Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party, the Key Distribution Center (KDC).
Multiple checksum validation flaws were discovered in the MIT Kerberos implementation. A remote attacker could use these flaws to tamper with certain Kerberos protocol packets and, possibly, bypass authentication mechanisms in certain configurations using Single-use Authentication Mechanisms. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-1323 to this issue.
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 | 4.2.x, 5.2.x, 6.1 | Low | Upgrade to 6.1.1 or later. |
| Avaya Aura® Communication Manager | 5.2, 5.2.1 without Security Service Pack 2, 6.0.x | Low | Customers running 5.2 upgrade to 5.2.1 and install Security Service Pack 2 or later. Customers running 5.2.1 install Security Service Pack 2 or later. Customers running 6.0.x upgrade to 6.2 or later. |
Avaya Communication Server 1000:
|
6.0, 7.x | Low | See recommended actions and mitigating factors table below. This advisory will not be addressed as no further releases are planned. |
| Avaya Aura® Conferencing Standard Edition | 6.0 including 6.0 SP1 | 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 Intuity AUDIX LX | All | Low | See recommended actions below. This advisory will not be addressed as no further releases are planned. |
| Avaya IQ | 5.0, 5.1 | Low | Upgrade to 5.2 or later. |
| Avaya Meeting Exchange | 5.0, 5.1, 5.2 | Low | Upgrade to 6.2 or later. |
| Avaya Message Networking | 5.2.3 and earlier | Low | Upgrade to 5.2.4 or later. |
| Avaya Messaging Storage Server | 5.0, 5.1.x, 5.2 thru 5.2.8 | Low | Upgrade to 5.2.9 or later. |
| Avaya Aura® Presence Services | 6.0, 6.1, 6.1.1 | Low | Upgrade to 6.1.2 or later. |
| Avaya Proactive Contact | 4.0 thru 4.2.1, 5.0 | Low | Customers running 4.2.1 or ealier upgrade to 4.2.2 or later 4.2.x or upgrade to 5.0.1 or later. Customers running 5.0 upgrade to 5.0.1 or later. |
| Avaya Aura® Session Manager | 5.2.x, 6.0.x, 6.1.x | Low | Upgrade to 6.2 or later. |
| Avaya Aura® SIP Enablement Services | All | Low | See recommended actions below. This advisory will not be addressed as no further releases are planned. |
| Avaya Aura® System Manager | 5.2.x, 6.0.x, 6.1, 6.1.1, 6.1.2, 6.1.3 | Low | Upgrade to 6.1.4 or later. |
| Avaya Aura® System Platform | 1.1, 6.0, 6.0.1, 6.0.2 | Low | Upgrade to 6.0.3 or later. |
| Avaya Voice Portal | 4.x, 5.0, 5.1, 5.1.1 | Low | Upgrade to 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-2010-1323 |
This is a Low as by default kerberos is not used for authentication in any affected product. |
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 7, 2011 - Initial Statement issued.
V 2.0 - July 20, 2011 - Changed AES and SP affected versions and actions and PS affected versions.
V 3.0 - December 12, 2011 - Changed IQ, SMGR and VP affected versions and actions.
V 4.0 - December 16, 2011 - Changed MN affected versions and actions.
V 5.0 - March 6, 2012 - Changed MSS, PC and PS affected versions and actions.
V 6.0 - March 27, 2012 - Changed CM and SM affected versions and actions.
V 7.0 - March 15, 2013 - Changed MX actions.
V 8.0 - June 4, 2013 - Changed CS1000 affected versions and 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].
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