Vulnerability identifier: #VU49992

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-20648

CWE-ID: CWE-78

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
WRC-300FEBK-S
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: ELECOM CO. ,LTD.

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A remote administrator on the local network can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

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

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

Vulnerable software versions

WRC-300FEBK-S: All versions

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External links
http://jvn.jp/en/jp/JVN47580234/index.html
http://www.elecom.co.jp/news/security/20210126-01/

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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).

Is there known malware, which exploits this vulnerability?

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