OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.
A ciphersuite downgrade flaw was found in the OpenSSL SSL/TLS server code. A remote attacker could possibly use this flaw to change the ciphersuite associated with a cached session stored on the server, if the server enabled the SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option, possibly forcing the client to use a weaker ciphersuite after resuming the session. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-4180 and CVE-2008-7270 to these issues.
Note: With this update, setting the SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option has no effect and this bug workaround can no longer be enabled.
More information about these vulnerabilities can be found in the security advisory issued by RedHat Linux:
| Product: | Affected Version(s): | Risk Level: | Actions: |
|---|---|---|---|
| Avaya Aura® Application Enablement Services | 5.2.x, 6.1.x | Low | Upgrade to AES 6.2 or later. |
| Avaya Aura® Communication Manager | 6.0.x | Low | Upgrade to Communication Manager 6.2 or later. |
Avaya Communication Server 1000:
|
7.0, 7.5 | Low | Upgrade to Communication Server 1000 7.6 or later. |
| Avaya Aura® Conferencing Standard Edition | 6.0.x | Low | See recommended actions and mitigating factors table below. This advisory will not be addressed as no further releases are planned. It is recommended that customers migrate to one of Avaya's conferencing solutions including Avaya Aura® Conferencing 7.0 or later. |
| Avaya IP Office Application Server | 6.1 | Low | Upgrade to IP Office Application Server version 7.0 or later. |
| Avaya IQ | 5.0, 5.1 | Low | Upgrade to IQ 5.2 or later. |
| Avaya Aura® Presence Services | 6.0, 6.1, 6.1.1 | Low | Upgrade to Presence Services 6.1.2 or later. |
| Avaya Aura® Session Manager | 1.1, 5.2.x, 6.0.x, 6.1, 6.1.1 | Low | Upgrade to Session Manager 6.1.2 or later. |
| Avaya Aura® System Manager | 5.2.x, 6.0.x, 6.1, 6.1.1 | Low | Upgrade to System Manager 6.1.2 or later. |
| Avaya Aura® System Platform | 1.1, 6.0, 6.0.1, 6.0.2 | Low | Upgrade to System Platform 6.0.3 or later. |
| Avaya Voice Portal | 5.0, 5.1, 5.1.1 | Low | Upgrade to Voice Portal 5.1.2 or later. |
Recommended Actions for System Products:
Avaya strongly recommends that customers follow
networking and security best practices by implementing
firewalls, ACLs, physical security or other appropriate
access restrictions. Though Avaya believes such
restrictions should always be in place; risk to Avaya's
product and the surrounding network from this potential
vulnerability may be mitigated by ensuring these
practices are implemented until such time as a product
update is available or the recommended action is applied.
Further restrictions as deemed necessary based on the
customer's security policies may be required during this
interim period.
When determining risk, Avaya takes into account many factors as outlined by Avaya's Security Vulnerability Classification Policy. The following table describes factors that mitigate the risk of specific vulnerabilities for the listed affected Avaya products:
| Vulnerability | Mitigating Factors |
|---|---|
|
CVE-2008-7270 CVE-2010-4180 |
These are a low for all products as the the SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG option is disabled by default. |
Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the underlying operating system or applications that come with the operating system. These vulnerabilities often do not impact the software-only product directly but may threaten the integrity of the underlying platform.
In the case of this advisory Avaya software-only products are not affected by the vulnerability directly but the underlying Linux platform may be. Customers should determine on which Linux operating system the product was installed and then follow that vendor's guidance.
| Product: | Actions: |
|---|---|
| Avaya Aura® Application Enablement Services 4.x/5.x | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the AES application. |
| CVLAN | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the CVLAN application. |
| Avaya Integrated Management Suite (IMS) | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the IMS application. |
| Avaya Aura® Presence Services | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the PS application. |
| Avaya Aura® System Manager 1.0 | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the SMGR application. |
| Voice Portal | Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the Voice Portal application. |
Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends that customers follow recommended actions supplied by RedHat Linux.
Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.
ALL INFORMATION IS BELIEVED TO BE CORRECT AT THE TIME OF PUBLICATION AND IS PROVIDED "AS IS". AVAYA INC., ON BEHALF ITSELF AND ITS SUBSIDIARIES AND AFFILIATES (HEREINAFTER COLLECTIVELY REFERRED TO AS "AVAYA"), DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND FURTHERMORE, AVAYA MAKES NO REPRESENTATIONS OR WARRANTIES THAT THE STEPS RECOMMENDED WILL ELIMINATE SECURITY OR VIRUS THREATS TO CUSTOMERS' SYSTEMS. IN NO EVENT SHALL AVAYA BE LIABLE FOR ANY DAMAGES WHATSOEVER ARISING OUT OF OR IN CONNECTION WITH THE INFORMATION OR RECOMMENDED ACTIONS PROVIDED HEREIN, INCLUDING DIRECT, INDIRECT, INCIDENTAL, STATUTORY, CONSEQUENTIAL DAMAGES, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF AVAYA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
THE INFORMATION PROVIDED HERE DOES NOT AFFECT THE SUPPORT AGREEMENTS IN PLACE FOR AVAYA PRODUCTS. SUPPORT FOR AVAYA PRODUCTS CONTINUES TO BE EXECUTED AS PER EXISTING AGREEMENTS WITH AVAYA.
V 1.0 - January 13, 2011 - Initial Statement issued.
V 2.0 - May 13, 2011 - Changed IP Office Application Server actions.
V 3.0 - July 22, 2011 - Changed AES, IQ, PS, SM, SMGR and SP affected versions and IQ, SM, SMGR and SP actions.
V 4.0 - December 12, 2011 - Changed VP affected versions and actions.
V 5.0 - March 7, 2012 - Changed PS affected versions and actions.
V 6.0 - March 27, 2012 - Changed CM affected versions and actions.
V 7.0 - August 3, 2012 - Changed AES actions.
V 8.0 - June 4, 2013 - Changed CS1000 actions.
V 9.0 - June 26, 2013 - Changed CSE actions and advisory status to final.
Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or [email protected].
© 2011 Avaya Inc. All Rights Reserved. All trademarks identified by the ® or ™ are registered trademarks or trademarks, respectively, of Avaya Inc. All other trademarks are the property of their respective owners.