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AUSCERT External Security Bulletin Redistribution
ESB-2015.1228
Security Bulletin: Vulnerability in RC4 stream cipher affects the IBM
Installation Manager and IBM Packaging Utility (CVE-2015-2808)
5 May 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Installation Manager
IBM Packaging Utility
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
OS X
Solaris
Windows
z/OS
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-2808
Reference: ESB-2015.1221
ESB-2015.1218
ESB-2015.1217
ESB-2015.1216
ESB-2015.1215
ESB-2015.1214
ESB-2015.1202
ESB-2015.1199
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21883505
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Security Bulletin: Vulnerability in RC4 stream cipher affects the IBM
Installation Manager and IBM Packaging Utility (CVE-2015-2808)
Document information
More support for:
IBM Installation Manager
Install
Software version:
1.0, 1.0.0.1, 1.0.0.2, 1.0.0.3, 1.0.0.4, 1.0.0.5, 1.1, 1.1.0.1, 1.1.0.2,
1.1.1, 1.1.2, 1.2, 1.2.1, 1.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.4.1, 1.4,
1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.5, 1.5.0.1, 1.5.1, 1.5.2, 1.5.3, 1.6, 1.6.1,
1.6.2, 1.6.3, 1.6.3.1, 1.7, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.4.1, 1.8, 1.8.1,
1.8.2, 1.8.2.1
Operating system(s):
AIX, HP-UX, IBM i, Linux, Mac OS X, Solaris, Windows, z/OS
Reference #:
1883505
Modified date:
2015-05-05
Security Bulletin
Summary
The RC4 Bar Mitzvah Attack for SSL/TLS affects the IBM Installation Manager
and IBM Packaging Utility
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 Installation Manager and IBM Packaging Utility versions 1.8.2.1 and
earlier.
Remediation/Fixes
Product VRMF APAR Remediation/First Fix
IBM Installation Manager 1.7.4.x None 1.7.4.2 IBM Installation Manager Remediation
and IBM Packaging Utility 1.7.4.2 IBM Packaging Utility Remediation
Please note that the 1.7.4.2 fix is intended
for upgrade of 1.7.4.1 and earlier versions
which continue support on platforms that are
NOT supported by 1.8 or later versions.
Users running 1.7.4.1 or earlier version on
platforms that ARE supported by 1.8.x version,
should upgrade to 1.8.2.1 and implement the work
around described below.
Installation Manager and 1.8.x None See 1.8.x work around below
IBM Packaging Utility
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
IBM Installation Manager 1.8.x work around:
To work around the RC4 Bar Mitzvah security vulnerability in IBM Installation
Manager version 1.8.x, update the java.security file to add the RC4 string to
the list of disabled TLS algorithms identified by jdk.tls.disabledAlgorithms
java property.
For example:
jdk.tls.disabledAlgorithms=SSLv3, RC4
You will find the java.security file in the following folder, by platform:
AIX Platforms:
<Installation Manager install_dir>/eclipse/jre_<version>/jre/lib/security/
HP-UX Platforms:
<Installation Manager install_dir>/eclipse/jre_<version>/jre/lib/security/
Linux and Solaris Platforms:
<Installation Manager install_dir>/eclipse/jre_<version>/jre/lib/security/
Windows Platforms:
<Installation Manager install_dir>\eclipse\jre_<version>\jre\lib\security\
Mac OSX Platforms:
<Installation Manager
install_dir>/eclipse/jre_<version>/jre/Contents/Home/lib/security/
IBM Packaging Utility 1.8.x work around:
To work around the RC4 Bar Mitzvah security vulnerability in IBM Packaging
Utility version 1.8.x, update the java.security file to add the RC4 string to
the list of disabled TLS algorithms identified by jdk.tls.disabledAlgorithms
java property.
For example:
jdk.tls.disabledAlgorithms=SSLv3, RC4
You will find the java.security file in the following folder, by platform:
AIX Platforms:
<Packaging Utility install_dir>/jre/lib/security/
Linux and Solaris Platforms:
<Packaging Utility install_dir>/jre/lib/security/
Windows Platforms:
<Packaging Utility install_dir>\jre\lib\security\
Mac OSX Platforms:
<Packaging Utility install_dir>/jre/Contents/Home/lib/security/
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.
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Important note
IBM strongly suggests that all System z customers be subscribed to the System
z Security Portal to receive the latest critical System z security and
integrity service. If you are not subscribed, see the instructions on the
System z Security web site. Security and integrity APARs and associated fixes
will be posted to this portal. IBM suggests reviewing the CVSS scores and
applying all security or integrity fixes as soon as possible to minimize any
potential risk.
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
4 May 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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