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ESB-2016.0683 - [Win][Linux] IBM Rational Service Tester for SOA Quality: Access privileged data - Remote/unauthenticated

Date: 14 March 2016
References: ESB-2015.3119  ESB-2016.0214  ESB-2016.0684  

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

                               ESB-2016.0683
        Security Bulletin: A vulnerbility in Bouncy Castle affects
                 Rational Service Tester (CVE-2015-7940 )
                               14 March 2016

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

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

Product:           IBM Rational Service Tester for SOA Quality
Publisher:         IBM
Operating System:  Linux variants
                   Windows
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-7940  

Reference:         ESB-2016.0214
                   ESB-2015.3119

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg21978823

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

Security Bulletin: A vulnerbility in Bouncy Castle affects Rational Service
Tester (CVE-2015-7940 )

Security Bulletin

Document information

More support for:

Rational Service Tester for SOA Quality

Test Execution

Software version:

8.2, 8.2.0.1, 8.2.0.2, 8.2.0.3, 8.2.0.4, 8.2.0.5, 8.2.0.6, 8.2.1, 8.2.1.1,
8.2.1.2, 8.2.1.3, 8.2.1.4, 8.2.1.5, 8.3, 8.3.0.1, 8.3.0.2, 8.3.0.3, 8.5,
8.5.0.1, 8.5.0.2, 8.5.1, 8.5.1.1, 8.5.1.2, 8.5.1.3, 8.6, 8.6.0.1, 8.6.0.2,
8.7, 8.7.0.1, 8.7.0.2, 8.7.1, 8.7.1.1

Operating system(s):

Linux, Windows

Reference #:

1978823

Modified date:

2016-03-11

Summary

Bouncy Castle could allow a remote attacker to obtain sensitive information,
caused by an invalid curve attack. An attacker could exploit this
vulnerability to extract private keys used in elliptic curve crytpography and
obtain sensitive information.

Vulnerability Details

CVEID:

CVE-2015-7940

DESCRIPTION:

Bouncy Castle could allow a remote attacker to obtain sensitive information.
An attacker could exploit this vulnerability using an invalid curve attack to
extract private keys used in elliptic curve cryptography and obtain sensitive
information.

CVSS Base Score: 5.3

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/107739

for the current score

CVSS Environmental Score*: Undefined

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

Affected Products and Versions

RST versions 8.2.*, 8.3.*, 8.5.*, 8.6.*, 8.7.*.

Remediation/Fixes

It is strongly recommended to upgrade to RPT version 9.0.

For older releases, you can alternatively update the Bouncy Castle library
manually:

1) Download the bouncy castle version 1.5.3 ( the jar can be downloaded here

https://www.bouncycastle.org/download/jce-jdk13-154.jar ).

2) Locate the previous bouncy castle librarie delivered, this will be
typically at the following path:

INSTALLATION_DIRECTORY/IBM_SHARED_PLUGINS/plugins/com.ibm.rational.ttt.common.models.core_plugin_version/lib/approvedbouncy

For example::

C:\Program
Files\IBM\IBMIMSharedRPT8702\plugins\com.ibm.rational.ttt.common.models.core_8.5.210.v20150622_1524\lib\approvedbouncy

for RPT v8.7.0.2.

3) Rename the bouncy castle jar version 1.5.3 downloaded to the name of the
previous delivered jar ( jce-jdk13-134.jar ).

4) Replace the old jar with the new one.

Workarounds and Mitigations

None.

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References

Complete CVSS v3 Guide

On-line Calculator v3

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

*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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