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ESB-2014.2358 - [Juniper] Juniper WLC Series : Denial of service - Console/physical

Date: 11 December 2014

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.2358
  2014-12 Security Bulletin: WLC Series: Denial of Service Vulnerability.
                             11 December 2014

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

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

Product:           Juniper WLC Series
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Denial of Service -- Console/Physical
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-6381  

Original Bulletin: 
   http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10662

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

2014-12 Security Bulletin: WLC Series: Denial of Service Vulnerability.

Categories:

WLC Series 
WLC2
WLC8 
WLC200 
WLC800 
WLC880 
WLC2800 
SIRT Advisory 
WLC100

Security Advisories ID: JSA10662 
Last Updated: 		10 Dec 2014 
Version: 		2.0

Product Affected: WLC Series devices with WLAN Software releases 8.0, 9.0 and
9.1

Problem:

When "Proxy ARP" or "No Broadcast" features are enabled in a clustered WLC 
setup, a network adjacent attacker with access to the local WiFi network may 
cause a WLC device to disconnect from the cluster causing a denial of service
condition for the wireless access points.

This issue can not be exploited remotely over the Internet as access to the 
local WiFi network is essential to trigger this condition.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

No other Juniper Networks products or platforms are affected by this issue.

This issue has been assigned CVE-2014-6381.

Solution:

The following software releases have been updated to resolve this specific 
issue:

MSS versions:

9.1.1 and later 
9.0.3.5 and later 
9.0.2.11 and later 
8.0.4 and later

All subsequent releases also contain the fix.

Workaround: Disabling "Proxy ARP" and "No Broadcast" option would completely 
mitigate the issue.

Implementation:

WLC software is available for download from 
http://www.juniper.net/support/downloads/

Customers who need Service Release or release not available on the downloads 
site can contact JTAC to obtain these. Modification History:

2014-12-10: Initial publication.

Related Links:

KB16613: Overview of the Juniper Networks SIRT Monthly Security Bulletin 
Publication Process

KB16765: In which releases are vulnerabilities fixed?

KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories

Report a Security Vulnerability - How to Contact the Juniper Networks 
Security Incident Response Team

CVSS Score: 6.1 (AV:A/AC:L/Au:N/C:N/I:N/A:C)

Risk Level: Medium

Risk Assessment: Information for how Juniper Networks uses CVSS can be found 
at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories".

Acknowledgements:

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

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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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