OS Command Injection in ELECOM CO. ,LTD. products - CVE-2021-20859

Vulnerability identifier: #VU58442

CSH Severity: Medium

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

CVE-ID: CVE-2021-20859

CWE-ID: CWE-78

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
WRC-1167GST2
WRC-1167GST2A
WRC-1167GST2H
WRC-2533GS2-B
WRC-2533GS2-W
WRC-1750GS
WRC-1750GSV
WRC-1900GST
WRC-2533GST
WRC-2533GSTA
WRC-2533GST2
WRC-2533GST2SP
WRC-2533GST2-G
EDWRC-2533GST2

Software vendor:
ELECOM CO. ,LTD.

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

The vulnerability exists due to improper input validation. A remote authenticated attacker 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.

Install updates from vendor's website.

• https://jvn.jp/en/jp/JVN88993473/index.html
• https://www.elecom.co.jp/news/security/20211130-01/