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Cisco Bug: CSCuo34449 - ISE posture dropped via CoA due to invalid HTTP User-Agent [Trident 4.0]

Last Modified

Nov 27, 2020

Products (1)

  • Cisco Identity Services Engine

Known Affected Releases

1.2(0.907)

Description (partial) 

Symptom:
When the client has been provisioned NAC Agent it's status is pending on ISE.

What at that time any application working on client initiates HTTP (still redirected to ISE for a provisioning) using User-Agent which is not recognized by ISE (for which operating system is not recognized) that will trigger ISE to clear that session and send Radius CoA Terminate to NAD.

Conditions:
Custom User-Agent in HTTP application send during posture.
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