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ESB-2014.0813 - [Virtual][Cisco] Cisco Identity Services Engine Software: Denial of service - Existing account

Date: 23 May 2014

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0813
         Cisco ISE RADIUS Service Denial of Service Vulnerability
                                23 May 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Identity Services Engine Software
Publisher:         Cisco Systems
Operating System:  Cisco
                   VMware ESX Server
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3276  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3276

- --------------------------BEGIN INCLUDED TEXT--------------------

Cisco Security Notice

Cisco ISE RADIUS Service Denial of Service Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3276

CVE ID: CVE-2014-3276

Release Date: 2014 May 21 21:03  UTC (GMT)

Last Updated: 2014 May 22 15:44  UTC (GMT)

Related Documents:    

Summary

A vulnerability in Cisco Identity Services Engine (ISE) could allow an 
authenticated, remote attacker to cause the affected system to stop processing 
Remote Authentication Dial-In User Service (RADIUS) packets.

The vulnerability is due to improper implementation of deadlock code when the 
system receives crafted RADIUS accounting packets from two different network 
access servers (NASs). An attacker could exploit this vulnerability by 
crafting RADIUS account packets and sending them to the affected system. An 
exploit could allow the attacker to cause the RADIUS process to become 
unresponsive, causing the affected system to stop processing RADIUS packets.

Affected Products

Product                                   More Information     CVSS

Cisco Identity Services Engine Software   CSCuo56780           4.0/3.8

What Is a Cisco Security Notice?

The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco 
Security Notices to inform customers of low- to mid-level severity security 
issues involving Cisco products.

Customers who wish to upgrade to a software version that includes fixes for 
these issues should contact their normal support channels. Free software 
updates will not be provided for issues that are disclosed through a Cisco 
Security Notice.

For additional information about Cisco PSIRT publications, see the Cisco 
Security Vulnerability Policy at 
http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html

Customers Using Third-Party Support Organizations

Customers may have Cisco products that are provided or maintained through 
prior or existing agreements with third-party support organizations, such as 
Cisco Partners, authorized resellers, or service providers. For these 
products, customers should consult their service providers or support 
organizations to ensure that any applied workaround or fix is the most 
appropriate in the intended network before it is deployed.

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS 
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS 
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy, and may lack important information 
or contain factual errors.

- --------------------------END INCLUDED TEXT--------------------

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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===========================================================================
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