Buffer overflow in NETGEAR Routers

1) Buffer overflow

EUVDB-ID: #VU76456

Risk: Low

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-31070

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to a boundary error. A local administrator can trigger memory corruption and execute arbitrary code on the target system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

R6700: All versions

R6900: All versions

R7000: All versions

R7100LG: All versions

R7300DST: All versions

R7900: All versions

R8000: All versions

R8300: All versions

R8500: All versions

CPE2.3

• cpe:2.3:h:netgear:r6700:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r6900:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r7000:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r7100lg:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r7300dst:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r7900:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r8000:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r8300:*:*:*:*:*:*:*:*
• cpe:2.3:h:netgear:r8500:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065667/Security-Advisory-for-Post-authentication-Buffer-Overflow-on-Some-Routers-PSV-2023-0068

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. However, proof of concept for this vulnerability is available.