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Home : Advisories : Array Services default configuration

Title: Array Services default configuration
Released by: CERT
Date: 19th July 1999
Printable version: Click here

Hash: SHA1

CERT Advisory CA-99-09 Array Services default configuration

   Originally released: July 19, 1999

   Source: CERT/CC


Systems Affected

     * IRIX systems running the Array Services daemon

     * UNICOS systems running the Array Services daemon


I. Description

   A vulnerability has been discovered in the default configuration of

   the Array Services daemon, arrayd. Array Services are used to manage a

   cluster of systems. The default configuration file, arrayd.auth,

   disables authentication and does not provide adequate protection for

   systems connected to an untrusted network.


   SGI has published the following document describing the vulnerability

   and solutions:




II. Impact

   On systems installed with the default configuration, remote and local

   users can execute arbitrary commands as root.


III. Solution

   Use "SIMPLE" authentication


   Reconfigure arrayd to use "SIMPLE" authentication. For more

   information about reconfiguring arrayd, please see the SGI security



   Disable the arrayd daemon


   If you do not need the capabilities provided by the arrayd daemon, you

   may wish to disable the daemon.



   The CERT Coordination Center would like to thank Yuri Volobuev and the

   SGI Security Team for their assistance in preparing this advisory.



   This document is available from:




CERT/CC Contact Information

   Email: cert@cert.org

          Phone: +1 412-268-7090 (24-hour hotline)

          Fax: +1 412-268-6989

          Postal address:

          CERT Coordination Center

          Software Engineering Institute

          Carnegie Mellon University

          Pittsburgh PA 15213-3890



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   Copyright 1999 Carnegie Mellon University.

   Conditions for use, disclaimers, and sponsorship information can be

   found in http://www.cert.org/legal_stuff.html.


   * "CERT" and "CERT Coordination Center" are registered in the U.S.

   Patent and Trademark Office




   Any material furnished by Carnegie Mellon University and the Software

   Engineering Institute is furnished on an "as is" basis. Carnegie

   Mellon University makes no warranties of any kind, either expressed or

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   results obtained from use of the material. Carnegie Mellon University

   does not make any warranty of any kind with respect to freedom from

   patent, trademark, or copyright infringement.


   Revision History

   July 19, 1999:  Initial release


Version: PGP for Personal Privacy 5.0

Charset: noconv





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