Published:2014/06/04  Last Updated:2014/06/04

CN8000 vulnerable to denial-of-service (DoS)


CN8000 provided by ATEN contains a denial-of-service (DoS) vulnerability.

Products Affected

  • CN8000 V1.6.154 and earlier


CN8000 provided by ATEN is a remote access unit used to connect a keyboard, mouse and monitor to two or more computers in a remote location. CN8000 contains a denial-of-service (DoS) vulnerability.


A remote attacker may be able to cause a denial-of-service (DoS).


Update the Firmware
Update to the latest version of firmware according to the information provided by the developer.

Vendor Status

Vendor Link
ATEN JAPAN Co., Ltd CN8000, ATEN IP KVM switch


JPCERT/CC Addendum

This JVN publication was delayed to 2014/06/04 after the developer fix was developed. From the fiscal year 2011, JPCERT/CC is using a new vendor coordination procedure. This new procedure came from the recommendation of the fiscal year 2010 "Study Group on Information System Vulnerability Handling" aimed at more timely JVN publications.

Vulnerability Analysis by JPCERT/CC

Analyzed on 2014.06.04 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions or extenuating circumstances do not exist.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is no impact to the confidentiality of the system.
Integrity Impact(I) None (N) Partial (P) Complete (C) There is no impact to the integrity of the system.
Availability Impact(A) None (N) Partial (P) Complete (C) There is a total shutdown of the affected resource.

Base Score:7.8


Testuya Nagata of Fourteenforty Research Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2014-1997
JVN iPedia JVNDB-2014-000046