The default configurations of (1) the port listener and (2) modplsql in Oracle Internet Application Server (IAS) 3.0.7 and earlier allow remote attackers to view privileged database information via HTTP requests for Database Access Descriptor (DAD) files.
http://www.securityfocus.com/bid/2150
http://www.iss.net/security_center/static/5818.php
http://online.securityfocus.com/archive/1/155881
http://archives.neohapsis.com/archives/bugtraq/2000-12/0463.html
http://archives.neohapsis.com/archives/bugtraq/2000-12/0372.html