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AUSCERT External Security Bulletin Redistribution
ESB-2015.1088
Security Bulletin:Vulnerability in RC4 stream cipher affects
IBM WebSphere Cast Iron Solution (CVE-2015-2808)
21 April 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Cast Iron Solution
Publisher: IBM
Operating System: Network Appliance
Linux variants
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-2808
Reference: 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=swg21883263
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Security Bulletin:Vulnerability in RC4 stream cipher affects IBM WebSphere
Cast Iron Solution (CVE-2015-2808)
Security Bulletin
Document information
More support for:
WebSphere Cast Iron Cloud integration
Software version:
6.1.0.6, 6.1.0.7, 6.1.0.8, 6.1.0.9, 6.1.0.12, 6.1.0.15, 6.3, 6.3.0.1, 6.3.0.2,
6.4.0.0, 6.4.0.1, 7.0.0, 7.0.0.1, 7.0.0.2
Operating system(s):
Firmware, Linux, Windows
Reference #:
1883263
Modified date:
2015-04-20
Summary
The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM WebSphere Cast Iron
Solution(CVE-2015-2808)
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
This vulnerability affects all versions of the product
WebSphere Cast Iron v 7.0,0,x,
WebSphere Cast Iron v 6.4.0.x
WebSphere Cast Iron v 6.3.0.x
WebSphere Cast Iron v 6.1.0.x
WebSphere Cast Iron v 6.0.0.x
Remediation/Fixes
Product VRMF APAR Remediation/First Fix
Cast Iron Appliance 7.* LI78552 iFix 7.0.0.2-CUMUIFIX-011
Cast Iron Appliance 6.4.0.x LI78552 iFix 6.4.0.1-CUMUIFIX-028
Cast Iron Appliance 6.3.0.x LI78552 iFix 6.3.0.2-CUMUIFIX-013
Cast Iron Appliance 6.1.0.x LI78552 iFix 6.1.0.15-CUMUIFIX-020
Workarounds and Mitigations
Customers on Cast Iron v6.0.0.x should contact IBM Support for migrating to
one of the remediated releases.
Appliance is upgraded with script changes.
For Studio and Secure connectors, to disable the RC4 stream cipher do the
following:
Studio
Go to the the location studio is installed
<installation directory>\jre\lib\security\java.security
Add RC4 to the list of disabled TLS algorithms specified by the property
jdk.tls.disabledAlgorithms. For example:
jdk.tls.disabledAlgorithms=SSLv3, RC4
For Secure connectors
Go to the the location where secure connector is installed
Windows: <installation directory>\jre\lib\security\java.security
Linux :
Add RC4 to the list of disabled TLS algorithms specified by the property
jdk.tls.disabledAlgorithms. For example:
jdk.tls.disabledAlgorithms=SSLv3, RC4
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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