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ESB-2016.0379 - [Cisco] Cisco Industrial Ethernet 2000 Series Switches: Denial of service - Remote/unauthenticated

Date: 16 February 2016

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

                               ESB-2016.0379
       Cisco IOS Software for Cisco Industrial Ethernet 2000 Series
                 Switches Denial of Service Vulnerability
                             16 February 2016

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

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

Product:           Cisco Industrial Ethernet 2000 Series Switches
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2016-1330  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160215-ie2000

Comment: If the use case permits, AusCERT recommends disabling CDP until a fix
         is released by Cisco

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

Cisco IOS Software for Cisco Industrial Ethernet 2000 Series Switches Denial 
of Service Vulnerability

Medium

Advisory ID:

cisco-sa-20160215-ie2000

Published:

2016 February 15 14:00 GMT

Version 1.0:

Final

CVSS Score:

Base - 6.1

Workarounds:

No workarounds available

Cisco Bug IDs:

CSCuy27746

CVE-2016-1330

CWE-399

Summary

A vulnerability in the processing of Cisco Discovery Protocol (CDP) packets by
Cisco IOS Software for Cisco Industrial Ethernet 2000 Series Switches could 
allow an unauthenticated, adjacent attacker to cause an affected device to 
reload.

The vulnerability is due to improper processing of crafted CDP packets. An 
attacker could exploit this vulnerability by sending a crafted CDP packet to 
an affected device. An exploit could allow the attacker to cause the affected
device to reload.

Cisco has not 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-20160215-ie2000

Affected Products

Vulnerable Products

Cisco Industrial Ethernet 2000 Series Switches running Cisco IOS Software 
Release 15.2(4)E are vulnerable.

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 upgrade 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-20160215-ie2000

Revision History

Version Description 		Section Status 	Date

1.0 	Initial public release. -	Final 	2016-February-15

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.

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

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This security bulletin is provided as a service to AusCERT's members.  As
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NOTE: This is only the original release of the security bulletin.  It may
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        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.
===========================================================================
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