#VU57617 Cross-site request forgery in Arris Surfboard SB8200 - CVE-2021-20120

Vulnerability identifier: #VU57617

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-20120

CWE-ID: CWE-352

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Arris Surfboard SB8200
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: ARRIS International Limited

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker on the local network can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Arris Surfboard SB8200: AB01.02.053.01_112320_193.0A.NSH

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

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.