CVE-2021-20862 Information

Description

Improper access control vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior WRC-1167GST2A firmware v1.25 and prior WRC-1167GST2H firmware v1.25 and prior WRC-2533GS2-B firmware v1.52 and prior WRC-2533GS2-W firmware v1.52 and prior WRC-1750GS firmware v1.03 and prior WRC-1750GSV firmware v2.11 and prior WRC-1900GST firmware v1.03 and prior WRC-2533GST firmware v1.03 and prior WRC-2533GSTA firmware v1.03 and prior WRC-2533GST2 firmware v1.25 and prior WRC-2533GST2SP firmware v1.25 and prior WRC-2533GST2-G firmware v1.25 and prior and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent unauthenticated attacker to bypass access restriction and to obtain anti-CSRF tokens and change the product’s settings via unspecified vectors.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Reference

https://jvn.jp/en/vu/JVNVU94527926/index.html https://www.elecom.co.jp/news/security/20211130-01/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

NONE

Base Severity

4.3