Denial of service in NETGEAR Routers



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-119
Exploitation vector Local network
Public exploit N/A
Vulnerable software
CBR40
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

RBW30
Hardware solutions / Routers & switches, VoIP, GSM, etc

R6700v3
Hardware solutions / Routers & switches, VoIP, GSM, etc

RAX200
Hardware solutions / Routers & switches, VoIP, GSM, etc

RAX75
Hardware solutions / Routers & switches, VoIP, GSM, etc

RAX80
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

Vendor NETGEAR

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU73746

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/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-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error. A remote attacker on the local network can trigger memory corruption and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CBR40: before 2.5.0.24

LAX20: before 1.1.6.34

MK62: before 1.1.6.122

MR60: before 1.1.6.122

MS60: before 1.1.6.122

RBW30: before 2.6.2.6

R6400: before 1.0.1.70

R6400v2: before 1.0.4.118

R6700v3: before 1.0.4.118

R7000: before 1.0.11.130

R7000P: before 1.3.3.148

RAX200: before 1.0.4.120

RAX75: before 1.0.4.120

RAX80: before 1.0.4.120

RS400: before 1.5.1.86

CPE2.3 External links

https://kb.netgear.com/000065571/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2020-0578


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).

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.



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