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AUSCERT External Security Bulletin Redistribution
ESB-2009.1319.2
A Security Vulnerability in the Solaris iSCSI Management Commands
(iscsiadm(1M) and iscsitadm(1M)) may Allow Privilege Escalation
25 September 2009
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AusCERT Security Bulletin Summary
---------------------------------
Product: Solaris iSCSI Management Commands
Publisher: Sun Microsystems
Operating System: Solaris
OpenSolaris
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2009-3390
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-261849-1
Revision History: September 25 2009: Added CVE Reference
September 23 2009: Initial Release
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Solution Type: Sun Alert
Solution 261849 : A Security Vulnerability in the Solaris iSCSI
Management Commands (iscsiadm(1M) and iscsitadm(1M)) may Allow
Privilege Escalation
Bug ID: 6801126
Product:
Solaris 10 Operating System
OpenSolaris
Date of Resolved Release: 21-Sep-2009
SA Document Body
A security vulnerability in the Solaris iSCSI Management commands
(iscsiadm(1M) and iscsitadm(1M)) may allow privilege escalation:
1. Impact
A security vulnerability in the Solaris iSCSI management commands
(iscsiadm(1M) and iscsitadm(1M)) may allow a local user who has been
assigned an RBAC execution profile which specifies additional
privileges for the iscsiadm(1M) or iscsitadm(1M) commands, such as the
"File System Management" profile, to execute arbitrary commands with
the privileges specified in the RBAC profile.
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* Solaris 10 with patch 119090-16 through 119090-32 and
without patch 119090-33
* OpenSolaris based upon builds snv_28 through snv_109
x86 Platform
* Solaris 10 with patch 119091-16 through 119091-33 and
without patch 119091-34
* OpenSolaris based upon builds snv_28 through snv_109
Note 1: Solaris 8 and Solaris 9 are not impacted by this issue.
Note 2: 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
Note 3: This issue only affects systems where a local user has been
granted an execution profile allowing them to run the iscsiadm(1M) or
iscsitadm(1M) commands with elevated privileges such as the "File
System Management" profile.
The assignment of profiles to users is configured in the user_attr(4)
database. The exec_attr(4) database specifies the execution attributes
associated with profiles. Thus, if a system is configured to only
reference local files for the user_attr(4) and exec_attr(4) databases
then users who have been assigned a profile containing iscsiadm(1M) or
iscsitadm(1M) can be determined as follows:
$ egrep 'iscsiadm|iscsitadm' /etc/security/exec_attr
File System Management:solaris:cmd:::/usr/sbin/iscsiadm:euid=0;privs=basic
File System Management:solaris:cmd:::/usr/sbin/iscsitadm:euid=0;privs=basic
$ grep 'File System Management' /etc/user_attr
username::::profiles=File System Management
Systems which are configured via nsswitch.conf(4) to use attribute
sources other than local files for the user_attr(4) and exec_attr(4)
databases will need to use the relevant commands to perform the
equivalent search. See the documentation for the relevant attribute
source (for example, ldap(1), ypfiles(4) or nis+(1)) for details.
3. Symptoms
There are no predictable symptoms that would indicate the described
issue has occurred.
4. Workaround
To work around this issue until patches can be applied, remove
references to the iscsiadm(1M) and iscsitadm(1M) commands from the
exec_attr(4) database. This will result in users who have been
assigned the relevant execution profile(s) to no longer be granted
privileged access to the iscsiadm(1M) and iscsitadm(1M) commands.
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Solaris 10 with patch 119090-33 or later
* OpenSolaris based upon builds snv_110 or later
x86 Platform
* Solaris 10 with patch 119091-34 or later
* OpenSolaris based upon builds snv_110 or later
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
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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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