ORA-28172: distinguished name not provided by proxy
Cause : A client user is to be identified using a distinguished name, but none was provided by the proxy user.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Provide a distinguished name.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.