Title: X Display Manager Control Protocol (XDMCP)
ID: 10891
Category: Useless services
Summary: Checks if XDM has XDMCP protocol enabled
** The plugin sends a XDMCP QUERY request to see if the remote
** host is running XDM (or similar display manager) with XDMCP
** protocol enabled. ** This protocol was used to provide X display connections for old
** X terminals. XDMCP is completely insecure, since the traffic and
** passwords are not encrypted. **

Risk factor : Medium
Solution : Disable XDMCP