Sources

Also known as GHSA-8jrg-5v7m-fc9w.

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