Re: WU-FTPD

From: haywardat_private
Date: Fri Nov 12 1999 - 11:39:35 PST

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    Doesn't wu-ftpd use the /home/ftp/etc/passwd file for this information,
    after doing a chroot during anonymous ftp?
    
    In which case, this is more of a configuration issue rather than a wu-ftpd
    issue?  Because it depends on what you put in /home/ftp/etc/passwd.
    
    --
    Brian Hayward
    http://www.slothmud.org/~hayward/mic_humor.html
    
    On Fri, 12 Nov 1999, Mnemonix wrote:
    
     >There's feature of the WU-FTP daemon  (Version 2.4.2 tested as well as
     earlier versions) (http://www.academ.com/academ/wu-ftpd/) that allows a
     remote user to workout what flavour of UNIX the ftp server is running on.
     When using the cd (CWD) command to a user accounts home directory (cd
     ~user) the WU-FTPD will reveal the accounts physical path if the account
     is a built in standard account such as root or games or uucp etc. For
     non-standard accounts it calims not to know the user:
    >
    >ftp> cd ~mail
    >550 /var/spool/mail: No such file or directory.
    >ftp> cd ~games
    >550 /usr/games: No such file or directory.
    >ftp> cd ~root
    >550 /root: No such file or directory.
    >ftp> cd ~guest
    >550 Unknown user name after ~
    >ftp> cd ~jsmith
    >550 Unknown user name after ~
    >ftp> cd ~nobody
    >550 /dev/null: No such file or directory.
    >
    >Knowing what accounts exist on what flavour of UN*X allows a remote user to can then say with a high degree of certainty that they're dealing with a specific platform.
    >
    >Cheers,
    >David Litchfield
    >http://www.infowar.co.uk/mnemonix/
    >Cerberus Information Security
    >+44(0)181 661 7405
    >
    >
    >
    >
    



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