-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1992
    Security Bulletin: Vulnerability in SSLv3 affects IBM TXSeries for
            Multiplatforms Version 7.1 and 8.1 (CVE-2014-3566)
                              29 October 2014

===========================================================================

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

Product:           IBM TXSeries
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Access Confidential Data -- Remote with User Interaction
                   Reduced Security         -- Remote with User Interaction
Resolution:        Mitigation
CVE Names:         CVE-2014-3566  

Reference:         ASB-2014.0122
                   ESB-2014.1858

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21688408

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: Vulnerability in SSLv3 affects IBM TXSeries for 
Multiplatforms Version 7.1 and 8.1 (CVE-2014-3566)

Security Bulletin

Document information

More support for:

TXSeries

Documentation

Software version:

7.1, 8.1

Operating system(s):

AIX, HP Itanium, HP-UX, Linux/x86, Solaris, Windows

Reference #:

1688408

Modified date:

2014-10-28

Summary

SSLv3 contains a vulnerability that has been referred to as the Padding Oracle
On Downgraded Legacy Encryption (POODLE) attack. The document describes 
disabling SSLv3 usage with TXSeries. 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.

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:N/C:P/I:N/A:N)

Affected Products and Versions

TXSeries for Multiplatforms V7.1, V8.1

Remediation/Fixes

None

Workarounds and Mitigations

Disable SSL v3 as default when using TXSeries IPIC configuration with SSL.

TXSeries for Multiplatforms provides an optional configurable capability to 
enable SSL for its IPIC communication protocol. In this scenario the default 
protocols which are enabled are SSL v3, TLS 1.0 and TLS 1.1.

TXSeries V7.1.0.4 or higher will support disabling SSLV3 when it is configured
with GSKit version 8.x. The instructions below provide guidance to disable SSL
v3.

TXSeries for Multiplatforms V7.1

If you are on TXSeries for Multiplatforms V7.1, you need to upgrade to Fixpack
4 or higher. Lower fix pack levels do not support disabling SSL v3.

Steps to disable SSL v3 (TXSeries V7.1.0.4 or higher)

1. Stop the TXSeries region.

2. If you have not configured your region to use GSKit version 8.x, set the 
below variable in the regions environment file. CICS_GSKIT_VERSION=8

If your region is already configured with GSKit version 8.x then go to step 3.

(By Default TXSeries 7.1 support GSKit version 7.x. Refer to the TXSeries 
infocenter for further configuration details.)

3. Set the below environment variable in the regions environment file. 
CICS_SP800_131MODE=SP800_131MODE

4. Restart the TXSeries region.

Note: This setting will set TLS 1.2 protocol and disable SSL v3, so only the 
TLS protocols TLS 1.0, TLS 1.1 and TLS1.2 are enabled for communication.

TXSeries for Multiplatforms V8.1

Steps to disable SSL v3 (TXSeries V8.1.0.0 or higher)

1. Stop the TXSeries region.

2. Set the below environment variable in the regions environment file

CICS_SP800_131MODE=SP800_131MODE

3. Restart the TXSeries region.

Note: This setting will set TLS 1.2 protocol as default and disable SSL v3, so
only the TLS protocols TLS 1.0, TLS 1.1 and TLS 1.2 are enabled for 
communication.

Setting this to SP800_131MODE will enforce TLS processing. Please refer to 
TXSeries infocenter for further details.

Disable SSL v3 as default when using TXSeries Web Administration Console in 
HTTPS mode.

TXSeries Web Administration console can be configured to run in HTTPS mode, In
this mode the default value is set to SSL v3. The instructions below provide 
guidance to disable SSL v3 for TXSeries Web Administration Console when 
operating in HTTPS mode.

TXSeries for Multiplatforms V7.1

TXSeries Web Administration Console runs on TXSeries Lightweight 
Infrastructure web server,

The SSL configuration of light-weight infrastructure is controlled by the 
config.properties and webcontainer.properties files in the conf directory of 
<TXInstall-dir/wui>. The property com.ibm.ssl.protocol has to be updated to 
specify TLS as the protocol to be used

Steps to disable SSL v3 on LWI webserver are as follows.

config.properties
The properties of interest in the config.properties file are as shown with the 
values:
# SSL support
com.ibm.pvc.webcontainer.ssl.configfile=../../conf/sslconfig
com.ibm.pvc.webcontainer.port.secure=443

webcontainer.properties
The properties of interest in the webcontainer.properties file are as shown 
with their values:

com.ibm.ssl.keyStorePassword.443=[xor] 9MW08GTL+uut1b0\=
com.ibm.ssl.clientAuthentication.443=false
com.ibm.ssl.trustStorePassword.443=[xor] 9MW08GTL+uut1b0\=
com.ibm.ssl.trustStore.443=../security/keystore/ibmjsse2.jts
sslEnabled=true
com.ibm.ssl.keyStore.443=../security/keystore/ibmjsse2.jks
# Specifies the protocol to use
com.ibm.ssl.protocol.443=TLS

TXSeries for Multiplatforms V8.1

TXSeries Web Administration Console and Inbound SOAP support use IBM Websphere
Application Server Liberty profile as the web server.

The Liberty profile offer a minimal SSL configuration that allow a user to 
only provide a keystore configuration and the rest of the SSL information is 
filled in by the runtime. The minimal configuration may look like this in the
server.xml file:

<keyStore id="defaultKeyStore" password="yourPassword" />

A ssl element can be added so the default ssl configuration will not use 
SSLv3. The sslProtocol attribute in the ssl element defines what protocol is 
used, setting it to TLS will override the default.

<ssl id="defaultSSLConfig"
keyStoreRef="defaultKeyStore"
sslProtocol="TLS" />
<keyStore id="defaultKeyStore"
password="yourPassword" />

If using custom ssl configurations besides the minimal configuration the 
protocol element needs to be set for each ssl element that is in the 
server.xml file. For example

<ssl id="myCustomSSLConfig"
keyStoreRef="defaultKeyStore"
trustStoreRef="defaultTrustStore"
clientAuthentication="true"
sslProtocol="TLS" />

IBM recommends that you review your entire environment to identify other areas
that enable SSLv3 protocol and take appropriate mitigation (such as disabling
SSLv3) and remediation actions.

References

Complete CVSS Guide

On-line Calculator V2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

None

*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.

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=+/wt
-----END PGP SIGNATURE-----