Operating System:

[Cisco]

Published:

01 September 2016

Protect yourself against future threats.

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

                               ESB-2016.2071
          Multiple vulnerabilities have been identified in Cisco
                          Wireless LAN Controller
                             1 September 2016

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

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

Product:           Cisco Wireless LAN Controller
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-6376 CVE-2016-6375 

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160831-wlc-1
   http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160831-wlc-2

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Cisco Wireless LAN Controller TSM SNMP Denial of Service Vulnerability

Medium

Advisory ID:

cisco-sa-20160831-wlc-1

First Published:

2016 August 31 16:00 GMT

Version 1.0:

Final

Workarounds:

No workarounds available

Cisco Bug IDs:

CSCuz40221

CVSS Score:

Base 5.7, Temporal 4.7

CVE-2016-6375

CWE-399

Summary

A vulnerability in the traffic stream metrics (TSM) implemented with the 
Inter-Access Point Protocol (IAPP) of the Cisco Wireless LAN Controller (WLC)
could allow an unauthenticated, adjacent attacker to cause a denial of service
(DoS) condition because the process on the WLC unexpectedly restarts. The DoS
condition could occur when a subsequent Simple Network Management Protocol 
(SNMP) request is received for TSM information.

The occurs when an SNMP request for TSM information is received. An attacker 
could exploit this vulnerability by sending crafted IAPP packets followed by 
an SNMP request for TSM information to the targeted device. An exploit could 
allow the attacker to cause a DoS condition when the WLC unexpectedly 
restarts.

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-20160831-wlc-1

Affected Products

Vulnerable Products

All versions of Cisco Wireless LAN Controller prior to the first fixed 
versions of 8.0.140, 8.2.121.0, and 8.3.102.0 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

Cisco provides information about fixed software in Cisco bugs, which are 
accessible through the Cisco Bug Search Tool.

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-20160831-wlc-1

Revision History

Version Description 		Section Status 	Date

1.0 	Initial public release. -	Final 	2016-August-31

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.

- ---

Cisco Wireless LAN Controller wIPS Denial of Service Vulnerability

Medium

Advisory ID:

cisco-sa-20160831-wlc-2

First Published:

2016 August 31 16:00 GMT

Version 1.0:

Final

Workarounds:

No workarounds available

Cisco Bug IDs:

CSCuz40263

CVSS Score:

Base 6.1, Temporal 5.0

CVE-2016-6376

CWE-399

Summary

A vulnerability in the Cisco Adaptive Wireless Intrusion Prevention System 
(wIPS) implementation in the Cisco Wireless LAN Controller (WLC) could allow 
an unauthenticated, adjacent attacker to cause a denial of service (DoS) 
condition because the wIPS process on the WLC unexpectedly restarts.

The vulnerability is due to lack of proper input validation of wIPS protocol 
packets. An attacker could exploit this vulnerability by sending a malformed 
wIPS packet to the affected device. An exploit could allow the attacker to 
cause a DoS condition when the wIPS process on the WLC unexpectedly restarts.

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-20160831-wlc-2

Affected Products

Vulnerable Products

All versions of Cisco Wireless LAN Controller prior to the first fixed 
versions of 8.0.140.0, 8.2.121.0, and 8.3.102.0 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

Cisco provides information about fixed software in Cisco bugs, which are 
accessible through the Cisco Bug Search Tool.

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-20160831-wlc-2

Revision History

Version Description 		Section Status 	Date

1.0 	Initial public release. -	Final 	2016-August-31

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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