nidump on MacOS X before 10.3 allows local users to read the encrypted passwords from the password file by specifying passwd as a command line argument.Referenceshttp://lists.apple.com/mhonarc/security-announce/msg00038.htmlhttp://securitytracker.com/id?1001946http://www.securiteam.com/securityreviews/5QP032A4UU.htmlhttp://www.securemac.com/macosxnidump.phphttp://lists.insecure.org/lists/bugtraq/2002/Sep/0128.htmlhttp://marc.info/?l=bugtraq&m=99953038722104&w=2