Reset ColdFusion Administrator password

1. Stop the CFMX service.
2. Open <cfmxroot>/lib/password.properties (CFMX Standard) or <jrun.home>/servers/<instance>/cfusion-ear/cfusion-war/WEB-INF/lib/password.properties (CFMX/J2EE)
3.Change the password to something temporary.
4.Change the encrypt line to false.
5.Save the file and close.
6.Start CFMX Service.
7.Load up the administrator and use the password you chose in 3).
8.Change your administrator password once logged in.

ColdFusion will then automatically change the encrypt value back to true and encrypt your password.

Taken from http://www.creative-restraint.co.uk/blog/index.cfm?mode=entry&entry=EB2332D5-A57E-D884-9AD715E4EEFE8200