Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2015.2199
SA-2015-081: RSA BSAFE Micro Edition Suite, Crypto-C Micro Edition,
Crypto-J, SSL-J and SSL-C Multiple Vulnerabilities
21 August 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: RSA BSAFE Micro Edition Suite
RSA BSAFE Crypto-C Micro Edition
RSA BSAFE Crypto-J
RSA BSAFE SSL-J
RSA BSAFE SSL-C
Publisher: EMC
Operating System: Windows
Solaris
Red Hat
HP-UX
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-1787
Reference: ASB-2015.0070
ASB-2015.0044
ESB-2015.2170
ESB-2015.1903
ESB-2015.1200
ESB-2015.1022
ESB-2015.0678
- --------------------------BEGIN INCLUDED TEXT--------------------
ESA-2015-081: RSA BSAFE Micro Edition Suite, Crypto-C Micro Edition, Crypto-J,
SSL-J and SSL-C Multiple Vulnerabilities
EMC Identifier: ESA-2015-081
CVE Identifier: CVE-2015-0533, CVE-2015-0534, CVE-2015-0535, CVE-2015-0536,
CVE-2015-0537
Severity Rating: CVSS v2 Base Score: See below for individual scores for each
CVE
Affected Products:
RSA BSAFE Micro Edition Suite (MES) all 4.1.x versions prior to 4.1.3
RSA BSAFE Micro Edition Suite (MES) all 4.0.x versions prior to 4.0.8
RSA BSAFE Crypto-C Micro Edition (Crypto-C ME) 4.1
RSA BSAFE Crypto-C Micro Edition (Crypto-C ME) all versions prior to 4.0.4
RSA BSAFE Crypto-J all versions prior to 6.2
RSA BSAFE SSL-J all versions prior to 6.2
RSA BSAFE SSL-C all versions including 2.8.9
Unaffected Products:
RSA BSAFE Micro Edition Suite (MES) 4.1.3
RSA BSAFE Micro Edition Suite (MES) 4.0.8
RSA BSAFE Crypto-C Micro Edition (Crypto-C ME) 4.0.4
RSA BSAFE Crypto-J 6.2
RSA BSAFE SSL-J 6.2
Summary:
RSA announces security fixes to RSA BSAFE Micro Edition Suite, Crypto-C Micro
Edition, Crypto-J and SSL-J designed to address multiple vulnerabilities.
Details:
RSA BSAFE Micro Edition Suite, Crypto-C Micro Edition, Crypto-J, SSL-J and
SSL-C may be susceptible to the following potential vulnerabilities:
CVE-2015-0533: ECDHE silently downgrades to ECDH [Client]
When the RSA BSAFE MES or SSL-C implementation of the SSL/TLS protocol is
used, it may allow remote attackers to successfully perform an SSL handshake
using an ephemeral ECDH cipher suite with the server key exchange message
omitted. This effectively removes forward secrecy from the cipher suite
(similar to CVE-2014-3572).
CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Note: Affects MES and SSL-C versions listed above.
CVE-2015-0534: Certificate fingerprints can be modified
RSA BSAFE MES, Crypto-J and SSL-C versions as listed above does not enforce
certain constraints on certificate data, which potentially allows remote
attackers to defeat a fingerprint-based certificate-blacklist protection
mechanism by including crafted data within a certificate?s unsigned portion
(similar to CVE-2014-8275).
CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Note: Affects MES, Crypto-J, SSL-J and SSL-C versions listed above.
CVE-2015-0535: The FREAK (Factoring RSA Export Keys) attack
When the RSA BSAFE MES or SSL-C implementation of the SSL/TLS protocol is
used, the attacker can potentially conduct RSA-to-EXPORT_RSA downgrade attacks
against the client. The client would then accept the weak EXPORT-grade key,
allowing the attacker to factor it and decrypt communication between the
client and the server (similar to CVE-2015-0204).
CVSS v2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Note: Affects MES and SSL-C versions listed above.
CVE-2015-0536: A denial of service with Empty CKE with client auth and DHE
When the RSA BSAFE MES or SSL-C implementation of the SSL/TLS protocol is
used, it might be possible for a remote attacker to cause a denial of service
via a ClientKeyExchange message with a length of zero when client
authentication and Ephemeral Diffie-Hellman cipher suites are enabled (similar
to CVE-2015-1787).
CVSS v2 Base Score: 2.6 (AV:N/AC:H/Au:N/C:N/I:N/A:P)
Note: Affects MES and SSL-C versions listed above.
CVE-2015-0537: An integer underflow in Base64 decode implementation
An integer underflow in the base64-decoding implementation in RSA BSAFE MES,
Crypto-C ME and SSL-C may allow remote attackers to cause a denial of service
via a segmentation fault or an unexpected behavior via memory corruption
(similar to CVE-2015-0292).
