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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.0130
         Vulnerability in MD5 Signature and Hash Algorithm affects
                           IBM Sterling Connect
                              18 January 2016

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

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

Product:           IBM Sterling Connect
Publisher:         IBM
Operating System:  Windows
                   AIX
                   HP-UX
                   Linux variants
                   Solaris
Impact/Access:     Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-7575  

Reference:         ESB-2016.0047

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21974461
   http://www.ibm.com/support/docview.wss?uid=swg21974473

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

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

Security Bulletin: Vulnerability in MD5 Signature and Hash Algorithm affects
IBM Sterling Connect:Direct for Microsoft Windows (CVE-2015-7575)

Security Bulletin

Document information

More support for:

Sterling Connect:Direct for Microsoft Windows

Software version:

4.5, 4.5.01, 4.6

Operating system(s):

Windows

Reference #:

1974461

Modified date:

2016-01-15

Summary

The MD5 "SLOTH" vulnerability on TLS 1.2 affects IBM Sterling Connect:Direct
for Microsoft Windows.

Vulnerability Details

CVEID:

CVE-2015-7575

DESCRIPTION:

The TLS protocol could allow weaker than expected security caused by a
collision attack when using the MD5 hash function for signing a
ServerKeyExchange message during a TLS handshake. An attacker could exploit
this vulnerability using man-in-the-middle techniques to impersonate a TLS
server and obtain credentials.

CVSS Base Score: 7.1

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/109415

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N)

Affected Products and Versions

IBM Sterling Connect:Direct for Microsoft Windows 4.6.0 and earlier.

Remediation/Fixes

The issue had already been resolved in earlier fix packs/patches. IBM
recommends to apply the latest maintenance.

Product                                            VRMF    APAR     Remediation/First Fix
IBM Sterling Connect:Direct for Microsoft Windows  4.5.00  IT13124  Apply 4.5.00 patch 053, available on IWM
IBM Sterling Connect:Direct for Microsoft Windows  4.5.01  IT13124  Apply 4.5.01 patch 019, available on IWM
IBM Sterling Connect:Direct for Microsoft Windows  4.6.0   IT13124  Apply 4.6.0.4_iFix002, available on Fix Central

For older versions/releases IBM recommends upgrading to a fixed, supported
version/release 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 v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

Reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France.

Change History

15 January 2016: 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 MD5 Signature and Hash Algorithm affects
IBM Sterling Connect:Express for UNIX (CVE-2015-7575)

Security Bulletin

Document information

More support for:

Sterling Connect:Express for UNIX

Software version:

1.4, 1.5

Operating system(s):

AIX, HP-UX, Linux, Solaris

Reference #:

1974473

Modified date:

2016-01-15

Summary

The MD5 SLOTH vulnerability on TLS 1.2 affects IBM Sterling Connect:Express
for UNIX.

Vulnerability Details

CVEID:

CVE-2015-7575

DESCRIPTION:

The TLS protocol could allow weaker than expected security caused by a
collision attack when using the MD5 hash function for signing a
ServerKeyExchange message during a TLS handshake. An attacker could exploit
this vulnerability using man-in-the-middle techniques to impersonate a TLS
server and obtain credentials.

CVSS Base Score: 7.1

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/109415

for the current score

CVSS Environmental Score*: Undefined

CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N)

Affected Products and Versions

IBM Sterling Connect:Express for UNIX 1.4.6

- - All versions prior to 1.4.6.1 iFix 146-112

IBM Sterling Connect:Express for UNIX 1.5.0.12

- - All versions prior to 1.5.0.12 iFix 150-1205

Remediation/Fixes

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

VRMF      Remediation
1.4.6     Please contact your local IBM Remote Technical Support Center to request Connect:Express 1.4.6.1 iFix 146-113
1.5.0.12  Apply 1.5.0.12 iFix 150-1206, available on Fix Central

Workarounds and Mitigations

None, fix must be applied.

Get Notified about Future Security Bulletins

Subscribe to

My Notifications

to be notified of important product support alerts like this.

References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

Reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France

Change History

15 January 2016: 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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