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                              CERT-Renater

                 Note d'Information No. 2017/VULN075
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DATE                : 17/03/2017

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Cisco Meshed Wireless LAN Controller software.

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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-wlc-mesh
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Cisco Security Advisory: Cisco Meshed Wireless LAN Controller
Impersonation Vulnerability


Advisory ID: cisco-sa-20170315-wlc-mesh


Revision: 1.0


For Public Release: 2017 March 15 16:00 GMT


Last Updated: 2017 March 15 16:00 GMT


CVE ID(s): CVE-2017-3854

CVSS Score v(3): 8.8 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L



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Summary

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A vulnerability in the mesh code of Cisco Wireless LAN Controller (WLC)
software could allow an unauthenticated, remote attacker to impersonate
a WLC in a meshed topology.


The vulnerability is due to insufficient authentication of the parent
access point in a mesh configuration. An attacker could exploit this
vulnerability by forcing the target system to disconnect from the
correct parent access point and reconnect to a rogue access point owned
by the attacker. An exploit could allow the attacker to control the
traffic flowing through the impacted access point or take full control
of the target system.

Cisco has released software updates that address this vulnerability.
Note that additional configuration is needed in addition to upgrading
to a fixed release. There are no workarounds that address this
vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-wlc-mesh
["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-wlc-mesh"]


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