CVSS v2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Note: Affects MES, Crypto-C ME and SSL-C versions listed above.
Recommendation:
RSA BSAFE Micro Edition Suite (MES) 4.0.8 and 4.1.3 contains fixes for
CVE-2015-0533, CVE-2015-0534, CVE-2015-0535, CVE-2015-0536, CVE-2015-0537
RSA BSAFE Crypto-C Micro Edition (Crypto-C ME) 4.0.4 contains the fix for
CVE-2015-0537.
RSA BSAFE Crypto-J 6.2 contains the fix for CVE-2015-0534
RSA BSAFE SSL-J 6.2 contains the fix for CVE-2015-0534
RSA recommends all customers upgrade to the versions listed above at the
earliest opportunity.
This advisory will be updated when the fixes are provided for RSA BSAFE
Crypto-C ME 4.1.x series.
RSA recommends all RSA BSAFE SSL-C customers upgrade to RSA BSAFE Micro
Edition Suite (MES) as per previous notifications about the End Of Life (EOL)
for BSAFE SSL-C.
The following workaround is available in BSAFE SSL-C 2.8.x for CVE-2015-0534:
Ensure that the application does not perform blacklisting using the bytes of
the entire certificate or a hash thereof.
Modify the blacklist comparison to use only the Issuer/Serial no. combination.
Obtaining Downloads:
To request your upgrade of the software, please call your local support
telephone number (contact phone numbers are available at
http://www.emc.com/support/rsa/contact/index.htm) for most expedient service.
Obtaining Documentation:
To obtain RSA documentation, log on to RSA SecurCare Online at
https://knowledge.rsasecurity.com and click Products in the top navigation
menu. Select the specific product whose documentation you want to obtain.
Scroll to the section for the product version that you want and click the set
link.
Severity Rating:
For an explanation of Severity Ratings, refer to the Knowledge Base Article,
?Security Advisories Severity Rating? at
https://knowledge.rsasecurity.com/scolcms/knowledge.aspx?solution=a46604 . RSA
recommends all customers take into account both the base score and any
relevant temporal and environmental scores which may impact the potential
severity associated with particular security vulnerability.
Obtaining More Information:
For more information about RSA products, visit the RSA web site at
http://www.rsa.com.
Getting Support and Service:
For customers with current maintenance contracts, contact your local RSA
Customer Support center with any additional questions regarding this RSA
SecurCare Note. For contact telephone numbers or e-mail addresses, log on to
RSA SecurCare Online at https://knowledge.rsasecurity.com, click Help &
Contact, and then click the Contact Us - Phone tab or the Contact Us - Email
tab.
General Customer Support Information:
http://www.emc.com/support/rsa/index.htm
RSA SecurCare Online:
https://knowledge.rsasecurity.com
EOPS Policy:
RSA has a defined End of Primary Support policy associated with all major
versions. Please refer to the link below for additional details.
http://www.emc.com/support/rsa/eops/index.htm
SecurCare Online Security Advisories
Read and use the information in this RSA Security Advisory to assist in
avoiding any situation that might arise from the problems described herein. If
you have any questions regarding this product alert, contact RSA Software
Technical Support at 1-800-995-5095. RSA Security LLC and its affiliates,
including without limitation, its ultimate parent company, EMC Corporation,
distribute RSA Security Advisories in order to bring to the attention of users
of the affected RSA products, important security information. RSA recommends
that all users determine the applicability of this information to their
individual situations and take appropriate action. The information set forth
herein is provided "as is" without warranty of any kind. RSA disclaims all
warranties, either express or implied, including the warranties of
merchantability, fitness for a particular purpose, title and non-infringement.
In no event shall RSA, its affiliates or its suppliers, be liable for any
damages whatsoever including direct, indirect, incidental, consequential, loss
of business profits or special damages, even if RSA, its affiliates or its
suppliers have been advised of the possibility of such damages. Some
jurisdictions do not allow the exclusion or limitation of liability for
consequential or incidental damages, so the foregoing limitation may not
apply.
About RSA SecurCare Notes & Security Advisories Subscription
RSA SecurCare Notes & Security Advisories are targeted e-mail messages that
RSA sends you based on the RSA product family you currently use. If you?d like
to stop receiving RSA SecurCare Notes & Security Advisories, or if you?d like
to change which RSA product family Notes & Security Advisories you currently
receive, log on to RSA SecurCare Online at
https://knowledge.rsasecurity.com/scolcms/help.aspx?_v=view3. Following the
instructions on the page, remove the check mark next to the RSA product family
whose Notes & Security Advisories you no longer want to receive. Click the
Submit button to save your selection.
Sincerely,
RSA Customer Support
- --------------------------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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=OE5h
-----END PGP SIGNATURE-----