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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.1348
Security Bulletin: Vulnerability in SSLv3 affects Rational Method Composer
                servlet search and RSS feed (CVE-2014-3566)
                                19 May 2015

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Rational Method Composer
Publisher:         IBM
Operating System:  Linux variants
                   Windows
Impact/Access:     Access Confidential Data -- Remote with User Interaction
                   Reduced Security         -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3566  

Reference:         ASB-2014.0122

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21688400

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Security Bulletin: Vulnerability in SSLv3 affects Rational Method Composer 
servlet search and RSS feed (CVE-2014-3566)

Security Bulletin

Document information

More support for:

Rational Method Composer

General Information

Software version:

7.0, 7.0.1, 7.1, 7.1.1, 7.2, 7.5, 7.5.0.1, 7.5.1, 7.5.1.1, 7.5.1.2, 7.5.2, 
7.5.2.1, 7.5.2.2

Operating system(s):

Linux, Windows

Reference #:

1688400

Modified date:

2015-05-18

Summary

SSLv3 contains a vulnerability that has been referred to as the Padding Oracle
On Downgraded Legacy Encryption (POODLE) attack. SSLv3 is enabled in IBM 
Rational Method Composer.

Vulnerability Details

CVE-ID: CVE-2014-3566

Description: Product could allow a remote attacker to obtain sensitive 
information, caused by a design error when using the SSLv3 protocol. A remote
user with the ability to conduct a man-in-the-middle attack could exploit this
vulnerability via a POODLE (Padding Oracle On Downgraded Legacy Encryption) 
attack to decrypt SSL sessions and access the plaintext of encrypted 
connections. When the user disable the SSLv3 in the service environment, it 
may cause the servlet search and RSS feed to fail (Only appeared when the 
server use the IBM JDK until now).

CVSS Base Score: 4.3

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/97013 for the 
current score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:N/AC:M/Au:S/C:N/I:P/A:N)

Affected Products and Versions

7.5.2.2 and earlier.

Remediation/Fixes

Upgrade to version 7.5.2.3 or later.

Prepare for the fix by upgrading to Rational Method Composer Fix Pack 2 
(7.5.2.2) for 7.5.2.

Prepare for the fix by upgrading to Rational Method Composer Fix Pack 2 
(7.5.1.2) for 7.5.1.

Prepare for the fix by upgrading to Rational Method Composer Fix Pack 1 
(7.5.0.1) for 7.5.

Product VRMF APAR Remediation

Rational Method Composer 7.5.2.2 7.5.2.2-ifix1 PI28819 
7.5.0.1.ifix2-7.5.1.2.ifix1.7.5.2.2-ifix1

Rational Method Composer 7.5.1.2 7.5.1.2-ifix1 PI28819 
7.5.0.1.ifix2-7.5.1.2.ifix1.7.5.2.2-ifix1

Rational Method Composer 7.5.0.1 7.5.0.1-ifix2 PI28819 
7.5.0.1.ifix2-7.5.1.2.ifix1.7.5.2.2-ifix1

Workarounds and Mitigations

Disable SSLv3

IBM recommends that you review your entire environment to identify areas that
enable the SSLv3 protocol and take appropriate mitigation and remediation 
actions. The most immediate mitigation action that can be taken is disabling 
SSLv3.

SSL secured communication occurs between client and server, for example 
between a Web browser and a Web server on which the RMC site is published. To
mitigate this issue and protect against POODLE attack, it is enough to secure
either the client or the server (or both). One suggestion is to secure the Web
server. This will allow you some flexibility in terms of addressing this issue
as applicable in your environments while at the same time maintaining the 
ability of software client applications/components to access servers 
configured with different levels of security.

See the following links for information on how to disable SSLv3 in Apache 
Tomcat, IBM WebSphere and IBM HTTP Server.

    IBM WebSphere: http://www.ibm.com/support/docview.wss?uid=swg21687173

    IBM HTTP Server: http://www.ibm.com/support/docview.wss?uid=swg21687172

    Apache Tomcat: https://access.redhat.com/solutions/1232233

Disabling SSLv3 will affect RMC publised war/ear

When the user disable the SSLv3 in the service environment, it may cause the 
servlet search and RSS feed to fail (Only appeared when the J2EE server use 
the IBM JRE until now). When this happens, you can try the mitigation 
below,but we strongly suggest follow the workaround below, or install the iFix
update in the above links.

Mitigations

Change the server IBM JRE to Oracle JRE temporary.(If you are using 
Websphere,we suggest you do not follow this mitigation)

Tomcat:how to change jre

WORKAROUND:

Publish RMC site as static site .

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

Acknowledgement

None

Change History

* 03 October 2014: Original copy 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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