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ESB-2003.0004 -- SGI Security Advisory -- fam Vulnerability Update

Date: 06 January 2003
References: ESB-2002.446  ESB-2002.475  

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                  ESB-2003.0004 -- SGI Security Advisory
                         fam Vulnerability Update
                              06 January 2003

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                fam
Vendor:                 SGI
Operating System:       IRIX 6.5.10 and prior
Impact:                 Access Privileged Data
Access Required:        Remote

Ref:                    ESB-2002.446
                        ESB-2002.475

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________
                          SGI Security Advisory

Title    : fam Vulnerability Update
Number   : 20000301-03-I
Date     : January 3, 2002
Reference: SGI Security Advisory 20000301-02-I
Reference: CVE CAN-2002-0875
Reference: Debian Advisory DSA-154
Reference: Debian Bug ID 148853
Reference: FreeBSD Advisory SN-02:05
Reference: BUGTRAQ ID 5487
Reference: SGI OSS Bug ID 151
Reference: SGI BUGS 852504 852669
Fixed in : IRIX 6.5.11 and higher
______________________________________________________________________________

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

This is a followup to SGI Security Bulletin 20000301-02-I.

The fam daemon is an RPC server that tracks changes to the filesystem.
It is available on IRIX and as open source from http://oss.sgi.com/

It has been reported that a vulnerability has been discovered in fam which
allows an attacker to learn the names of files and directories on IRIX
versions prior to 6.5.11.

SGI 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.

These issues have been corrected in future releases of IRIX.

Please see the following websites for more details:
http://oss.sgi.com/bugzilla/show_bug.cgi?id=151
http://www.debian.org/security/2002/dsa-154
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=148853
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SN-02:05.asc

BUGTRAQ incorrectly states that IRIX 6.5.15-6.5.17 are vulnerable:
http://online.securityfocus.com/bid/5487

This vulnerability was assigned the following CVE candidate:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0875


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

The /usr/etc/fam binary is installed by default on IRIX 6.5 systems
as part of eoe.sw.base.

To determine the version of IRIX you are running, execute the following
command:

  # uname -R

That will return a result similar to the following:

  # 6.5 6.5.16f

The first number ("6.5") is the release name, the second ("6.5.16f" in this
case) is the extended release name.  The extended release name is the
"version" we refer to throughout this document.


- - ----------------------------
- - --- Temporary Workaround ---
- - ----------------------------

If you want to run fam, there is no effective workaround available for
these problems.  SGI recommends upgrading to IRIX 6.5.11 or later.


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

SGI has not provided patches for these vulnerabilities. Our recommendation
is to upgrade to IRIX 6.5.11 or later.

   OS Version     Vulnerable?     Patch #      Other Actions
   ----------     -----------     -------      -------------
   IRIX 3.x        unknown                     Note 1
   IRIX 4.x        unknown                     Note 1
   IRIX 5.x        unknown                     Note 1
   IRIX 6.0.x      unknown                     Note 1
   IRIX 6.1        unknown                     Note 1
   IRIX 6.2        unknown                     Note 1
   IRIX 6.3        unknown                     Note 1
   IRIX 6.4        unknown                     Note 1
   IRIX 6.5          yes                       Notes 2 & 3
   IRIX 6.5.1        yes                       Notes 2 & 3
   IRIX 6.5.2        yes                       Notes 2 & 3
   IRIX 6.5.3        yes                       Notes 2 & 3
   IRIX 6.5.4        yes                       Notes 2 & 3
   IRIX 6.5.5        yes                       Notes 2 & 3
   IRIX 6.5.6        yes                       Notes 2 & 3
   IRIX 6.5.7        yes                       Notes 2 & 3
   IRIX 6.5.8        yes                       Notes 2 & 3
   IRIX 6.5.9        yes                       Notes 2 & 3
   IRIX 6.5.10       yes                       Notes 2 & 3
   IRIX 6.5.11       no
   IRIX 6.5.12       no
   IRIX 6.5.13       no
   IRIX 6.5.14       no
   IRIX 6.5.15       no
   IRIX 6.5.16       no
   IRIX 6.5.17       no
   IRIX 6.5.18       no

   NOTES

     1) This version of the IRIX operating has been retired. Upgrade to an
        actively supported IRIX operating system.  See
        http://support.sgi.com/irix/news/index.html#policy for more
        information.

     2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact your
        SGI Support Provider or URL: http://support.sgi.com/irix/swupdates/

     3) Upgrade to IRIX 6.5.16m or 6.5.16f.


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

SGI wishes to thank FIRST and the users of the Internet Community at large
for their assistance in this matter.


- - -------------
- - --- Links ---
- - -------------

SGI Security Advisories can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/advisories/

SGI Security Patches can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/patches/

SGI patches for IRIX can be found at the following patch servers:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/

SGI freeware updates for IRIX can be found at:
http://freeware.sgi.com/

SGI fixes for SGI open sourced code can be found on:
http://oss.sgi.com/projects/

SGI patches and RPMs for Linux can be found at:
http://support.sgi.com/linux/ or
http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/

SGI patches for Windows NT or 2000 can be found at:
http://support.sgi.com/nt/

IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/

IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/colls/patches/tools/relstream/index.html

IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/irix/swupdates/

The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com (216.32.174.211).  Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/

For security and patch management reasons, ftp.sgi.com (mirrors
patches.sgi.com security FTP repository) lags behind and does not do a
real-time update.


- - -----------------------------------------
- - --- SGI Security Information/Contacts ---
- - -----------------------------------------

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

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

SGI 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 advisories and patches is
patches.sgi.com (216.32.174.211).  Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/

The SGI Security Headquarters Web page is accessible at the URL:
http://www.sgi.com/support/security/

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

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

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

SGI 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 such as zedwatch@sgi.com >
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------

SGI provides a comprehensive customer World Wide Web site. This site is
located at http://www.sgi.com/support/security/ .

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

If there are general security questions on SGI systems, email can be sent to
security-info@sgi.com.

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, SGI is appropriately credited and the document retains and
      includes its valid PGP signature.

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