What is CVE-2021-20120?

CVE-2021-20120 is a vulnerability in the administration web interface of the Arris Surfboard SB8200 that allows for cross-site request forgery attacks.

How does CVE-2021-20120 affect the Arris Surfboard SB8200?

CVE-2021-20120 allows attackers to make configuration changes on the Arris Surfboard SB8200 without user consent, such as changing the administrative password.

What is the severity of CVE-2021-20120?

The severity of CVE-2021-20120 is rated as high with a CVSS score of 8.8.

Is the Commscope Arris Surfboard SB8200 vulnerable to CVE-2021-20120?

Yes, the Arris Surfboard SB8200 with firmware version ab01.02.053.01_112320_193.0a.nsh is vulnerable to CVE-2021-20120.

How can I fix CVE-2021-20120 on my Arris Surfboard SB8200?

To fix CVE-2021-20120, it is recommended to update the firmware of the Arris Surfboard SB8200 to a version that includes the necessary protections against cross-site request forgery attacks.

Vulnerability/
CVE-2021-20120

high

8.8

CWE

352

21/10/2021

3/8/2024

CVE-2021-20120: CSRF

First published: Thu Oct 21 2021(Updated: )

The administration web interface for the Arris Surfboard SB8200 lacks any protections against cross-site request forgery attacks. This means that an attacker could make configuration changes (such as changing the administrative password) without the consent of the user.

Credit: vulnreport@tenable.com

Affected Software	Affected Version	How to fix
Commscope Arris Surfboard Sb8200 Firmware	=ab01.02.053.01_112320_193.0a.nsh
Commscope Arris Surfboard Sb8200

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Reference Links

https://www.tenable.com/security/research/tra-2021-45

Frequently Asked Questions

What is CVE-2021-20120?
CVE-2021-20120 is a vulnerability in the administration web interface of the Arris Surfboard SB8200 that allows for cross-site request forgery attacks.
How does CVE-2021-20120 affect the Arris Surfboard SB8200?
CVE-2021-20120 allows attackers to make configuration changes on the Arris Surfboard SB8200 without user consent, such as changing the administrative password.
What is the severity of CVE-2021-20120?
The severity of CVE-2021-20120 is rated as high with a CVSS score of 8.8.
Is the Commscope Arris Surfboard SB8200 vulnerable to CVE-2021-20120?
Yes, the Arris Surfboard SB8200 with firmware version ab01.02.053.01_112320_193.0a.nsh is vulnerable to CVE-2021-20120.
How can I fix CVE-2021-20120 on my Arris Surfboard SB8200?
To fix CVE-2021-20120, it is recommended to update the firmware of the Arris Surfboard SB8200 to a version that includes the necessary protections against cross-site request forgery attacks.

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vendor/commscope
canonical/commscope arris surfboard sb8200 firmware
version/commscope arris surfboard sb8200 firmware/ab01.02.053.01_112320_193.0a.nsh
canonical/commscope arris surfboard sb8200

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