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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0528
Security Bulletin: Vulnerability in IBM Sterling B2B Integrator can lead to
          ability to execute OS commands from CLA2 server without
                      authentication (CVE-2012-5937).
                               12 April 2013

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

Product:           IBM Sterling B2B Integrator
Publisher:         IBM
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Administrator Compromise -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-5937  

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21633925

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Security Bulletin: Vulnerability in IBM Sterling B2B Integrator can lead to 
ability to execute OS commands from CLA2 server without authentication 
(CVE-2012-5937).

Flash (Alert)

Document information

Sterling B2B Integrator

Software version:
All

Operating system(s):
All

Reference #:
1633925

Modified date:
2013-04-10

Abstract

A security vulnerability exists in the Sterling B2B Integrator CLA2 server 
which permits an unauthenticated user to execute arbitrary OS commands.

Content

VULNERABILITY DETAILS:

CVE ID: CVE-2012-5937

DESCRIPTION:
A security vulnerability exists in the Sterling B2B Integrator CLA2 server 
which permits an unauthenticated user to execute arbitrary OS commands. An 
attacker with simple programming skills can exploit this vulnerability to 
execute any Unix or Windows command or script.

CVSS:
CVSS Base Score: 9.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/80403 for the 
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:C/I:N/A:C)

AFFECTED PRODUCTS:
Gentran Integration Suite 4.3
Sterling Integrator 5.0
Sterling Integrator 5.1
Sterling B2B Integrator 5.2
Sterling File Gateway 1.1
Sterling File Gateway 2.0
Sterling File Gateway 2.1
IBM Sterling File Gateway 2.2

REMEDIATION:
Apply the following fixes (APAR IC85189):

Product Version 		Remediation Fix Version

Gentran Integration Suite 4.3	iFix 4325_1 (download from IWM)
Sterling File Gateway 1.1 	

Sterling Integrator 5.0		iFix 5009_1 (download from IWM)
Sterling File Gateway 2.0 	

Sterling Integrator 5.1		Fix Pack 5104 (download from IWM)
Sterling File Gateway 2.1 	

Sterling B2B Integrator 5.2	iFix 5020401_2 (download from Fix Central)
Sterling File Gateway 2.2 	

IWM: https://www14.software.ibm.com/iwm/web/download_en_US.shtml

FixCentral: http://www-933.ibm.com/support/fixcentral/

Workaround(s):
Disable all instances of the CLA2 server. Please review Critical Patch 
Notifications for instructions on how to disable CLA2 server. The critical 
patch notifications are available on IWM (for GIS 4.3, SI 5.0, SFG 1.1 and 
SFG 2.0 versions) or FixCentral (for B2Bi 5.2 and SFG 2.2 versions)

Mitigation(s):
Isolate CLA2 server network connectivity to limit access.

CHANGE HISTORY:
10 April, 2013: Initial Version

REFERENCES:
· Complete CVSS Guide
· On-line Calculator V2
· X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/80403
· CVE-2012-5937

*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.

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