Stack-based buffer overflow in NETGEAR Routers

1) Stack-based buffer overflow

EUVDB-ID: #VU69932

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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 local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A local user 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

R6260: before 1.1.0.88

R6220: before 1.1.0.114

R6230: before 1.1.0.114

R6850: before 1.1.0.88

R6330: before 1.1.0.88

R6350: before 1.1.0.88

CPE2.3

• cpe:2.3:h:netgear:r6260:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6220:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6230:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6850:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6330:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6350:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065317/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2022-0005

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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