Re: iis (ftp) 4.0

[Juliano Rizzo <julianorizzo () CIUDAD COM AR>]

> ftp> quote cd
> %f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f
> %f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f
> 421 Service not available, remote server has closed connection
> ftp>

A lot of ftp clients have the user supplied format string bug in the
QUOTE command. You should use telnet, netcat or any other
client to test this kind of bugs
Btw the ftp server command to change current directory is CWD
not CD, cd is a client command and you are using quote.

> I tought it was very weird and also I couldnt state if the ftpd really
> coredump.. but I know it stays at least up because I can reconnect to

Are you sure that you can't reconnect?

> the host. I have a theory that it core-dumps because of the client, and not
> because of the server itself...

Yes, the client crash.

--
Juliano Rizzo <julianorizzo () ciudad com ar>

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