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ESB-2016.0508 - [Win][Appliance] IBM WebSphere Cast Iron Cloud integration: Multiple vulnerabilities

Date: 26 February 2016
References: ESB-2016.0046  ESB-2016.0047  ASB-2016.0004  ESB-2016.0499  ESB-2016.0516  ESB-2016.0518  ESB-2016.0519  ESB-2016.0521  ESB-2016.0522  ESB-2016.0523  
ESB-2016.0525  

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

                               ESB-2016.0508
    Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect
            WebSphere Cast Iron (CVE-2015-7575, CVE-2016-0448)
                             26 February 2016

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

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

Product:           IBM WebSphere Cast Iron Cloud integration
Publisher:         IBM
Operating System:  Network Appliance
                   Windows
Impact/Access:     Access Privileged Data         -- Remote with User Interaction
                   Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-0448 CVE-2015-7575 

Reference:         ASB-2016.0004
                   ESB-2016.0499
                   ESB-2016.0047
                   ESB-2016.0046

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21977301

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

Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect WebSphere
Cast Iron (CVE-2015-7575, CVE-2016-0448)

Security Bulletin

Document information

More support for:

WebSphere Cast Iron Cloud integration

Software version:

6.1.0.9, 6.1.0.15, 6.3, 6.3.0.1, 6.3.0.2, 6.4.0.0, 6.4.0.1, 7.0.0, 7.0.0.1,
7.0.0.2, 7.0.0.3, 7.5.0.0, 7.5.0.1

Operating system(s):

Firmware, Windows

Reference #:

1977301

Modified date:

2016-02-25

Summary

There are multiple vulnerabilities in IBM SDK Java Technology Edition,
Version JAVA 7 SR9 (and earlier) AND JAVA 6 SR16 (and earlier) that is used
by WebSphere Cast Iron. These issues were disclosed as part of the IBM Java
SDK updates in January 2016 and includes the vulnerability commonly referred
to as SLOTH.

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. This vulnerability is commonly referred to as
SLOTH.

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)

CVEID:

CVE-2016-0448

DESCRIPTION:

An unspecified vulnerability in Oracle Java SE and Java SE Embedded related
to the JMX component could allow a remote attacker to obtain sensitive
information resulting in a partial confidentiality impact using unknown
attack vectors.

CVSS Base Score: 4

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/109949

for the current score

CVSS Environmental Score*: Undefined

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

Affected Products and Versions

WebSphere Cast Iron v 7.5.0.x,

WebSphere Cast Iron v 7.0.0.x,

WebSphere Cast Iron v 6.4.0.x

WebSphere Cast Iron v 6.3.0.x

WebSphere Cast Iron v 6.1.0.x

Remediation/Fixes



Product              VRMF     APAR     Remediation/First Fix
Cast Iron Appliance  7.5.*    LI78920  iFix 7.5.0.1-CUMUIFIX-003
Cast Iron Appliance  7..0*    LI78920  iFix 7.0.0.2-CUMUIFIX-025
Cast Iron Appliance  6.4.0.x  LI78920  iFix 6.4.0.1-CUMUIFIX-035
Cast Iron Appliance  6.3.0.x  LI78920  iFix 6.3.0.2-CUMUIFIX-019
Cast Iron Appliance  6.1.0.x  LI78920  iFix 6.1.0.15-CUMUIFIX-025

Workarounds and Mitigations

For CVE-2015-7575:

Users of Java 7 and later can address the issue by updating the
/jre/lib/security/java.security file as follows (both steps are required):

 Add MD5 to the jdk.certpath.disabledAlgorithms property - e.g.
jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024,MD5

 Add MD5withRSA to the jdk.tls.disabledAlgorithms property - e.g.
jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768,MD5withRSA

Java 6 requires code changes in the JSSE component in addition to the
java.security file modifications, so upgrading the JDK is the only solution.

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References

Complete CVSS v2 Guide


On-line Calculator v2


Complete CVSS v3 Guide


On-line Calculator v3

IBM Java SDK Security Bulletin

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris,
France.

Change History

<2016/02/25> : 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.

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

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