Denial of service in NETGEAR Routers

1) Input validation error

EUVDB-ID: #VU70063

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

R6020: before 1.0.0.54

R6220: before 1.1.0.114

R6230: before 1.1.0.114

R6850: before 1.1.0.88

R6260: before 1.1.0.88

R6330: before 1.1.0.88

R6350: before 1.1.0.88

CPE2.3

• cpe:2.3:h:netgear:r6020:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6220:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6230:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6850:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6260:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6330:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6350:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065383/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2022-0001

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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