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AUSCERT External Security Bulletin Redistribution
ESB-2008.0457 -- [Solaris]
Security Vulnerability in Solaris 10 Trusted Extensions Labeled Networking
Related to Data Transfer Between Labeled Zones
5 May 2008
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AusCERT Security Bulletin Summary
---------------------------------
Product: Solaris 10 Operating System
Publisher: Sun Microsystems
Operating System: Solaris
Impact: Increased Privileges
Access: Existing Account
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-235421-1
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Solution Type: Sun Alert
Solution 235421 : Security Vulnerability in Solaris 10 Trusted
Extensions Labeled Networking Related to Data Transfer Between Labeled
Zones
Bug ID: 6513817
Product
Solaris 10 Operating System
Date of Workaround Release: 04-Apr-2008
Date of Resolved Release: 02-May-2008
SA Document Body
Vulnerability in Solaris 10 Trusted Extensions (see details below)
1. Impact
A security vulnerability in Solaris 10 Trusted Extensions labeled
networking may allow untrusted applications in separate labeled zones
to exchange data on the local system by circumventing label
restrictions.
2. Contributing Factors
This issue can occur on the following releases:
SPARC Platform
* Solaris 10 without patch 127127-11
x86 Platform
* Solaris 10 without patch 127128-11
Note 1: Solaris 8 and Solaris 9 are not impacted by this issue.
Note 2: This issue only impacts Solaris 10 systems which have
installed and configured Solaris Trusted Extensions. Solaris Trusted
Extensions is available starting in the Solaris 10 11/06 release.
To determine if a system is configured with Trusted Extensions, the
following command can be run:
$ svcs labeld
STATE STIME FMRI
online 16:19:20 svc:/system/labeld:default
If the system is configured with Trusted Extensions, the "labeld"
service will have an instance in the online state.
3. Symptoms
There are no predictable symptoms that would indicate the described
issue has been exploited.
4. Workaround
Interim Security Relief (ISR) is available for the following releases
from http://sunsolve.sun.com/tpatches
Some customers may be restricted to running the Common Criteria
evaluated version of the Solaris Trusted Extensions OE. These
customers may use the following IDRs that have been created based on
the estimate that Kernel Update patches 125100-08 (SPARC) and
125101-08 (x86) will be the Target Of Evaluation (TOE):
SPARC Platform
* Solaris 10 IDR137431-01
x86 Platform
* Solaris 10 IDR137432-01
Note: This document refers to one or more temporary patches
(T-Patches) and/or Interim Security Relief (IDRs) which are designed
to address the concerns identified herein. Sun has limited experience
with these T-Patches and IDRs due to their interim nature. As such,
you should only install the T-Patches or IDRs 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.
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Solaris 10 with patch 127127-11 or later
x86 Platform
* Solaris 10 with patch 127128-11 or later
For more information on Security Sun Alerts, see Technical Instruction
ID 213557 at:
http://sunsolve.sun.com/search/document.do?assetkey=1-61-213557-1
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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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