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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.1127
    A vulnerability has been identified in IBM Sterling Connect:Direct
                               24 April 2015

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

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

Product:           IBM Sterling Direct:Connect
Publisher:         IBM
Operating System:  Windows
                   HP NonStop
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=swg21882577
   http://www-01.ibm.com/support/docview.wss?uid=swg21883400

Comment: This bulletin contains two (2) IBM security advisories.

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

Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Sterling 
Connect:Direct for Microsoft Windows (CVE-2015-2808)

Security Bulletin

Document information

More support for:

Sterling Connect:Direct for Microsoft Windows

Software version:

4.5, 4.5.01, 4.6, 4.7

Operating system(s):

Windows

Reference #:

1882577

Modified date:

2015-04-23

Summary

The RC4 "Bar Mitzvah Attack" for SSL/TLS affects IBM Sterling Connect:Direct 
for Microsoft Windows.

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 Sterling Connect:Direct for Microsoft Windows 4.7.0 and earlier.

Remediation/Fixes

IBM Sterling Connect:Direct for Microsoft Windows by default disables the RC4
stream cipher. If you enabled the RC4 stream cipher you are exposed to the RC4
Bar Mitzvah Attack for SSL/TLS. 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.

To disable RC4 stream ciphers, open the CD Secure+ Admin Tool and go through 
the list of node entries. For each entry, go to its TLS/SSL Protocol > TLS/SSL
Options tab and remove any RC4 stream cipher from the list shown in the 
Enabled box.

You should verify applying this configuration change does not cause any 
compatibility issues.

Note that the remaining available ciphers are generally CBC ciphers. CBC 
ciphers are vulnerable to CVE-2011-3389 (BEAST Attack). While the previous 
recommendation to mitigate CVE-2011-3389 was to not use CBC ciphers, there is
now a fix available to mitigate CVE-2011-3389. Therefore IBM recommends to 
apply the following fix in addition to disabling RC4 stream ciphers:

Product 						VRMF 	APAR 	Remediation/First Fix

IBM Sterling Connect:Direct for Microsoft Windows 	4.5.00 	IT08243 Apply 4.5.00 patch 056, available on IWM

IBM Sterling Connect:Direct for Microsoft Windows 	4.5.01 	IT08243 Apply 4.5.01 patch 022, available on IWM

IBM Sterling Connect:Direct for Microsoft Windows 	4.6.0 	IT08243 Apply 4.6.0.5_iFix010, available on Fix Central

IBM Sterling Connect:Direct for Microsoft Windows 	4.7.0 	IT08243 Apply 4.7.0.3_iFix005, available on Fix Central

For older unsupported versions IBM recommends upgrading to a fixed, supported
version of the product.

Workarounds and Mitigations

None

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

Change History

23 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.

- ----------------------------------------------------------------------------

Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Sterling 
Connect:Direct for HP NonStop (CVE-2015-2808)

Security Bulletin

Document information

More support for:

Sterling Connect:Direct for HP NonStop

Software version:

3.5, 3.6

Operating system(s):

HP NonStop

Software edition:

All Editions

Reference #:

1883400

Modified date:

2015-04-23

Summary

The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM Sterling Connect:Direct for
HP NonStop.

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 Sterling Connect:Direct for HP NonStop 3.5.00

IBM Sterling Connect:Direct for HP NonStop 3.5.01

IBM Sterling Connect:Direct for HP NonStop 3.6.0

Remediation/Fixes

The recommended solution is to apply the fix as soon as practical. Please see
below for information about the available fixes.

VRMF 	APAR 	Remediation/First Fix

3.5.00 	IT08228 Apply 3.5.00 maintenance dated April 23, 2015, available on IWM

3.5.01 	IT08228 Apply 3.5.01 maintenance dated April 23, 2015, available on IWM

3.6.0 	IT08228 Apply 3.6.0.1, iFix 021, available on Fix Central

You should verify that applying this configuration change does not cause any 
compatibility issues.

Workarounds and Mitigations

Deselect RC4 ciphers if they are specified in the Secure+ configuration. To 
avoid production outages when switching to another cipher, coordinate the 
configuration change to an agreed cipher with the security administrator of 
each remote node with which you use Secure+.

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

Change History

23 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.

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

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