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AUSCERT External Security Bulletin Redistribution
ESB-2014.1998
Security Bulletin: Security vulnerabilities have been identified in IBM
WebSphere Sensor Events version 7 (CVE-2014-3566)
30 October 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Sensor Events
Publisher: IBM
Operating System: Windows
Impact/Access: Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Mitigation
CVE Names: CVE-2014-3566
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21688553
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Security Bulletin: Security vulnerabilities have been identified in IBM
WebSphere Sensor Events version 7 (CVE-2014-3566)
Security Bulletin
Document information
More support for:
WebSphere Sensor Events
Software version:
7.0
Operating system(s):
Windows
Software edition:
Advanced
Reference #:
1688553
Modified date:
2014-10-29
Summary
SSLv3 contains a vulnerability that has been referred to as the Padding Oracle
On Downgraded Legacy Encryption (POODLE) attack.
Support for SSL v3.0 remains widespread and many clients who support TLS
implement a protocol downgrade to work around bugs in HTTPS servers, therefore
browsers will retry failed connections with older protocol versions, including
SSL v3.0.
Because a network attacker can cause connection failures, the attacker can
trigger the use of SSL v3.0 and then exploit this issue.
Vulnerability Details
CVE ID: CVE-2014-3566
Description: Products that are bundled with IBM WebSphere Sensor events (IBM
WebSphere Application Server, IBM HTTP Server) could allow a remote attacker
to obtain sensitive information, caused by a design error when using the SSLv3
protocol. A remote user with the ability to conduct a man-in-the-middle attack
could exploit this vulnerability via a POODLE attack to decrypt SSL sessions
and access the plain text of encrypted connections.
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/97013 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Remediation/Fixes
None
Workarounds and Mitigations
To mitigate the issue, IBM recommends disabling SSL 3.0 support, or CBC-mode
ciphers with SSL 3.0, on both the client and server side. IBM WSE 7.0 source
code is not affected by this vulnerability directly, however some of the
products that are bundled with WSE 7.0 are.
All customers are advised to take following steps:
1) Disable SSL 3.0 support in your internet browser by using the following
instructions:
Mozilla Firefox
a. Install the Mozilla add-on called SSL Version Control
Or
a. Enter about:config into the navigation bar and press Enter.
b. Accept the warning and proceed.
c. Search for tls.
d. Change the value of security.tls.version.min from 0 to 1 (0 = SSL 3.0; 1 =
TLS 1.0).
Google Chrome
a. Run Chrome with the following command-line flag: --ssl-version-min=tls1
Internet Explorer
a. Go to Settings -> Internet Options -> Advanced Tab
b. Under Security, deselect SSLv3.
2) Disable SSL 3.0 support in IBM WebSphere Application Server using the
information provided in the following technote:
http://www-01.ibm.com/support/docview.wss?uid=swg21687173
3) Disable SSL 3.0 support in IBM HTTP Server using the information provided
in the following technote:
http://www-01.ibm.com/support/docview.wss?uid=swg21687172
References
Complete CVSS Guide
On-line Calculator V2
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.
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