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AUSCERT External Security Bulletin Redistribution
ESB-2010.0007
hald daemon vulnerability in OpenSolaris
7 January 2010
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AusCERT Security Bulletin Summary
---------------------------------
Product: hald
Publisher: Sun Microsystems
Operating System: OpenSolaris
Impact/Access: Provide Misleading Information -- Unknown/Unspecified
Resolution: Patch/Upgrade
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-274830-1
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Article ID : 274830
Article Type : Sun Alert
Last reviewed : 2010-01-05
Audience : PUBLIC
Keywords :
Copyright Notice: Copyright © 2009 Sun Microsystems, Inc. All Rights
Reserved
Security Vulnerability May Prevent OpenSolaris "hald" Daemon From
Correctly Writing Audit Records
_________________________________________________________________
Category : Security
Release Phase : Resolved
Bug Id : 6905945
Product : OpenSolaris
Date of Resolved Release : 05-Jan-2010
A security vulnerability in the OpenSolaris hald(1M) daemon ...
1. Impact
A security vulnerability in the OpenSolaris hald(1M) daemon may result
in it not writing audit records when the system is configured to do so.
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* OpenSolaris based upon builds snv_51 through snv_130
x86 Platform
* OpenSolaris based upon builds snv_51 through snv_130
Note 1: This issue only affects systems which have Solaris Auditing
enabled (see bsmconv(1M)). To determine if a system has Solaris
Auditing enabled the grep(1) command can be used to search the
'/etc/system' file for a reference to the c2audit kernel module as in
the following example:
$ grep c2audit /etc/system
set c2audit:audit_load = 1
Note 2: Solaris 8, 9 and 10 do not include the hald daemon and are
therefore not impacted by this issue.
Note 3: This issue only affects hosts which have the hald daemon
enabled.
To determine if hald daemon is enabled in system, the following
command can be used:
$ svcs hal
STATE STIME FMRI
online 10:08:43 svc:/system/hal:default
Note 4: OpenSolaris distributions may include additional bug fixes
above and beyond the build from which it was derived. To determine the
base build of OpenSolaris, the following command can be used:
$ uname -v
snv_86
3. Symptoms
When this issue occurs, audit records related to the hald daemon are
not written to the auditing log. If the "priv_debug" parameter is set
in the /etc/system file at boot time, then a message similar to the
following may appear in the messages file:
NOTICE: hald: missing privilege "proc_audit" (euid = 0,
syscall = 186) needed at auditctl+0x58
4. Workaround
There is no workaround for this issue. Please see Resolution section
below.
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* OpenSolaris based upon builds snv_131 or later
x86 Platform
* OpenSolaris based upon builds snv_131 or later
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 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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