CVE Vulnerability

CVE-2021-20863

OS command injection 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 authenticated attackers to execute an arbitrary OS command with the root privilege via unspecified vectors.

7.7 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 5.1 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.1 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://jvn.jp/en/vu/JVNVU94527926/index.html Third Party Advisory
https://www.elecom.co.jp/news/security/20211130-01/ Vendor Advisory
Configurations

Configuration 1
Information

Published : 2021-12-01 03:15

Updated : 2021-12-02 04:35

NVD link : CVE-2021-20863

Mitre link : CVE-2021-20863

Products Affected

Edwrc-2533gst2 Firmware

Elecom

CWE
CWE-78