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AUSCERT External Security Bulletin Redistribution
ESB-2015.0990
Security Bulletin: Vulnerability in RC4 stream cipher affects various Optim
data server tools desktop products (CVE-2015-2808)
16 April 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Data Studio
Publisher: IBM
Operating System: Linux variants
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2015-2808
Reference: 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=swg21722402
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Security Bulletin: Vulnerability in RC4 stream cipher affects various Optim
data server tools desktop products (CVE-2015-2808)
Security Bulletin
Document information
More support for:
IBM Data Studio
General
Software version:
3.1, 3.1.1, 3.2, 4.1, 4.1.0.1, 4.1.1.0
Operating system(s):
Linux, Windows
Reference #:
1722402
Modified date:
2015-04-10
Summary
The RC4 Bar Mitzvah Attack for SSL/TLS affects various Optim data server tools
desktop products.
Vulnerability Details
CVEID: CVE-2015-2808
DESCRIPTION: The RC4 algorithm, as used in the TLS protocol and SSL protocol,
could allow a remote attacker to obtain sensitive information. An attacker
could exploit this vulnerability to remotely expose account credentials
without requiring an active man-in-the-middle session. Successful exploitation
could 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 Data Studio client 4.1.1 and earlier
IBM InfoSphere Optim Query Workload Tuner for DB2 for LUW 4.1.1 and earlier
IBM InfoSphere Optim Query Workload Tuner for DB2 for z/OS 4.1.1 and earlier
InfoSphere Data Architect 9.1.2 and earlier
Remediation/Fixes
None
Workarounds and Mitigations
The following mitigation applies to:
Product Version
IBM Data Studio client 3.2, 4.1.0, 4.1.0.1, 4.1.1
IBM InfoSphere Optim Query Workload Tuner for DB2 for LUW 3.2, 4.1.0, 4.1.0.1,
4.1.1
IBM InfoSphere Optim Query Workload Tuner for DB2 for z/OS 3.2, 4.1.0, 4.1.0.1, 4.1.1
InfoSphere Data Architect 8.5, 9.1, 9.1.1, 9.1.2
To disable the RC4 stream cipher in the JVM environment of the product, modify
the java.security file.
The java.security file is located in the security folder relative to the
product install directory (for example: C:\Program
Files\IBM\DS4.1.1\jdk\jre\lib\security\java.security).
Open the file and add the following property at the end of the file:
jdk.tls.disabledAlgorithms=RC4
If there is an existing entry already, append to it using a comma to separate
each algorithm. For example:
jdk.tls.disabledAlgorithms= SSLv3,RC4
Note: editing the java.security file may require administrator privileges.
Restart the product to pick up the security configuration updates.
You should verify applying this configuration change does not cause any
compatibility issues. Not disabling the RC4 stream cipher 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.
For earlier versions, IBM recommends upgrading to the latest supported version
of the product. 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
*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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