OS Command Injection Vulnerability in ELECOM Routers
CVE-2021-20863

8HIGH

Key Information:

Vendor
Elecom Co.,ltd.
Status
Elecom Routers
Vendor
CVE Published:
1 December 2021

Summary

An OS command injection vulnerability exists in specific firmware versions of ELECOM routers. This issue allows authenticated attackers located on the network to execute arbitrary operating system commands with root privileges through various unspecified methods. This presents significant security risks, as malicious actors could manipulate the router's operation or gain control over connected systems. Users are strongly encouraged to update to the latest firmware versions to mitigate this vulnerability.

Affected Version(s)

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)

References

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

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.