Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2015.0380
Security Bulletin: TLS fallback protection is available in
IBM DataPower appliances
17 February 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM DataPower Gateways
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2014-3566
Reference: ASB-2014.0122
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21696753
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: TLS fallback protection is available in IBM DataPower
appliances
Security Bulletin
Document information
More support for:
IBM DataPower Gateways
General
Software version:
5.0.0, 6.0.0, 6.0.1, 7.0.0
Operating system(s):
Firmware
Reference #:
1696753
Modified date:
2015-02-16
Summary
TLS Fallback signaling cipher suite value for preventing protocol downgrade
attacks (TLS_FALLBACK_SCSV) is an update to the TLS protocol, currently in an
IETF draft document. This has been incorporated into IBM DataPower appliances.
Vulnerability Details
DataPower has added support for TLS_FALLBACK_SCSV to allow applications to
block the ability for a MITM attacker to force a protocol downgrade. Some
client applications (such as browsers) will reconnect using a downgraded
protocol to work around interoperability bugs in older servers. This could be
exploited by an active man-in-the-middle to downgrade connections to a lower
protocol (like SSL 3.0) even if both sides of the connection support higher
protocols. Lower protocols such as SSL 3.0 contain a number of weaknesses
including POODLE (CVE-2014-3566).
Affected Products and Versions
TLS fallback protection is not available in all IBM DataPower products and
versions through 6.0.0.11, 6.0.1.7, 7.0.0.4. Note that 7.1.x versions have
this support.
Remediation/Fixes
TLS fallback protection is available in 6.0.0.12, 6.0.1.8, 7.0.0.5, and
7.1.0.0. Refer APAR IT05922 for URLs to download the fix.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
References
Complete CVSS Guide
On-line Calculator V2
Vulnerability in SSLv3 affects DataPower (CVE-2014-3566)
https://tools.ietf.org/html/draft-ietf-tls-downgrade-scsv-00
https://www.openssl.org/~bodo/ssl-poodle.pdf
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
11 Feb 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.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=N7NE
-----END PGP SIGNATURE-----