Multiple vulnerabilities in BEA WebLogic Server 8.1 through SP4, 7.0 through SP6, and 6.1 through SP7 leak sensitive information to remote attackers, including (1) DNS and IP addresses to address to T3 clients, (2) internal sensitive information using GetIORServlet, (3) certain "server details" in exceptions when invalid XML is provided, and (4) a stack trace in a SOAP fault.