Friday, August 24, 2018

Duo Auth for Cisco ASA Administration

We're trying to set up SSH authentication to use our Duo servers as we have with many Cisco IOS devices however we're hitting an issue on the ASAs.

Attempting to log into an ASA via SSH with Duo configured is going as follows:

- Enter username / Password

- Accept Duo push message

- ASA responds with "Password authentication failed"

Issue is the correct username and password is entered and in the Duo logs indicate that an access accept message is being returned to the ASA, so all SHOULD be working. Searching google is turning up absolutely nothing related to SSH authentication for the ASA, the only documentation out there is for AnyConnect using Duo.

If anyone has managed to solve this problem in the past I would really appreciate hearing how you managed this.

Thanks in advance!



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