Authenticated command executioin in several NETGEAR routers

1) OS Command Injection

EUVDB-ID: #VU70578

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

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 send specially crafted data to the application and execute arbitrary OS commands on the device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MK62: before 1.1.7.132

MR60: before 1.1.7.132

MS60: before 1.1.7.132

RAX15: before 1.0.2.82

RAX20: before 1.0.2.82

RAX200: before 1.0.3.106

RAX75: before 1.0.3.106

RAX80: before 1.0.3.106

RBK752: before 3.2.16.6

RBR750: before 3.2.16.6

RBS750: before 3.2.16.6

RBK852: before 3.2.16.6

RBR850: before 3.2.16.6

RBS850: before 3.2.16.6

RAX45: before 1.0.2.66

RAX50: before 1.0.2.66

R7000: before 1.0.2.66

R8000: before 1.0.4.84

R6900P: before 1.3.3.152

R7000P: before 1.3.3.152

R8000P: before 1.4.4.94

R7960P: before 1.4.4.94

External links

http://kb.netgear.com/000065484/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0249

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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