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AUSCERT External Security Bulletin Redistribution
ESB-2015.0780
Security Bulletin: Vulnerability in IBM WebSphere Application Server
affects IBM WebSphere Portal (CVE-2015-0138)
30 March 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Portal
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
i5/OS
z/OS
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-0138
Reference: ESB-2015.0776
ESB-2015.0763
ESB-2015.0762
ESB-2015.0760
ESB-2015.0644
ESB-2015.0632
ESB-2015.0589
ESB-2015.0542
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21699963
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Security Bulletin: Vulnerability in IBM WebSphere Application Server
affects IBM WebSphere Portal (CVE-2015-0138)
Document information
More support for:
WebSphere Portal
Software version:
6.1, 7.0, 8.0, 8.5
Operating system(s):
AIX, HP-UX, IBM i, Linux, Solaris, Windows, i5/OS, z/OS
Reference #:
1699963
Modified date:
2015-03-27
Security Bulletin
Summary
The "FREAK: Factoring Attack on RSA-EXPORT keys" TLS/SSL client and server
vulnerability affects IBM WebSphere Application Server that is used by
IBM WebSphere Portal.
Vulnerability Details
CVEID: CVE-2015-0138
DESCRIPTION: A vulnerability in various IBM SSL/TLS implementations could
allow a remote attacker to downgrade the security of certain SSL/TLS
connections. An IBM SSL/TLS client implementation could accept the use of
an RSA temporary key in a non-export RSA key exchange ciphersuite. This
could allow a remote attacker using man-in-the-middle techniques to
facilitate brute-force decryption of TLS/SSL traffic between vulnerable
clients and servers.
This vulnerability is also known as the FREAK attack.
CVSS Base Score: 4.3
CVSS Temporal Score: See
http://exchange.xforce.ibmcloud.com/#/vulnerabilities/100691 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Affected Products and Versions
Principal Product and Version(s)
IBM WebSphere Portal version 6.1, 7.0, 8.0, and 8.5
Affected Supporting Product and Version
IBM WebSphere Application Server version 6.1, 7.0, 8.0, 8.5
For earlier unsupported versions of the above products IBM recommends
upgrading to a fixed, supported version of the products.
Remediation/Fixes
Please consult the security bulletin Security Bulletin: Vulnerability with
RSA Export Keys may affect IBM WebSphere Application Server (CVE-2015-0138)
for vulnerability details and information about fixes.
Workarounds and Mitigations
None
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Important note
IBM strongly suggests that all System z customers be subscribed to the
System z Security Portal to receive the latest critical System z security
and integrity service. If you are not subscribed, see the instructions
on the System z Security web site. Security and integrity APARs and
associated fixes will be posted to this portal. IBM suggests reviewing
the CVSS scores and applying all security or integrity fixes as soon as
possible to minimize any potential risk.
References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
The vulnerability was reported to IBM by Karthikeyan Bhargavan of the
PROSECCO team at INRIA
Change History
27 March 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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