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Cisco Bug: CSCur83728 - AnyConnect NAM doesn't send an EAPoL logoff when CAC card is removed

Last Modified

Mar 12, 2016

Products (1)

  • Cisco AnyConnect Secure Mobility Client

Known Affected Releases

3.1(5080) 3.1(51)

Description (partial)

Symptom:
On AnyConnect NAM, there is no EAPoL logoff message sent when a CAC or similar smartcard is removed.

Conditions:
The issue here is that when a user removes their smartcard the switch has no way to know to terminate their session. If reauthentication is configured, then whenever the switch initiates a reauthentication session the reauthentication session gets caught in this quasi-authenticated state since the endpoint is no longer able to provide the required credentials stored on the smartcard--which has been removed. Since the user had to re-enter their credentials by inserting the CAC card, there is no loss by sending the EAPoL logoff packet to the switch or WLC.
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Bug Details Include

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