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ESB-2002.679 -- SGI Security Advisory -- Multiple Vulnerabilities in BIND Name Service Daemon

Date: 05 December 2002
References: ESB-2002.637  

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

                   ESB-2002.679 -- SGI Security Advisory
           Multiple Vulnerabilities in BIND Name Service Daemon
                             05 December 2002

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

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

Product:                BIND
Vendor:                 SGI
Operating System:       IRIX prior to 6.5.19
Impact:                 Execute Arbitrary Code/Commands
                        Denial of Service
Access Required:        Remote

Ref:                    ESB-2002.637

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

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______________________________________________________________________________
                          SGI Security Advisory

Title    : Multiple Vulnerabilities in BIND Name Service Daemon
Number   : 20021201-01-P
Date     : December 4, 2002
Reference: CERT CA-2002-31, VU#844360, VU#852283
Reference: CVE CAN-2002-0029, CAN-2002-1219
Reference: ISS X-Force Alert #21469
Reference: SGI BUGS 873320 873381
Fixed in : IRIX 6.5.19 or patch 4881

______________________________________________________________________________

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

The BIND distribution provides Internet domain name service known as DNS.

ISC and CERT have reported several vulnerabilities discovered in
certain versions of BIND distributions.  These vulnerabilities can be
used to perform denial of service attacks and/or to obtain privileged
access remotely.

See the following URLs for additional information:

    http://www.cert.org/advisories/CA-2002-31.html

    http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=21469

    http://www.isc.org/products/BIND/bind-security.html


CERT assigned the following CVE candidates to these issues:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0029
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1219

SGI has investigated the issue and provides the following information for
customer interpretation and possible action.


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

SGI distributes BIND with IRIX 6.5, but it is not installed by default.
It is part of an optional package called eoe.sw.named.

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.

To see if BIND is installed, execute the following command:

% versions eoe.sw.named
I = Installed, R = Removed

   Name                 Date        Description

   I  eoe                  12/12/2001  IRIX Execution Environment, 6.5.14f
   I  eoe.sw               12/12/2001  IRIX Execution Environment Software
   I  eoe.sw.named         12/12/2001  Berkeley Internet Name Domain Server


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


- - --------------------------
- - --- Temporary Solution ---
- - --------------------------
Unfortunately, there are no effective workarounds for this issue.
However, if patch 4725 is applied and configured in a chroot-ed manner,
some of the exposure to the vulnerability can be minimized.

SGI recommends either installing the appropriate patch from the list below
or upgrading to IRIX 6.5.19 when it is released.


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

SGI has provided a patch for these vulnerabilities. Our recommendation is to
upgrade to IRIX 6.5.19 when available, or install the appropriate patch.

   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       yes                       Notes 2 & 3
   IRIX 6.5.12       yes                       Notes 2 & 3
   IRIX 6.5.13       yes           4881        Note 4
   IRIX 6.5.14       yes           4881        Note 4
   IRIX 6.5.15       yes           4881        Note 4
   IRIX 6.5.16       yes           4881        Note 4
   IRIX 6.5.17       yes           4881        Note 4
   IRIX 6.5.18       yes           4881        Note 4
   IRIX 6.5.19        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 6.5.19 when made available.

     4) For maximum security, configure named to run in a chroot jail, per
        the instructions in the named man page and the release notes supplied
        with patch 4881.

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

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

Filename:                 README.patch.4881
Algorithm #1 (sum -r):    37686 10 README.patch.4881
Algorithm #2 (sum):       237 10 README.patch.4881
MD5 checksum:             11F592119F1C01ED790F6A4B1B5AFC20

Filename:                 patchSG0004881
Algorithm #1 (sum -r):    10724 7 patchSG0004881
Algorithm #2 (sum):       40538 7 patchSG0004881
MD5 checksum:             085D00092799D30612A67A672F82D725

Filename:                 patchSG0004881.eoe_man
Algorithm #1 (sum -r):    19317 32 patchSG0004881.eoe_man
Algorithm #2 (sum):       35446 32 patchSG0004881.eoe_man
MD5 checksum:             1953681FE9737B4125D49F4BBBE9F2F5

Filename:                 patchSG0004881.eoe_sw
Algorithm #1 (sum -r):    34290 419 patchSG0004881.eoe_sw
Algorithm #2 (sum):       35569 419 patchSG0004881.eoe_sw
MD5 checksum:             3611DB747CF8C6F6EBA275E9985D64D2

Filename:                 patchSG0004881.idb
Algorithm #1 (sum -r):    58684 2 patchSG0004881.idb
Algorithm #2 (sum):       6637 2 patchSG0004881.idb
MD5 checksum:             F906E691563D21883DDA8B33AD1E2CCA


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

SGI wishes to thank ISC, ISS-XFORCE, CERT, 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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