#VU51403 Improper access control in JGS516PE and GS116Ev2 - CVE-2020-35226

Vulnerability identifier: #VU51403

Vulnerability risk: Low

CVSSv4.0: 5 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-35226

CWE-ID: CWE-284

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
JGS516PE
Hardware solutions / Routers & switches, VoIP, GSM, etc
GS116Ev2
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: NETGEAR

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the DCHP configuration feature. A remote attacker on the local network can modify the switch DHCP configuration by sending the corresponding write request command.

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

Vulnerable software versions

JGS516PE: 2.6.0.43

GS116Ev2: 2.6.0.43

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External links
https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/

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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).

Is there known malware, which exploits this vulnerability?

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