Denial of service in NETGEAR WiFi Systems

1) Input validation error

EUVDB-ID: #VU70571

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/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 remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote administrator 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

RBK852: before 4.6.7.13

RBR850: before 4.6.7.13

RBS850: before 4.6.7.13

AX6000: before 4.6.3.9

RBK752: before 4.6.7.13

RBR750: before 4.6.7.13

RBS750: before 4.6.7.13

CPE2.3

• cpe:2.3:h:netgear:rbk852:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbr850:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbs850:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:ax6000:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbk752:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbr750:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:rbs750:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065478/Security-Advisory-for-Denial-of-Service-on-Some-WiFi-Systems-PSV-2020-0288

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

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.

Is there known malware, which exploits this vulnerability?

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