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Cisco Bug: CSCtb07420 - WCS mishandles RADIUS message-authenticator from ACS5

Last Modified

Jun 30, 2016

Products (1)

  • Cisco 4400 Series Wireless LAN Controllers

Known Affected Releases


Description (partial)


Radius authentications will fail from WCS with invalid username/password message in the web GUI. Trace logs indicate message-authenticator was invalid. However ACS shows a passed authentication.

This is caused by a different order of radius attributes than the WCS expects. The message-authenticator has to be the last attribute in the packet. If the radius traffic is captured and the message-authenticator is before the other attributes in the packet order, the the authentication will fail.


Radius authentication with:
ACS 5.0
Some third party radius servers
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Bug Details Include

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