Lotus Domino 5.0.9a and earlier, even when configured with the 'DominoNoBanner=1' option, allows remote attackers to obtain potential sensitive information such as the version via a request for a non-existent .nsf database, which leaks the version in the HTTP banner.

htcgibin.exe in Lotus Domino server 5.0.9a and earlier, when configured with the NoBanner setting, allows remote attackers to determine the version number of the server via a request that generates an HTTP 500 error code, which leaks the version in a hard-coded error message.

htcgibin.exe in Lotus Domino server 5.0.9a and earlier allows remote attackers to determine the physical pathname for the server via requests that contain certain MS-DOS device names such as com5, such as (1) a request with a .pl or .java extension, or (2) a request containing a large number of periods, which causes htcgibin.exe to leak the pathname in an error message.