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AUSCERT External Security Bulletin Redistribution
ESB-2015.1952
Security Bulletin: Vulnerability with Diffie-Hellman ciphers may affect IBM
Infosphere BigInsights (CVE-2015-4000)
24 July 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Infosphere BigInsights
Publisher: IBM
Operating System: Red Hat
SUSE
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-4000
Reference: ASB-2015.0070
ASB-2015.0066
ESB-2015.1510
ESB-2015.1486
ESB-2015.1470
ESB-2015.1469
ESB-2015.1466
ESB-2015.1463
ESB-2015.1455.2
ESB-2015.1454.2
ESB-2015.1453.2
ESB-2015.1452
ESB-2015.1445
ESB-2015.1443
ESB-2015.1432
ESB-2015.1425
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21961697
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Security Bulletin: Vulnerability with Diffie-Hellman ciphers may affect IBM
Infosphere BigInsights (CVE-2015-4000)
Security Bulletin
Document information
More support for:
IBM BigInsights
Software version:
1.1.0, 1.2.0, 1.3.0, 1.4.0, 2.0.0, 2.1.0, 2.1.1, 2.1.2, 3.0, 3.0.0.1, 3.0.0.2,
4.0.0
Operating system(s):
Linux Red Hat - pSeries, Linux Red Hat - xSeries, Linux SUSE - xSeries
Software edition:
Basic Edition, Community Edition, Enterprise Edition, Quick Start Edition
Reference #:
1961697
Modified date:
2015-07-22
Summary
The Logjam Attack on TLS connections using the Diffie-Hellman (DH) key
exchange protocol affects IBM Infosphere BigInsights.
Vulnerability Details
CVEID: CVE-2015-4000
DESCRIPTION: The TLS protocol could allow a remote attacker to obtain
sensitive information, caused by the failure to properly convey a DHE_EXPORT
ciphersuite choice. An attacker could exploit this vulnerability using
man-in-the-middle techniques to force a downgrade to 512-bit export-grade
cipher. Successful exploitation could allow an attacker to recover the session
key as well as modify the contents of the traffic. This vulnerability is
commonly referred to as "Logjam".
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/103294 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Affected Products and Versions
IBM InfoSphere BigInsights 1.1.0, 1.2.0, 1.3.0,1.4.0, 2.0, 2.1, 2.1.2, 3.0,
3.0.0.1, 3.0.0.2, 4.0
Remediation/Fixes
Update JVM as a fix for all affected releases of BI.
Workarounds and Mitigations
For BI 3.x or earlier
1. Upgrade to a Java version that corrects the vulnerability
To obtain a fix pack, go to
http://www.ibm.com/developerworks/java/jdk/linux/download.html and download an
updated edition of Java for Linux, Platform: 64-bit AMD/Opteron/EM64T
BigInsights products use:
Java SE Version 7 for BI 3.x
IBM SDK, Java Technology Edition, Version 7, Release 1, Service
Refresh 3, Fix Pack 1
IBM SDK, Java Technology Edition, Version 7, Service Refresh 9, Fix
Pack 1
Java SE Version 6 for BI versions earlier than 3.x
IBM SDK, Java Technology Edition, Version 6.0.1 (J9 VM2.6), Service
Refresh 8, Fix Pack 5
IBM SDK, Java Technology Edition, Version 6, Service Refresh 16, Fix
Pack 5
2. To confirm that vulnerability does not exist
After updating the Java version
1. Enable https and configure with self created certificate
2. Using Firefox 38.0.1. ESR or later, you will not see an error similar to
the attachment, check_if_vulnerable.png
For BI 4.0
Knox
1. Upgrade to openjdk java version "1.7.0_79" (critical security upgrade)
yum install java-1.7.0-openjdk-devel java-1.7.0-openjdk
2. Modify /etc/ambari-server/conf/ambari.properties for ambari to pick up
openjdk-1.7.0.79
java.home=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.79.x86_64
3. Stop Knox server from Ambari
4. Backup your script, /usr/iop/current/knox-server/bin/gateway.sh
5. Update /usr/iop/current/knox-server/bin/gateway.sh with "gateway.sh" from
attachments
6. Re-start Knox server from Ambari
Ambari
If only using ambari-server setup-security to set SSL self signed (non CA
certificate), follow these steps:
1. From Ambari server node command line, run: "ambari-server stop"
2. Backup your script, /var/lib/ambari-agent/ambari-env.sh
3. Upgrade to openjdk java version "1.7.0_79" (critical security upgrade)
4. Update /var/lib/ambari-agent/ambari-env.sh with "ambari-env.sh" from
attachments
5. Start Ambari server, run: "ambari-server start"
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References
Complete CVSS v2 Guide
On-line Calculator v2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
22 July 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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