CVE-2010-1157
Apache Tomcat 5.5.0 through 5.5.29 and 6.0.0 through 6.0.26 might allow remote attackers to discover the server’s hostname or IP address by sending a request for a resource that requires (1) BASIC or (2) DIGEST authentication, and then reading the realm field in the WWW-Authenticate header in the reply.
Date published : 2010-04-23
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html