Authenticated command executioin in NETGEAR routers

1) OS Command Injection

EUVDB-ID: #VU70576

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the device.

The vulnerability exists due to improper input validation. A remote authenticated user can pass specially crafted data to the application and execute arbitrary OS commands on the target device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RBK852: before 3.2.17.12

RBR850: before 3.2.17.12

RBS850: before 3.2.17.12

RAX200: before 1.0.4.120

RAX75: before 1.0.4.120

RAX80: before 1.0.4.120

R7960P: before 1.4.4.94

R8000P: before 1.4.4.94

CPE2.3

• cpe:2.3:h:netgear:rbk852:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbr850:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbs850:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rax200:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rax75:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rax80:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r7960p:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r8000p:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065477/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0565

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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