Published:2013/03/18  Last Updated:2013/03/18

VxWorks SSH server (IPSSH) denial-of-service (DoS) vulnerability


The SSH server (IPSSH) implementation in VxWorks contains a denial-of-service (DoS) vulnerability.

Products Affected

  • VxWorks versions 6.5 through 6.9


The SSH server (IPSSH) implementation in VxWorks contains a denial-of-service (DoS) vulnerability due to an issue in the processing authentication requests.


Recieiving a specially crafted packet for a public key authentication request may cause the server to hang and SSH access to be unavailable until the next reboot. In addition, arbitrary code may be executed on the server.


Apply a patch
Apply the appropriate patch according to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
Wind River Systems Vulnerable 2013/03/18


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2013.03.18

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the vulnerability can be exploited without an honest user taking any action
  • High
Exploit Complexity little to no expertise and/or luck required to exploit (cross-side scripting).Expected to be the common response
  • High

Description of each analysis measures


Hisashi Kojima and Masahiro Nakada of Fujitsu Laboratories Ltd. 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-2013-0714
JVN iPedia JVNDB-2013-000021