Stack-based buffer overflow in NETGEAR Routers

1) Stack-based buffer overflow

EUVDB-ID: #VU70116

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

R6220: All versions

R6230: All versions

R6850: All versions

R6260: All versions

R6330: All versions

R6350: All versions

R6020: All versions

R6080: All versions

R6120: All versions

CPE2.3

• 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:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6020:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6080:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6120:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065356/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2021-0347

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

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.