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AUSCERT External Security Bulletin Redistribution
ESB-2014.2485
Security Bulletin: TLS padding vulnerability affects TPF
Toolkit (CVE-2014-8730)
22 December 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM TPF Toolkit
Publisher: IBM
Operating System: Windows
Impact/Access: Access Privileged Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2014-8730
Reference: ESB-2014.2482
ESB-2014.2480
ESB-2014.2479
ESB-2014.2478
ESB-2014.2468
ESB-2014.2466
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21693330
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Security Bulletin: TLS padding vulnerability affects TPF Toolkit
(CVE-2014-8730)
Document information
More support for:
IBM TPF Toolkit
IDE
Software version:
3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4,
4.2.0, 4.2.1, 4.2.2
Operating system(s):
Windows
Reference #:
1693330
Modified date:
2014-12-19
Security Bulletin
Summary
Transport Layer Security (TLS) padding vulnerability via a POODLE (Padding
Oracle On Downgraded Legacy Encryption) like attack affects TPF Toolkit.
Vulnerability Details
CVE-ID: CVE-2014-8730
DESCRIPTION: Product could allow a remote attacker to obtain sensitive
information, caused by the failure to check the contents of the padding bytes
when using CBC cipher suites of some TLS implementations. A remote user with
the ability to conduct a man-in-the-middle attack could exploit this
vulnerability via a POODLE (Padding Oracle On Downgraded Legacy Encryption)
like attack to decrypt sensitive information and calculate the plaintext of
secure connections.
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99216 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
TPF Toolkit 3.6.x, 4.0.x, and 4.2.x
Remediation/Fixes
All current versions of TPF Toolkit ship JREs that are not impacted by this
vulnerability. However, TPF Toolkit provides a Remote System Explorer (RSE)
daemon that runs on Linux for System z. This daemon relies on the Java that is
installed on that system. Ensure that the Java level currently installed on
your Linux for System z system is up to date. The minimum level of Java that
is required includes the fix for vulnerability CVE-2013-0169.
Workarounds and Mitigations
None
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References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
19 December 2014: 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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