Date: 26 October 2000
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AUSCERT External Security Bulletin Redistribution
ESB-2000.307 -- Security Bulletin #00198
Browser Certificates
26 October 2000
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AusCERT Security Bulletin Summary
---------------------------------
Product: Browser Certificates
Vendor: Sun Microsystems
Impact: Reduced Security
Access Required: Remote
At the time of this release, this Sun security bulletin had a bad
signature. AusCERT has verified the contents of the bulletin received
from Sun with a bulletin received from CERT/CC and a version downloaded
from sunsolve:
http://sunsolve.Sun.COM/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/198&type=0&nav=sec.sba
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________________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00198
Date: October 24, 2000
Cross-Ref:
Title: Browser Certificates
________________________________________________________________________________
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. Bulletin Topics
Sun advises of a potential compromise of 2 specific security certificates
which had limited distribution.
Sun recommends that you follow the directions found at
http://sunsolve5.sun.com/secbull/certificate_howto.html
to determine if your web browser has accepted any of the potentially
compromised certificates.
2. Who is Affected
A web browser that has accepted a Sun certificate with one the following
serial numbers:
3181 B12D C422 5DAC A340 CF86 2710 ABE6 (Internet Explorer)
17:05:FB:13:A2:2F:9A:F3:C1:30:F5:62:6E:12:50:4C (Netscape)
3. Understanding the Vulnerability
Web browsers accept security certificates from trusted sources. A specific
certificate from Sun may have received outside exposure.
Systems that encounter this certificate are potentially vulnerable to
attack
from malicious applets, applications or components.
4. Corrective Action
Follow the instructions at
http://sunsolve5.sun.com/secbull/certificate_howto.html
to determine if your browser has accepted one of the potentially
compromised
certificates. If your browser contains this particular certificate, follow
the instructions to remove it.
_______________________________________________________________________________
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 2000 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.
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Previous advisories and external security bulletins can be retrieved from:
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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
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On call after hours for emergencies.
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