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AUSCERT External Security Bulletin Redistribution
ESB-2016.0475
Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect IBM
Rational Application Developer for WebSphere Software (CVE-2015-7575,
CVE-2016-0466, CVE-2016-0475, CVE-2016-0448)
24 February 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational Application Developer for WebSphere Software
Publisher: IBM
Operating System: Linux variants
OS X
Windows
Impact/Access: Access Privileged Data -- Remote with User Interaction
Modify Arbitrary Files -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2016-0475 CVE-2016-0466 CVE-2016-0448
CVE-2015-7575
Reference: ASB-2016.0004
ESB-2016.0468
ESB-2016.0467
ESB-2016.0049
ESB-2016.0047
ESB-2016.0046
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21976651
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Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect IBM
Rational Application Developer for WebSphere Software (CVE-2015-7575,
CVE-2016-0466, CVE-2016-0475, CVE-2016-0448)
Security Bulletin
Document information
More support for:
Rational Application Developer for WebSphere Software
General Information
Software version:
8.5, 8.5.1, 8.5.5, 8.5.5.1, 8.5.5.2, 8.5.5.3, 9.0, 9.0.1, 9.0.1.1, 9.0.1.2,
9.1, 9.1.0.1, 9.1.1, 9.1.1.1, 9.5, 9.5.0.1
Operating system(s):
Linux, OS X, Windows
Reference #:
1976651
Modified date:
2016-02-23
Summary
There are multiple vulnerabilities in IBM SDK Java Technology Edition,
Versions 7 and 8 that are used by IBM Rational Application Developer for
WebSphere Software. 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.
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-2016-0466
DESCRIPTION:
An unspecified vulnerability related to the JAXP component could allow a
remote attacker to cause a denial of service.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/109948
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID:
CVE-2016-0475
DESCRIPTION:
An unspecified vulnerability related to the Libraries component has partial
confidentiality impact, partial integrity impact, and no availability impact.
CVSS Base Score: 5.8
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/109946
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)
CVEID:
CVE-2016-0448
DESCRIPTION:
An unspecified vulnerability related to the JMX component could allow a
remote attacker to obtain sensitive information.
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
Rational Application Developer 9.5 and earlier
Remediation/Fixes
Update the IBM SDK, Java Technology Edition of the product to address this
vulnerability:
Product VRMF APAR Remediation/First Fix
Rational Application Developer 8.5 through 9.5 PI56998 For all versions, IBM SDK Java Technology Edition Critical Patch Update - January 2016. For the WebSphere Application Server 7.0 Test Environment, apply WebSphere Application Server 7.0 Test Environment Extension Fix Pack 39u1 (7.0.0.39u1) For WebSphere Application Server versions 8.0 and 8.5, see Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect WebSphere Application Server January 2016 CPU (CVE-2016-0475, CVE-2016-0466, CVE-2015-7575, CVE-2016-0448)
Rational Agent Controller 7.0 through to 9.5 PI56998 Apply Rational Agent Controller Fixpack 1 Interim Fix 1 (9.5.0.1 iFix1) for 9.5.0
Rational Build Utility 8.5 through to 9.5 PI56998 For use on Windows or Linux: apply IBM SDK Java Technology Edition Critical Patch Update - January 2016 For use on System z: Version 8.5, 9.0 and 9.1: Apply the latest Java Technology Edition, V7.0.0. Version 9.5: Apply the latest Java Technology Edition, V8.0.0.
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
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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
IBM Java SDK Security Bulletin
Acknowledgement
CVE-2015-7575 was reported to IBM by Karthikeyan Bhargavan at INRIA in Paris,
France
Change History
23 February 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.
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