Attacking TACACS

["Mike Klingler" <whitehatguru () gmail com>]

Guys,
     I am working on a penetration test which includes some cisco
equipment.  On this particular one they have a system with UDP ports
49, 67, 123 open.  Nmap recognizes the ports as being for TACACS,
DHCP, and NTP.  The security implications of the DHCP and NTP I
understand already, but I don't have any experience with the TACACS
portion.  I haven't found any information on google about attacking
TACACS directly.  Anyone else out there run into this?

Thanks,
Mike

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