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>>                                                      CERT-NL, 01-Mar-2000 <<
>> All CERT-NL information has been moved to http://cert.surfnet.nl.  Links  <<
>> to CERT-NL information contained in this advisory are therefore outdated. <<
>>                                                                           <<
>> CERT-NL also has stopped the CERT-CC-Mirror service.  Due to this the     <<
>> links to the CERT-CC mirror are obsolete. Visit the CERT-CC site for the  <<
>> complete CERT-CC advisory texts:                     http://www.cert.org  <<
===============================================================================
===============================================================================
Security Advisory                                                       CERT-NL
===============================================================================
Author/Source : Nico de Koo                                 Index  :    S-98-59
Distribution  : World                                       Page   :          1
Classification: External                                    Version:          1
Subject       : SGI: IRIX On-Line Cust. Registration Vuln.  Date   :  30-Sep-98
===============================================================================

By courtesy of Silicon Graphics Inc. we received
information on a vulnerability in the 'IRIX On-Line Customer Registration' 
program in various versions of IRIX

CERT-NL recommends to follow the suggestions in this Advisory.
==============================================================================
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______________________________________________________________________________
                Silicon Graphics Inc. Security Advisory

        Title:   IRIX On-Line Customer Registration Vulnerabilities
        Number:  19980901-01-PX
        Date:    September 29, 1998
______________________________________________________________________________

Silicon Graphics provides this information freely to the SGI user community
for its consideration, interpretation, implementation and use.   Silicon
Graphics recommends that this information be acted upon as soon as possible.

Silicon Graphics provides the information in this Security Advisory on
an "AS-IS" basis only, and disclaims all warranties with respect thereto,
express, implied or otherwise, including, without limitation, any warranty
of merchantability or fitness for a particular purpose.  In no event shall
Silicon Graphics be liable for any loss of profits, loss of business, loss
of data or for any indirect, special, exemplary, incidental or consequential
damages of any kind arising from your use of, failure to use or improper
use of any of the instructions or information in this Security Advisory.
______________________________________________________________________________

- - ------------------------
- - ---- Issue Specifics ---
- - ------------------------

The IRIX On-Line Customer Registration software is used to establish an
information link with Silicon Graphics and submit your End User Registration
form electronically.

Unfortunately, several vulnerabilities were discovered in On-Line Customer
Registration software subsystem which can lead to a root compromise on a
local machine.

Silicon Graphics Inc. has investigated the issue and recommends the
following steps for neutralizing the exposure.  It is HIGHLY RECOMMENDED
that these measures be implemented on ALL vulnerable SGI systems.  This
issue has been corrected in future releases of IRIX.


- - ---------------
- - ---- Impact ---
- - ---------------

The On-Line Customer Registration software is installed by default on
IRIX 6.2 through IRIX 6.5 systems. IRIX 6.5 and newer systems are not
vulnerable to this issue.

On IRIX 6.2, the On-Line Customer Registration software is part of the
whatsnew software subsystem which is installed by default.

On IRIX 6.3 through 6.4, the On-Line Customer Registration software is
part of the Register(1) software subsystem which is installed by default.

A local user account is needed in order to exploit these vulnerabilities.

The vulnerability can lead to a root compromise.

Even if the On-Line Customer Registration software has never been used or
configured, the software is installed by default and the following
information is applicable.

These vulnerabilities have been publicly discussed in Usenet newsgroups
and mailing lists.


- - ---------------------------
- - ---- Temporary Solution ---
- - ---------------------------

Although upgrades are available for this issue, it is realized that
there may be situations where installing the upgrade immediately may
not be possible.

The steps below can be used to remove the root compromise vulnerability
by removing On-Line Customer Registration software subsystem.


     1) Verify you have On-Line Customer Registration software installed.

                % versions -b whatsnew  {IRIX 6.2}
                % versions -b Register  {IRIX 6.3-6.4}

                I  whatsnew  11/17/97  What's New, 6.2
                I  Register  04/30/97  Customer Registration, 1.3


     2) Become the root user on the system.

                % /bin/su -
                Password:
                #


     3) Remove the vulnerable On-Line Customer Registration software subsystem

               # versions remove whatsnew.registration {IRIX 6.2}
               # versions remove Register              {IRIX 6.3-6.4}

                           ************
                           *** NOTE ***
                           ************

                Removing the On-Line Customer Registration software subsystem
                removes the ability to electronically register.



     4) Return to previous user level.

                # exit
                %



- - -----------------
- - ---- Solution ---
- - -----------------


For those customers that do not use the On-Line Customer Registration
software, the software should be removed using the steps outlined in
the "Temporary Solution" section above.

For those customers that use the On-Line Customer Registration software,
the only complete solution is to upgrade the software.



   OS Version     Vulnerable?     Patch #               Other Actions
   ----------     -----------     ---------             -------------

   IRIX 3.x          no
   IRIX 4.x          no
   IRIX 5.0.x        no
   IRIX 5.1.x        no
   IRIX 5.2          no
   IRIX 5.3          no
   IRIX 6.0.x        no
   IRIX 6.1          no
   IRIX 6.2          yes           Register 1.5
   IRIX 6.3          yes           Register 1.5.1
   IRIX 6.4          yes           Register 1.5.2
   IRIX 6.5          no





Patches are available via anonymous FTP and your service/support provider.

The SGI anonymous FTP site is sgigate.sgi.com (204.94.209.1) or its
mirror, ftp.sgi.com.  Security information and patches can be found
in the ~ftp/security and ~ftp/patches directories, respectfully.



