#VU70034 Command Injection in R6400v2 and R6700v3

Vulnerability identifier: #VU70034

Vulnerability risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-77

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
R6400v2
Hardware solutions / Routers for home users
R6700v3
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: NETGEAR

Description

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

The vulnerability exists due to improper input validation. An attacker with physical access can pass specially crafted data to the application and execute arbitrary commands on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

R6400v2: before 1.0.4.122

R6700v3: before 1.0.4.122

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External links
https://kb.netgear.com/000065323/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-PSV-2021-0263

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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