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AUSCERT External Security Bulletin Redistribution
ESB-2015.0987
Security Bulletin: Vulnerability in RC4 stream cipher affects IBM
InfoSphere Optim Performance Manager (CVE-2015-2808)
15 April 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM InfoSphere Optim Performance Manager
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Inspur K-UX
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-2808
Reference: 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=swg21722406
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Security Bulletin: Vulnerability in RC4 stream cipher affects IBM InfoSphere
Optim Performance Manager (CVE-2015-2808)
Security Bulletin
Document information
More support for:
InfoSphere Optim Performance Manager
Software version:
4.1, 4.1.0.1, 4.1.1, 5.1, 5.1.1, 5.1.1.1, 5.2, 5.3, 5.3.1
Operating system(s):
AIX, HP-UX, Inspur K-UX, Linux, Solaris, Windows
Reference #:
1722406
Modified date:
2015-04-10
Summary
The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM InfoSphere Optim
Performance Manager.
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 Optim Performance Manager for DB2 on Linux, UNIX, and Windows version 4.1
through 4.1.1
IBM InfoSphere Optim Performance Manager for DB2 on Linux, UNIX, and Windows
version 5.1 through 5.3.1
Remediation/Fixes
OPM Version Download URL
4.1 5.1.1.1 No fix available yet
5.2 5.3 No fix available yet, see Workarounds and Mitigations
5.3.1 Fix Central (Interim Fix 8409) or see Workarounds and Mitigations
For OPM versions 4.1 through 5.1.1.1, an IBM Java fix will be made available
by April 27, 2015. We will update this Security Bulletin when the IBM Java
fixes are available.
For OPM versions 5.2 through 5.3, until the IBM Java fix will be made
available by April 27, 2015, follow the Workarounds and Mitigation section
below.
For OPM version 5.3.1, installing the OPM Interim Fix changes the Java
Security configuration of the web console server to disallow RC4 cipher suites
for HTTPS connections (using the SSL/TLS protocol). If you are not able to
install the OPM Interim Fix, follow the Workarounds and Mitigation section
below.
Workarounds and Mitigations
For OPM versions 5.2 through 5.3.1 disable the RC4 cipher suite by adding
"RC4" to the list of disabled algorithms defined by the
jdk.tls.disabledAlgorithms security property in java.security file.
Edit the java.security file that is located in the InfoSphere Optim
Performance Manager installation directory:
/jre/lib/security/java.security
Add the following line and save the file:
jdk.tls.disabledAlgorithms=RC4
If the jdk.tls.disabledAlgorithms property was already enabled (without a "#"
character at the beginning of the line), i.e.:
jdk.tls.disabledAlgorithms=SSLv3
then append the text ", RC4" to the end of the line and save the file.
jdk.tls.disabledAlgorithms=SSLv3, RC4
Restart the OPM Web Console server for this change to take effect.
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.
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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
<10 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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