                 ##### Patch File Checksums ####

The actual patch will be a tar file containing the following files:

- - From 6.2_register_1.5.tar:

Filename:                 Register
Algorithm #1 (sum -r):    50177 2 Register
Algorithm #2 (sum):       11693 2 Register
MD5 checksum:             CEDD27ED4C5ACC26AEAD3E2716923576

Filename:                 Register.idb
Algorithm #1 (sum -r):    51520 124 Register.idb
Algorithm #2 (sum):       63469 124 Register.idb
MD5 checksum:             D76128C70632340654DB6C9FD1C16F34

Filename:                 Register.man
Algorithm #1 (sum -r):    01410 15 Register.man
Algorithm #2 (sum):       29937 15 Register.man
MD5 checksum:             72A901F2613D1EC3C50DB697D89C1CE5

Filename:                 Register.sw
Algorithm #1 (sum -r):    04384 6021 Register.sw
Algorithm #2 (sum):       36806 6021 Register.sw
MD5 checksum:             80D25EAAF2E7E16903BB713B8F0857BA


- - From 6.3_register_1.5.1.tar:

Filename:                 Register
Algorithm #1 (sum -r):    55121 3 Register
Algorithm #2 (sum):       19777 3 Register
MD5 checksum:             D89BC7F07633FC928F6B396551507CF6

Filename:                 Register.idb
Algorithm #1 (sum -r):    29526 123 Register.idb
Algorithm #2 (sum):       64049 123 Register.idb
MD5 checksum:             5C6471E939D6010262268B817FA0097E

Filename:                 Register.man
Algorithm #1 (sum -r):    46688 15 Register.man
Algorithm #2 (sum):       29936 15 Register.man
MD5 checksum:             D1E157B9ED6222EB075E003BBB66978F

Filename:                 Register.sw
Algorithm #1 (sum -r):    19330 6021 Register.sw
Algorithm #2 (sum):       35658 6021 Register.sw
MD5 checksum:             7912F1F0857446EBC28849FCA34ABC04


- - From 6.4_register_1.5.2.tar

Filename:                 Register
Algorithm #1 (sum -r):    36984 3 Register
Algorithm #2 (sum):       16009 3 Register
MD5 checksum:             CC025CAFDD0DF7D8EACEA723F975351D

Filename:                 Register.idb
Algorithm #1 (sum -r):    61690 123 Register.idb
Algorithm #2 (sum):       63998 123 Register.idb
MD5 checksum:             C86C2A39291E72636F4FABBDF2B62879

Filename:                 Register.man
Algorithm #1 (sum -r):    46688 15 Register.man
Algorithm #2 (sum):       29936 15 Register.man
MD5 checksum:             D1E157B9ED6222EB075E003BBB66978F

Filename:                 Register.sw
Algorithm #1 (sum -r):    03276 6064 Register.sw
Algorithm #2 (sum):       50710 6064 Register.sw
MD5 checksum:             7E7D6B081A8C277193D41BB1A486AE27

- - -------------------------
- - ---- Acknowledgments ---
- - -------------------------

Silicon Graphics wishes to thank the Internet community at large for their
assistance in this matter.


- - ------------------------------------------------------------
- - ---- Silicon Graphics Inc. Security Information/Contacts ---
- - ------------------------------------------------------------

If there are questions about this document, email can be sent to
cse-security-alert@sgi.com.

                      ------oOo------

Silicon Graphics provides security information and patches for
use by the entire SGI community.  This information is freely
available to any person needing the information and is available
via anonymous FTP and the Web.

The primary SGI anonymous FTP site for security information and patches
is sgigate.sgi.com (204.94.209.1).  Security information and patches
are located under the directories ~ftp/security and ~ftp/patches,
respectively. The Silicon Graphics Security Headquarters Web page is
accessible at the URL http://www.sgi.com/Support/security/security.html.

For issues with the patches on the FTP sites, email can be sent to
cse-security-alert@sgi.com.

For assistance obtaining or working with security patches, please
contact your SGI support provider.

                      ------oOo------

Silicon Graphics provides a free security mailing list service
called wiretap and encourages interested parties to self-subscribe
to receive (via email) all SGI Security Advisories when they are
released. Subscribing to the mailing list can be done via the Web
(http://www.sgi.com/Support/security/wiretap.html) or by sending email
to SGI as outlined below.

% mail wiretap-request@sgi.com
subscribe wiretap <YourEmailAddress>
end
^d

In the example above, <YourEmailAddress> is the email address that you
wish the mailing list information sent to.  The word end must be on a
separate line to indicate the end of the body of the message. The
control-d (^d) is used to indicate to the mail program that you are
finished composing the mail message.


                      ------oOo------

Silicon Graphics provides a comprehensive customer World Wide Web site.
This site is located at http://www.sgi.com/Support/security/security.html.

                      ------oOo------

For reporting *NEW* SGI security issues, email can be sent to
security-alert@sgi.com or contact your SGI support provider.  A
support contract is not required for submitting a security report.

______________________________________________________________________________
  This information is provided freely to all interested parties and may
  be redistributed provided that it is not altered in any way, Silicon
  Graphics is appropriately credited and the document retains and
  includes its valid PGP signature.



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==============================================================================
CERT-NL wishes to thank Silicon Graphics Inc. , Inc for bringing this 
information to our attention
==============================================================================
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  http://cert.surfnet.nl/

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===============================================================================

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