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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0403
 Security Bulletin: Privilege escalation attacks possible due to improper
         file ownership/permissions in IBM InfoSphere Information
                          Server (CVE-2012-5938).
                               19 March 2013

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM InfoSphere Information Server
Publisher:         IBM
Operating System:  AIX
                   Solaris
                   Linux variants
                   HP-UX
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-5938  

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21628844

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Privilege escalation attacks possible due to improper file
ownership/permissions in IBM InfoSphere Information Server (CVE-2012-5938).

Document information

InfoSphere Information Server

Software version:
8.1, 8.5, 8.7, 9.1

Operating system(s):
AIX, HP-UX, Linux, Solaris

Reference #:
1628844

Modified date:
2013-03-15

Flash (Alert)

Abstract

Security Bulletin: Privilege escalation attacks possible due to improper file
ownership/permissions in IBM InfoSphere Information Server (CVE-2012-5938).

Content

VULNERABILITY DETAILS:

CVE ID: CVE-2012-5938

DESCRIPTION: IBM InfoSphere Information Server installation creates files with
inadequate permission restrictions that can lead to privilege escalation 
attacks.

CVSS:

CVSS Base Score: 7.2
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/80493 for the 
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C)

AFFECTED PRODUCTS:

IBM InfoSphere Information Server Versions 8.1, 8.5, 8.7 and 9.1 running on all
Linux/Unix platforms.

REMEDIATION:
The recommended solution is to apply the fix as soon as practical. Please see
below for information on the fixes available.

Fix:

Version 8.1:
- -- Contact IBM Information Server Support for information

Versions 8.5:
- --Apply the IBM InfoSphere Information Server 8.5 Information Services 
Framework (ISF) Security Patch

Version 8.7:
- --Apply the IBM InfoSphere Information Server 8.7 Information Services 
Framework (ISF) Security Patch

Version 9.1
- --Contact IBM Information Server Support for information

Workaround(s):
None known.

Mitigation:
None known.

REFERENCES:
· Complete CVSS Guide
· On-line Calculator V2
· X-Force Vulnerability Database http://xforce.iss.net/xforce/xfdb/80493
· CVE-2012-5938

RELATED INFORMATION:
· IBM Secure Engineering Web Portal
· IBM Product Security Incident Response Blog

ACKNOWLEDGEMENT:

CHANGE HISTORY:
· 15 March 2013: Original copy

*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.

Copyright and trademark information

IBM, the IBM logo and ibm.com are trademarks of International Business 
Machines Corp., registered in many jurisdictions worldwide. Other product 
and service names might be trademarks of IBM or other companies. A current 
list of IBM trademarks is available on the Web at "Copyright and trademark 
information" at www.ibm.com/legal/copytrade.shtml.

- --------------------------END INCLUDED TEXT--------------------

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