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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0366
Security Bulletin: Potential security exposure with IBM WebSphere DataPower
          SOA Appliance (CVE-2013-0169 also known as "Lucky 13")
                               12 March 2013

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

Product:           IBM WebSphere DataPower SOA Appliance
Publisher:         IBM
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2013-0169  

Reference:         ASB-2013.0025
                   ESB-2013.0316
                   ESB-2013.0282
                   ESB-2013.0235
                   ESB-2013.0234
                   ESB-2013.0205

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21626523

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Security Bulletin: Potential security exposure with IBM WebSphere DataPower SOA
Appliance (CVE-2013-0169 also known as "Lucky 13")

Document information

WebSphere DataPower SOA Appliances

General

Software version:
3.8.2, 4.0.1, 4.0.2, 5.0.0

Operating system(s):
Firmware

Reference #:
1626523

Modified date:
2013-03-08

Flash (Alert)

Abstract

Security fix for SSL/TLS vulnerability CVE-2013-0169 (also known as "Lucky 13")
Content

A recently discovered SSL, TLS and DTLS Plaintext Recovery Attack, known as 
"Lucky 13" (CVE-2013-0169) will be addressed in the WebSphere DataPower SOA 
appliance by APAR fix IC90431.

Until such time as the APAR fix is available in a fix pack, a stream cipher 
(RC4) may be used to protect against this vulnerability. The protocol problem
that allows the attack only affects block ciphers such as 3DES and AES. RC4 is
a stream cipher supported by SSL/TLS and its use avoids this attack entirely.

To configure this in the DataPower WebGUI, enter the string RC4-SHA:RC4-MD5 
into the Ciphers property in the Crypto Profile and Save. With this 
configuration setting, DataPower will only negotiate strong, non-export cipher
suites involving RC4 - a stream cipher rather than a block cipher. 

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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===========================================================================
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The University of Queensland
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