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AUSCERT External Security Bulletin Redistribution
ESB-2015.1013
Security Bulletin: Vulnerability in RC4 stream cipher
affects IBM Decision Optimization Center (CVE-2015-2808)
16 April 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Decision Optimization Center
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-2808
Reference: ESB-2015.1003
ESB-2015.1002
ESB-2015.1000
ESB-2015.0999
ESB-2015.0997
ESB-2015.0995
ESB-2015.0994
ESB-2015.0992
ESB-2015.0991
ESB-2015.0990
ESB-2015.0988
ESB-2015.0987
ESB-2015.0986
ESB-2015.0969
ESB-2015.0967
ESB-2015.0966
ESB-2015.0965
ESB-2015.0964
ESB-2015.0963
ESB-2015.0962
ESB-2015.0961
ESB-2015.0960
ESB-2015.0958
ESB-2015.0956
ESB-2015.0955
ESB-2015.0954
ESB-2015.0953
ESB-2015.0950.2
ESB-2015.0949.2
ESB-2015.0948.2
ESB-2015.0947.2
ESB-2015.0946.2
ESB-2015.0944.2
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21882592
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Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Decision
Optimization Center (CVE-2015-2808)
Security Bulletin
Document information
More support for:
IBM Decision Optimization Center
General
Software version:
3.4, 3.4.0.1, 3.4.0.2, 3.4.0.3, 3.5, 3.6, 3.6.0.1, 3.7, 3.8
Operating system(s):
AIX, Linux, Windows
Software edition:
All Editions
Reference #:
1882592
Modified date:
2015-04-15
Summary
The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM Decision Optimization
Center
Vulnerability Details
CVEID: CVE-2015-2808
DESCRIPTION: The RC4 algorithm, as used in the TLS protocol and SSL protocol,
might allow a remote attacker to obtain sensitive information. An attacker can
exploit this vulnerability to remotely expose account credentials without
requiring an active man-in-the-middle session. Successful exploitation might
allow an attacker to retrieve credit card data or other sensitive information.
This vulnerability is commonly referred to as "Bar Mitzvah Attack".
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/101851 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Affected Products and Versions
IBM Decision Optimization Center: v3.8 and earlier
Remediation/Fixes
The recommended solution is to download and install IBM Java SDK version 6
Service Refresh 16 Fix Pack 3 with fixes for CVE-2015-0138 (FREAK) and
CVE-2015-2808 (Bar Mitzvah) as soon as practicable.
Before installing a newer version of IBM Java SDK, ensure that you:
Close any open programs that you have running;
Rename the initial directory of the IBM Java SDK (for example: with
.old at the end),
Download and install IBM Java SDK version 6 Service Refresh 16 Fix Pack 3
or later from Fix Central
Check the build number with the command "java -version". The fix is
correctly installed if the build number is equal to
pwa6460sr16fp3ifix-20150407_01(SR16 FP3+IV70681+IV71888).
You must verify that applying this fix does not cause any compatibility
issues. The fix disables RC4 stream cipher by default. If you change this
setting you will expose yourself to the attack described above. IBM recommends
that you review your entire environment to identify other areas where you have
enabled the RC4 stream cipher and take appropriate mitigation and remediation
actions.
Further information is available about this vulnerability in Websphere
Application Server and here are the detailed instructions for updating IBM
Java SDK.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
None
Change History
15 April 2015: Original Version Published
*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 Security Bulletin.
Disclaimer
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.
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