| To prevent the compromise of authentication information, such as passwords and PINs, during the authentication process, the feedback from the information system must not provide any information that would allow an unauthorized user to compromise the authentication mechanism.
Obfuscation of user-provided information when typed into the system is a method used in addressing this risk.
For example, displaying asterisks when a user types in a password or PIN, is an example of obscuring feedback of authentication information.
Database applications may allow for entry of the account name and password as a visible parameter of the application execution command. This practice must be prohibited and disabled to prevent shoulder surfing.
This calls for review of applications, which will require collaboration with the application developers. It is recognized that in many cases, the database administrator (DBA) is organizationally separate from the application developers and may have limited, if any, access to source code. Nevertheless, protections of this type are so important to the secure operation of databases that they must not be ignored. At a minimum, the DBA must attempt to obtain assurances from the development organization that this issue has been addressed and must document what has been discovered. |
