#VU73748 Command Injection in NETGEAR products

Vulnerability identifier: #VU73748

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-77

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
CBR750
Hardware solutions / Routers & switches, VoIP, GSM, etc
EAX20
Hardware solutions / Routers & switches, VoIP, GSM, etc
EAX80
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3700
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX3800
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX6120
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX6130
Hardware solutions / Routers & switches, VoIP, GSM, etc
EX7000
Hardware solutions / Routers & switches, VoIP, GSM, etc
LAX20
Hardware solutions / Routers & switches, VoIP, GSM, etc
MK62
Hardware solutions / Routers & switches, VoIP, GSM, etc
MR60
Hardware solutions / Routers & switches, VoIP, GSM, etc
MS60
Hardware solutions / Routers & switches, VoIP, GSM, etc
MK83
Hardware solutions / Routers & switches, VoIP, GSM, etc
MR80
Hardware solutions / Routers & switches, VoIP, GSM, etc
MS80
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBW30
Hardware solutions / Routers & switches, VoIP, GSM, etc
R8000P
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX15
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX20
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX200
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX45
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX50
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX43
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX40v2
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX38v2
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX35v2
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX75
Hardware solutions / Routers & switches, VoIP, GSM, etc
RAX80
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBK752
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBR750
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBS750
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBK852
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBR850
Hardware solutions / Routers & switches, VoIP, GSM, etc
RBS850
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6400
Hardware solutions / Routers for home users
R6400v2
Hardware solutions / Routers for home users
R7000
Hardware solutions / Routers for home users
R7000P
Hardware solutions / Routers for home users
RS400
Hardware solutions / Routers for home users
XR1000
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. A remote unauthenticated attacker on the local network 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

CBR750: before 4.6.14.4

EAX20: before 1.0.1.62

EAX80: before 1.0.1.70

EX3700: before 1.0.0.94

EX3800: before 1.0.0.94

EX6120: before 1.0.0.64

EX6130: before 1.0.0.44

EX7000: before 1.0.1.106

LAX20: before 1.1.6.28

MK62: before 1.1.6.122

MR60: before 1.1.6.122

MS60: before 1.1.6.122

MK83: before 1.1.6.14

MR80: before 1.1.6.14

MS80: before 1.1.6.14

RBW30: before 2.6.2.6

R6400: before 1.0.1.74

R6400v2: before 1.0.4.118

R7000: before 1.0.11.126

R7000P: before 1.3.3.140

R8000P: before 1.4.2.84

RAX15: before 1.0.3.96

RAX20: before 1.0.3.96

RAX200: before 1.0.5.126

RAX45: before 1.0.3.96

RAX50: before 1.0.3.96

RAX43: before 1.0.3.96

RAX40v2: before 1.0.3.96

RAX38v2: before 1.0.3.96

RAX35v2: before 1.0.3.96

RAX75: before 1.0.5.126

RAX80: before 1.0.5.126

RBK752: before 4.6.7.13

RBR750: before 4.6.7.13

RBS750: before 4.6.7.13

RBK852: before 4.6.7.13

RBR850: before 4.6.7.13

RBS850: before 4.6.7.13

RS400: before 1.5.1.80

XR1000: before 1.0.0.64

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External links
https://kb.netgear.com/000065572/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Router-and-Extenders-PSV-2021-0076

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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.