SecurityTracker.com
Keep Track of the Latest Vulnerabilities
with SecurityTracker!
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 
Sign Up
Sign Up for Your FREE Weekly SecurityTracker E-mail Alert Summary
Instant Alerts
Buy our Premium Vulnerability Notification Service to receive customized, instant alerts
Affiliates
Put SecurityTracker Vulnerability Alerts on Your Web Site -- It's Free!
Partners
Become a Partner and License Our Database or Notification Service
Report a Bug
Report a vulnerability that you have found to SecurityTracker
bugs
@
securitytracker.com






Category:   OS (UNIX)  >   IBM AIX Vendors:   IBM
IBM AIX InfiniBand Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1028792
SecurityTracker URL:  http://securitytracker.com/id/1028792
CVE Reference:   CVE-2013-4011   (Links to External Site)
Date:  Jul 16 2013
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.1, 7.1
Description:   A vulnerability was reported in IBM AIX InfiniBand. A local user can obtain elevated privileges on the target system.

A local user can exploit flaws in the '.arp.ib.' commands to execute arbitrary commands on the target system with elevated privileges.

[Editor's note: The vendor's advisory also included an ibstat vulnerability, which was previously reported on June 10, 2013 in Alert ID 1028646.]

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued a fix.

6.1.6: IV43582
6.1.7: IV43827
6.1.8: IV43580
7.1.0: IV43562
7.1.1: IV43756
7.1.2: IV43561

The vendor's advisory is available at:

http://aix.software.ibm.com/aix/efixes/security/infiniband_advisory.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/infiniband_advisory.asc (Links to External Site)
Cause:   Not specified
Underlying OS:  

Message History:   None.


 Source Message Contents

Date:  Tue, 16 Jul 2013 21:45:20 +0000
Subject:  IBM AIX InfiniBand


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

IBM SECURITY ADVISORY

First Issued: Tue Jul 16 10:46:04 CDT 2013

http://aix.software.ibm.com/aix/efixes/security/infiniband_advisory.asc
===============================================================================
VULNERABILITY SUMMARY

VULNERABILITY: Security Vulnerabilities in AIX InfiniBand

PLATFORMS: AIX 6.1 and 7.1 releases

SOLUTION: Apply the fix as described below

THREAT: A local attacker could gain lateral or elevated privileges

CVE Number: CVE-2013-4011

Reboot required? NO
Workarounds? YES
Protected by FPM? NO
Protected by SED? NO
===============================================================================
DETAILED INFORMATION

I. DESCRIPTION

Both "ibstat" and .arp.ib. commands have security vulnerabilities that
can allow a non-privileged user to run malicious code with privileged
authority.

II. CVSS

CVSS Base Score: 7.2
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/85617 for the
current score
CVSS Environmental Score*: Undefined
CVSS String: (AV:L/AC:L/Au:N/C:C/I:C/A:C)

III. PLATFORM VULNERABILITY ASSESSMENT

Note: To use the following commands on VIOS you must first
execute:

oem_setup_env

To determine if your system is vulnerable, execute the following
command:

lslpp -L devices.common.IBM.ib.rte

The following fileset levels are vulnerable:

AIX Fileset Lower Level Upper Level
-------------------------------------------------------
devices.common.IBM.ib.rte 6.1.6.0 6.1.6.21
devices.common.IBM.ib.rte 6.1.7.0 6.1.7.18
devices.common.IBM.ib.rte 6.1.8.0 6.1.8.15
devices.common.IBM.ib.rte 7.1.0.0 7.1.0.21
devices.common.IBM.ib.rte 7.1.1.0 7.1.1.18
devices.common.IBM.ib.rte 7.1.2.0 7.1.2.15

IV. SOLUTIONS

A. APARS

IBM has assigned the following APARs to this problem:

AIX Level APAR number Availability
---------------------------------------------------
6.1.6 IV43582 08/16/13 SP12
6.1.7 IV43827 08/16/13 SP8
6.1.8 IV43580 08/16/13 SP3
7.1.0 IV43562 08/16/13 SP10
7.1.1 IV43756 08/16/13 SP8
7.1.2 IV43561 08/16/13 SP3

Subscribe to the APARs here:

http://www.ibm.com/support/docview.wss?uid=isg1IV43582
http://www.ibm.com/support/docview.wss?uid=isg1IV43827
http://www.ibm.com/support/docview.wss?uid=isg1IV43580
http://www.ibm.com/support/docview.wss?uid=isg1IV43562
http://www.ibm.com/support/docview.wss?uid=isg1IV43756
http://www.ibm.com/support/docview.wss?uid=isg1IV43561

By subscribing, you will receive periodic email alerting you
to the status of the APAR, and a link to download the fix once
it becomes available.

B. FIXES

Fixes are available. The fixes can be downloaded via ftp
from:

ftp://aix.software.ibm.com/aix/efixes/security/infiniband_fix.tar

The link above is to a tar file containing this signed
advisory, fix packages, and PGP signatures for each package.
The fixes below include prerequisite checking. This will
enforce the correct mapping between the fixes and AIX
Technology Levels.

