Vulnerability identifier: #VU59135

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-20173

CWE-ID: CWE-77

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
R6700
Hardware solutions / Routers for home users

Vendor: NETGEAR

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in update functionality. A remote authenticated attacker on the local network can trigger a system update check via the SOAP interface and execute arbitrary commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

R6700: 1.0.4.120

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External links
http://www.tenable.com/security/research/tra-2021-57

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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