Denial of service in NETGEAR Routers and Extenders



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-121
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 CBR750
Hardware solutions / Routers & switches, VoIP, GSM, etc

EX7000
Hardware solutions / Routers & switches, VoIP, GSM, etc

EX7500
Hardware solutions / Routers & switches, VoIP, GSM, etc

R7960P
Hardware solutions / Routers & switches, VoIP, GSM, etc

R8000P
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor NETGEAR

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU73747

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-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error. A remote administrator on the local network can trigger stack-based buffer overflow and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CBR750: before 4.6.14.4

EX7000: before 1.0.1.104

EX7500: before 1.0.0.74

R7960P: before 1.4.2.84

R8000P: before 1.4.2.84

CPE2.3 External links

https://kb.netgear.com/000065570/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Extenders-PSV-2020-0482


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.



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