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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.3125
          Cisco Unified Communications Manager Mobile and Remote
               Access Services Identity Attack Vulnerability
                             15 December 2015

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

Product:           Cisco Unified Communications Manager
Publisher:         Cisco Systems
Operating System:  VMware ESX Server
                   Cisco
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-6410  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-ucm

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Cisco Security Advisory

Cisco Unified Communications Manager Mobile and Remote Access Services 
Identity Attack Vulnerability

Medium

Advisory ID: cisco-sa-20151209-ucm

Published: 2015 December 9 00:00 GMT

Version 1.0: Final

CVSS Score:

Base - 4.0

Workarounds:

No workarounds available

Cisco Bug IDs:

CSCuu97283

CVE-2015-6410

CWE-20

Summary

A vulnerability in edge devices of the Cisco Unified Communications Manager 
using Mobile and Remote Access (MRA) services could allow an unauthenticated,
remote attacker to perform an identity theft attack.

The vulnerability is due to improper identity validation of the edge devices.
An attacker could exploit this vulnerability by spoofing a user's identity and
taking ownership of the edge device. A successful exploit will allow the 
attacker to setup and receive voice calls acting as the registered user of the
device.

Cisco has released software updates that address this vulnerability. There are
no workarounds that address this vulnerability.

This advisory is available at the following link: 
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-ucm

Affected Products

Vulnerable Products

Cisco Unified Communications Manager Mobile and Remote Access Edge Devices.

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this 
vulnerability.

Workarounds

There are no workarounds that address this vulnerability.

Fixed Software

When considering software upgrades, customers are advised to consult the Cisco
Security Advisories and Responses archive at http://www.cisco.com/go/psirt and
review subsequent advisories to determine exposure and a complete upgrade 
solution.

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software 
configurations will continue to be supported properly by the new release. If 
the information is not clear, customers are advised to contact the Cisco 
Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described 
in this advisory.

URL

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151209-ucm

Revision History

Version 	Description 		Section 	Status 	Date

1.0 		Initial public release 			Final 	2015-December-09

Legal 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 standalone 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. The information in this document is intended for end 
users of Cisco products.

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