Improper access control in ELECOM CO. ,LTD. products - CVE-2021-20861

Vulnerability identifier: #VU58444

CSH Severity: Medium

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

CVE-ID: CVE-2021-20861

CWE-ID: CWE-284

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 gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the management screen. A remote attacker on the local network can bypass implemented security restrictions and gain unauthorized access to the application.

Install updates from vendor's website.

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