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AUSCERT External Security Bulletin Redistribution
ESB-2010.0074
Multiple Security Vulnerabilities in BIND DNSSEC Software Shipped With
Solaris May Cause Bogus NXDOMAIN Responses
22 January 2010
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AusCERT Security Bulletin Summary
---------------------------------
Product: BIND
Publisher: Sun Microsystems
Operating System: Solaris
OpenSolaris
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2010-0097 CVE-2009-4022
Reference: ESB-2010.0053
ESB-2009.1561
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-275890-1
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Article ID : 275890
Article Type : Sun Alert
Last reviewed : 2010-01-21
Audience : PUBLIC
Keywords :
Copyright Notice: Copyright © 2009 Sun Microsystems, Inc. All Rights
Reserved
Multiple Security Vulnerabilities in BIND DNSSEC Software Shipped With
Solaris May Cause Bogus NXDOMAIN Responses
_________________________________________________________________
Category : Security
Release Phase : Workaround
Bug Id : 6916058
Product : Solaris 9 Operating System
Solaris 10 Operating System
OpenSolaris
Date of Workaround Release : 21-Jan-2010
Multiple Security Vulnerabilities in BIND DNSSEC Software Shipped With Solaris
May Cause Bogus NXDOMAIN Responses
1. Impact
Multiple security vulnerabilities have been identified in BIND DNSSEC
bundled with Solaris:
1. An authentication security vulnerability in named(1M) may allow a
remote unprivileged user to cause named(1M) to return incorrect
addresses for Internet hosts, thereby redirecting end users to
unintended hosts or services.
This issue is also referenced in the following documents:
US-CERT Vulnerability Note VU#418861 at
http://www.kb.cert.org/vuls/id/418861
CVE-2009-4022 at
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4022
2. A vulnerability in the way named(1M) handles recursive client
queries may allow a remote unprivileged user to cause named(1M) to
return NXDOMAIN (Non-Existent Domain) for Internet hosts thus causing
a Denial of Service (DoS) for those hosts to end users.
This issue is also referenced in the following documents:
US-CERT Vulnerability Note VU#360341 at
http://www.kb.cert.org/vuls/id/360341
CVE-2010-0097 at
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0097
Also at https://www.isc.org/advisories/CVE-2010-0097
2. Contributing Factors
These issues can occur in the following releases:
SPARC Platform
* Solaris 9
* Solaris 10
* OpenSolaris based upon builds snv_01 or later
x86 Platform
* Solaris 9
* Solaris 10
* OpenSolaris based upon builds snv_01 or later
Notes:
1. BIND shipped with Solaris 8 does not support DNSSEC and is
therefore not impacted by this issue.
2. Only systems with the BIND named(1M) service enabled and configured
as a DNSSEC-validating nameserver are impacted by this issue. To
verify if BIND is running on a system, the following command can be
run:
$ pgrep named && echo 'BIND is running'
To be a DNSSEC-validating nameserver requires trust anchors to be
configured at this time. Check for "trusted-keys" statements in
'/etc/named.conf' and files included by 'named.conf' as in the
following example:
$ grep "trusted-keys" /etc/named.conf
3. OpenSolaris distributions may include additional bug fixes above
and beyond the base build from which it was derived. The base build
can be derived as follows:
$ uname -a
SunOS phys-node-1 5.11 snv_94 i86pc i386 i86pc
3. Symptoms
There are no predictable symptoms that would indicate the described
issues have occurred.
4. Workaround
Interim Security Relief (ISR) is available from
http://sunsolve.sun.com/tpatches for the following releases:
SPARC Platform
* Solaris 9 IDR143887-01
* Solaris 10 IDR143885-01
x86 Platform
* Solaris 9 IDR143888-01
* Solaris 10 IDR143886-01
Note: This document refers to one or more Interim Security Relief
(ISRs) which are designed to address the concerns identified herein.
Sun has limited experience with these (ISRs) due to their interim
nature. As such, you should only install the ISRs on systems meeting
the configurations described above. Sun may release full patches at a
later date, however, Sun is under no obligation whatsoever to create,
release, or distribute any such patch.
Note these IDRs also include the relief for Bug 6902912 per Sun Alert
273169.
5. Resolution
A final resolution is pending completion.
For more information on Security Sun Alerts, see Technical
Instruction ID 213557.
This Sun Alert notification is being provided to you on an "AS IS"
basis. This Sun Alert notification may contain information provided by
third parties. The issues described in this Sun Alert notification may
or may not impact your system(s). Sun makes no representations,
warranties, or guarantees as to the information contained herein. ANY
AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
This Sun Alert notification contains Sun proprietary and confidential
information. It is being provided to you pursuant to the provisions of
your agreement to purchase services from Sun, or, if you do not have
such an agreement, the Sun.com Terms of Use. This Sun Alert
notification may only be used for the purposes contemplated by these
agreements.
Copyright 2000-2010 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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