This indicates an attack attempt to exploit an Information Disclosure vulnerability in Oracle 9i Application Server.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application. As a result, a remote attacker can gain unauthorized access to sensitive information.
Oracle 9i Application Server 1.0.2.x
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Currently we are not aware of any vendor supplied patch for this issue.