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AUSCERT External Security Bulletin Redistribution
ESB-2015.1773
Security Bulletin: Vulnerability in Diffie-Hellman ciphers affects IBM
Content Collector for SAP Applications (CVE-2015-4000)
7 July 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Content Collector for SAP Applications
Publisher: IBM
Operating System: AIX
Linux variants
Solaris
Windows
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-4000
Reference: ASB-2015.0066
ESB-2015.1768
ESB-2015.1739
ESB-2015.1443
ESB-2015.1432
ESB-2015.1425
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21960718
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Security Bulletin: Vulnerability in Diffie-Hellman ciphers affects IBM
Content Collector for SAP Applications (CVE-2015-4000)
Document information
More support for:
Content Collector for SAP Applications
Software version:
2.2.0, 3.0.0, 4.0.0
Operating system(s):
AIX, Linux, Solaris, Windows
Reference #:
1960718
Modified date:
2015-07-06
Security Bulletin
Summary
The Logjam Attack on TLS connections using the Diffie-Hellman (DH) key
exchange protocol affects IBM Content Collector for SAP Applications
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 Content Collector for SAP Applications V2.2
IBM Content Collector for SAP Applications V3.0
IBM Content Collector for SAP Applications V4.0
Remediation/Fixes
IBM provides patches for the affected version. Follow the installation
instructions in the README files that is included in the patch.
Product VRMF APAR
IBM Content Collector for SAP Applications 2.2.0 HE12345
Remediation/First Fix
Apply JRE Update 2.2.0.2-ICCSAP-Server-JRE-6.0.16.5, and
2.2.0.2-ICCSAP-Client-JRE-6.0.16.5, which are available from Fix Central
For the download details, see
http://www.ibm.com/support/docview.wss?uid=swg24040225.
IBM Content Collector for SAP Applications 3.0.0 HE12346
Apply JRE Update 3.0.0.2-ICCSAP-Server-JRE-7.0.9.1, and
3.0.0.2-ICCSAP-Client-JRE-7.0.9.1, which are available from Fix Central
For the download details, see
http://www.ibm.com/support/docview.wss?uid=swg24040227.
IBM Content Collector for SAP Applications 4.0.0 HE12347
Apply JRE Update 4.0.0.0-ICCSAP-Base-JRE-7.0.9.1, which is available from
Fix Central
For the download details, see
http://www.ibm.com/support/docview.wss?uid=swg24040226.
You should verify applying this configuration change does not cause any
compatibility issues. If you change the default setting after applying the
fix, you will expose yourself to the attack described above. IBM recommends
that you review your entire environment to identify other areas where you
have enabled the Diffie-Hellman key-exchange protocol used in TLS and take
appropriate mitigation and remediation actions.
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alerts like this.
References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
Reported to IBM by The WeakDH team at https://weakdh.org
Change History
July 16, 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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