#VU61592 Improper Authentication in NETGEAR products - CVE-2022-27643

Vulnerability identifier: #VU61592

Vulnerability risk: Low

CVSSv4.0: 1.8 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-27643

CWE-ID: CWE-287

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
D6220
Hardware solutions / Routers for home users
D6400
Hardware solutions / Routers for home users
R7100LG
Hardware solutions / Routers for home users
R6400
Hardware solutions / Routers for home users
R6400v2
Hardware solutions / Routers for home users
R6900P
Hardware solutions / Routers for home users
R7000
Hardware solutions / Routers for home users
R7000P
Hardware solutions / Routers for home users
R8500
Hardware solutions / Routers for home users
RS400
Hardware solutions / Routers for home users
WNDR3400v3
Hardware solutions / Routers for home users
WNR3500Lv2
Hardware solutions / Routers for home users
XR300
Hardware solutions / Routers for home users
D7000v2
Hardware solutions / Routers & switches, VoIP, GSM, etc
R6700v3
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: NETGEAR

Description

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. An attacker with physical access can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

D6220: before 1.0.0.80

D6400: before 1.0.0.114

D7000v2: before 1.0.0.80

R7100LG: before 1.0.0.76

R6400: before 1.0.1.78

R6400v2: before 1.0.4.126

R6700v3: before 1.0.4.126

R6900P: before 1.3.3.148

R7000: before 1.0.11.134

R7000P: before 1.3.3.148

R8500: before 1.0.2.158

RS400: before 1.5.1.86

WNDR3400v3: before 1.0.1.44

WNR3500Lv2: before 1.2.0.72

XR300: before 1.2.0.72

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External links
https://kb.netgear.com/000064720/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0323

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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.