AIX Level Interim Fix (*.Z)
-------------------------------------------------------------------
6.1.6.11 iv43582mBa.130626.epkg.Z
6.1.7.7 iv43827m7a.130614.epkg.Z
6.1.8.2 iv43580m2a.130619.epkg.Z
7.1.0.9 iv43562m9.130626.epkg.Z
7.1.1.7 iv43756m7a.130612.epkg.Z
7.1.2.2 iv43561m2a.130626.epkg.Z

VIOS Level Interim Fix (*.Z)
-------------------------------------------------------------------
2.2.2.2-FP-26 SP-02 iv43580m2a.130619.epkg.Z

To extract the fixes from the tar file:

tar xvf infiniband_fix.tar
cd infiniband_fix

Verify you have retrieved the fixes intact:

The checksums below were generated using the
"csum -h SHA1" (sha1sum) command is the followng:

csum -h SHA1 (sha1sum) filename
------------------------------------------------------------------
0222cd18e3316f3d73f6d5150d4d672347427bb4 iv43582mBa.130626.epkg.Z
9a274ef45ecad62e20720cca84ea69f4eaaba78e iv43827m7a.130614.epkg.Z
50b92bdb5156b55f245f4ffacfae113dd65326fe iv43580m2a.130619.epkg.Z
89e393e74b1d3c49d2735773ca49337e9bfcd1f1 iv43562m9.130626.epkg.Z
d9b39fa210731957fdd72c003aa6b53cecc8af35 iv43756m7a.130612.epkg.Z
622f1676ae6cb5b00f4131fad4774014ab160d2a iv43561m2a.130626.epkg.Z
50b92bdb5156b55f245f4ffacfae113dd65326fe iv43580m2a.130619.epkg.Z

To verify the sum, use the text of this advisory as input to sha1sum.
For example:

csum -h SHA1 -i Advisory.asc
sha1sum -c Advisory.asc

These sums should match exactly. The PGP signatures in the tar
file and on this advisory can also be used to verify the
integrity of the fixes. If the sums or signatures cannot be
confirmed, contact IBM AIX Security at
security-alert@austin.ibm.com and describe the discrepancy.

C. FIX AND INTERIM FIX INSTALLATION

IMPORTANT: If possible, it is recommended that a mksysb backup
of the system be created. Verify it is both bootable and
readable before proceeding.

To preview a fix installation:

installp -a -d fix_name -p all # where fix_name is the name of the
# fix package being previewed.
To install a fix package:

installp -a -d fix_name -X all # where fix_name is the name of the
# fix package being installed.

Interim fixes have had limited functional and regression
testing but not the full regression testing that takes place
for Service Packs; however, IBM does fully support them.

Interim fix management documentation can be found at:

http://www14.software.ibm.com/webapp/set2/sas/f/aix.efixmgmt/home.html

To preview an interim fix installation:

emgr -e ipkg_name -p # where ipkg_name is the name of the
# interim fix package being previewed.

To install an interim fix package:

emgr -e ipkg_name -X # where ipkg_name is the name of the
# interim fix package being installed.

V. WORKAROUNDS

Select one of the following:
----------------------------

1) Enabling PowerSC with DoD.xml profile will prevent this vulnerability.

2) Running aixpert with high-level security options (aixpert -l high)

3) Running aixpert with medium-level security options (aixpert -l medium)

4) Invoking fpm -l high to remove setuid and setgid permissions for high
level security.

5) Invoking fpm -l medium to remove setuid and setgid permissions that
fall into medium level security.

VI. OBTAINING FIXES

AIX security fixes can be downloaded from:

ftp://aix.software.ibm.com/aix/efixes/security

AIX fixes can be downloaded from:

http://www.ibm.com/eserver/support/fixes/fixcentral/main/pseries/aix

NOTE: Affected customers are urged to upgrade to the latest
applicable Technology Level and Service Pack.

VII. CONTACT INFORMATION

If you would like to receive AIX Security Advisories via email,
please visit:

http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq

Comments regarding the content of this announcement can be
directed to:

security-alert@austin.ibm.com

To request the PGP public key that can be used to communicate
securely with the AIX Security Team you can either:

A. Send an email with "get key" in the subject line to:

security-alert@austin.ibm.com

B. Download the key from a PGP Public Key Server. The key ID is:

0x28BFAA12

Please contact your local IBM AIX support center for any
assistance.

eServer is a trademark of International Business Machines
Corporation. IBM, AIX and pSeries are registered trademarks of
International Business Machines Corporation. All other trademarks
are property of their respective holders.

VIII. REFERENCES:

Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html
On-line Calculator V2:
http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/85617
CVE-2013-4011: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4011

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the
impact of this vulnerability in their environments by accessing the links
in the Reference section of this Flash.

Note: According to the Forum of Incident Response and Security Teams
(FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry
open standard designed to convey vulnerability severity and help to
determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES
"AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE
RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY
VULNERABILITY.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.13 (AIX)

iEYEARECAAYFAlHlaxgACgkQ4fmd+Ci/qhK9jgCfXAKn32O85wVQEMsG70ibjnaQ
N6kAnios8imzN0+Ax/NFxzlVqjbob6qe
=gSwn
-----END PGP SIGNATURE-----
 
 


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

Copyright 2014, SecurityGlobal.net LLC