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AUSCERT External Security Bulletin Redistribution
ESB-2015.1159
Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Image
Construction and Composition Tool (CVE-2015-2808)
29 April 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Image Construction and Composition Tool
Publisher: IBM
Operating System: AIX
Red Hat
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-2808
Reference: ESB-2015.1156
ESB-2015.1155
ESB-2015.1154
ESB-2015.1153
ESB-2015.1150
ESB-2015.1149
ESB-2015.1148
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21883839
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Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Image
Construction and Composition Tool (CVE-2015-2808)
Document information
More support for:
PureApplication System
Security
Software version:
1.1.0.3, 1.1.0.4, 1.1.0.5, 2.0, 2.0.0.1, 2.1.0.0
Operating system(s):
AIX, Linux Red Hat - xSeries, Windows
Reference #:
1883839
Modified date:
2015-04-27
Security Bulletin
Summary
The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM Image Construction and
Composition Tool.
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 Image Construction and Composition Tool v2.2.1.3
IBM Image Construction and Composition Tool v2.3.1.0
IBM Image Construction and Composition Tool v2.3.2.0
Remediation/Fixes
The solution is to apply the following IBM Image Construction and Composition
Tool version fixes.
Upgrade the IBM Image Construction and Composition Tool to the following fix
levels:
For IBM Image Construction and Composition Tool v2.2.1.3
IBM Image Construction and Composition Tool v2.2.1.3 Build 29
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=1.1.0.5&platform=All&function=fixId&fixids=ICCT_efix_Repository_2.2.1.3-29&includeSupersedes=0
For IBM Image Construction and Composition Tool v2.3.1.0
IBM Image Construction and Composition Tool v2.3.1.0 Build 40
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.0.0.1&platform=All&function=fixId&fixids=ICCT_efix_Repository_2.3.1.0-40&includeSupersedes=0
For IBM Image Construction and Composition Tool v2.3.2.0
IBM Image Construction and Composition Tool v2.3.2.0 Build 13
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.1.0.0&platform=All&function=fixId&fixids=ICCT_efix_Repository_2.3.2.0-13&includeSupersedes=0
You should verify applying this fix does not cause any compatibility issues.
The fix disables RC4 stream cipher by default. If you change the default
setting after applying the fix, 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.
Workarounds and Mitigations
None
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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
27 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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