Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2001.441 -- Sun Security Bulletin #209
rpc.yppasswdd
23 October 2001
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: rpc.yppasswdd
Vendor: Sun Microsystems
Operating System: Solaris/SunOS
Platform: Sparc
i386
Impact: Root Compromise
Access Required: Remote
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
________________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00209
Date: October 22, 2001
Cross-Ref: CERT Vulnerability Note VU#327281
Title: rpc.yppasswdd
________________________________________________________________________________
The information contained in this Security Bulletin is provided "AS IS."
Sun makes no warranties of any kind whatsoever with respect to the information
contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS,
REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW.
IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE,
PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL
OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY
ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN
THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES.
If any of the above provisions are held to be in violation of applicable law,
void, or unenforceable in any jurisdiction, then such provisions are waived
to the extent necessary for this disclaimer to be otherwise enforceable in
such jurisdiction.
________________________________________________________________________________
1. Bulletins Topics
Sun announces the release of patches for Solaris(tm) 8, 7, and
2.6 (SunOS(tm) 5.8, 5.7, and 5.6) which relate to a buffer overflow
vulnerability in rpc.yppasswdd.
Sun recommends that you install the patches listed in section 4
immediately on NIS master servers running SunOS 5.8, 5.7, and 5.6.
2. Who is Affected
Vulnerable: SunOS 5.8, 5.8_x86, 5.7, 5.7_x86, 5.6,
and 5.6_x86
Not vulnerable: SunOS 5.5.1, 5.5.1_x86 and earlier
SunOS versions
3. Understanding the Vulnerability
The rpc.yppasswdd daemon runs on all master server machines that are
set up to use NIS. The rpc.yppasswdd daemon handles password change
requests from yppasswd(1). A buffer overflow vulnerability has been
discovered in rpc.yppasswd which may be exploited by a local or a
remote attacker to gain root access on the NIS master server system.
CERT Vulnerability Note VU#327281 is available from:
http://www.kb.cert.org/vuls/id/327281
4. List of Patches
The following patches are available in relation to the above problems.
OS Version Patch ID
__________ _________
SunOS 5.8 111596-02
SunOS 5.8_x86 111597-02
SunOS 5.7 111590-02
SunOS 5.7_x86 111591-02
SunOS 5.6 106303-03
SunOS 5.6_x86 106304-03
_______________________________________________________________________________
APPENDICES
A. Patches listed in this bulletin are available to all Sun customers at:
http://sunsolve.sun.com/securitypatch
B. Checksums for the patches listed in this bulletin are available at:
ftp://sunsolve.sun.com/pub/patches/CHECKSUMS
C. Sun security bulletins are available at:
http://sunsolve.sun.com/security
D. Sun Security Coordination Team's PGP key is available at:
http://sunsolve.sun.com/pgpkey.txt
E. To report or inquire about a security problem with Sun software, contact
one or more of the following:
- Your local Sun answer centers
- Your representative computer security response team, such as CERT
- Sun Security Coordination Team. Send email to:
security-alert@sun.com
F. To receive information or subscribe to our CWS (Customer Warning System)
mailing list, send email to:
security-alert@sun.com
with a subject line (not body) containing one of the following commands:
Command Information Returned/Action Taken
_______ _________________________________
help An explanation of how to get information
key Sun Security Coordination Team's PGP key
list A list of current security topics
query [topic] The email is treated as an inquiry and is forwarded to
the Security Coordination Team
report [topic] The email is treated as a security report and is
forwarded to the Security Coordination Team. Please
encrypt sensitive mail using Sun Security Coordination
Team's PGP key
send topic A short status summary or bulletin. For example, to
retrieve a Security Bulletin #00138, supply the
following in the subject line (not body):
send #138
subscribe Sender is added to our mailing list. To subscribe,
supply the following in the subject line (not body):
subscribe cws your-email-address
Note that your-email-address should be substituted
by your email address.
unsubscribe Sender is removed from the CWS mailing list.
________________________________________________________________________________
Copyright 2001 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries. This
Security Bulletin may be reproduced and distributed, provided that this
Security Bulletin is not modified in any way and is attributed to
Sun Microsystems, Inc. and provided that such reproduction and distribution
is performed for non-commercial purposes.
- -----BEGIN PGP SIGNATURE-----
Version: 2.6.2
iQCVAwUBO9SR0bdzzzOFBFjJAQHFgAQAim1hyrrXvPgUzsaz7DKRgpMPl0SmqSuD
1wBs+SWfcLUqLb+hR+ldCBYy4Lo64KcTtfZAXGO2XlIbVBULnX71WwZXeyIp7ror
WNa0lmTW092xxlcSzZHMl+TKcc93RsFeY/fqxcX1i369MB0SPhrVYhPXhk38q9W+
Wv3xf3mUsmU=
=nQ5M
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/Information/advisories.html
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key
iQCVAwUBO9Vawih9+71yA2DNAQHZ2QP/drnqMBc6lR6X/40/+KtsgYLCT2AbSM8o
CbqmngmhZ7YG5m2KmFZUJP+sOtBUQYGdimA16bO3oO2/Tn5Kf7JCkxRkQKDi/ppY
za4ndCB659ggNlMQ+lN7dBKVFqSpKx1nXs5w1At30veOpEBkPhWzj6l3onqvayrQ
KIrkgdbecQA=
=b5ui
-----END PGP SIGNATURE-----