Denial of service in NETGEAR Routers

1) Input validation error

EUVDB-ID: #VU64835

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker on the local network 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

R7000P: before 1.3.3.148

R6260: before 1.1.0.78

R6850: before 1.1.0.78

R6350: before 1.1.0.78

R6330: before 1.1.0.78

R6400v2: before 1.0.4.122

R6700v3: before 1.0.4.122

R7000: before 1.0.11.130

RAX80: before 1.0.5.126

RAX75: before 1.0.5.126

RAX200: before 1.0.5.126

R6900P: before 1.3.3.148

External links

http://kb.netgear.com/000065028/Security-Advisory-for-Denial-of-Service-on-Some-Routers-PSV-2020-0329

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.