Bugtraq mailing list archives

Re: WWW Servers Bandwidth flood on Internet


From: mouse () Collatz McRCIM McGill EDU (der Mouse)
Date: Wed, 18 Jan 1995 14:30:26 -0500


Dec 28 11:53:06 cray ftpd[2730]: PASV  <==Badly configured client!!!
Dec 28 11:53:06 cray ftpd[2730]: FTP session closed

This is a different bug altogether.  If you do a "PASV" followed by a
quit, ftpd keeps haning in QUIT.  This is true for all ftpds I know
off.

Doesn't happen with my ftpd:

        [Thunder] 8> telnet collatz ftp
        Trying 132.206.78.1 ...
        Connected to collatz.McRCIM.McGill.EDU.
        Escape character is '^]'.
        220-MouseMUF FTP server ready.
        220-This is an experimental FTP server.
        220-Please send problem reports to mouse () collatz mcrcim mcgill edu.
        220-If you have trouble like:
        220-    ftp> ls -CF
        220-    200 Port 11.22.33.44/4321 OK.
        220-    150 Opening data connection for names "-CF"
        220-    226-"-CF": No such file or directory
        220-    226 Closing data connection.
        220-then see HELP LIST and HELP NLST for how to prevent them from
        220-quoting arguments beginning with - signs.  (You may need to type
        220-something like "quote help nlst".)
        220-This server can automatically (un)compress, g(un)zip, and btoa
        220 files, and tar directories.  See HELP EXT for details.
        USER anonymous
        331 Anonymous login OK, send email address as password.
        PASS mouse () mcrcim mcgill edu
        230 Anonymous login OK.
        PASV
        227 PASV port is 132,206,78,1,16,117 (port 4213).
        QUIT
        221 Goodbye.
        Connection closed by foreign host.
        [Thunder] 9> 

...and a check on collatz showed that the process for that connection
had correctly disappeared.

So there. :-)

                                        der Mouse

                            mouse () collatz mcrcim mcgill edu



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