[32267] in bugtraq
Re: WU-FTPD 2.6.2 Freezer
daemon@ATHENA.MIT.EDU (Luca Berra)
Sat Nov 1 12:47:27 2003
Date: Sat, 1 Nov 2003 15:47:36 +0100
From: Luca Berra <bluca@comedia.it>
To: bugtraq@securityfocus.com
Message-ID: <20031101144736.GG875@percy.comedia.it>
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In-Reply-To: <20031031194044.GD27612@wirex.com>
On Fri, Oct 31, 2003 at 11:40:44AM -0800, Seth Arnold wrote:
>On Fri, Oct 31, 2003 at 02:55:43PM -0000, Angelo Rosiello wrote:
>> for( i=0; i<loop; i++ )
>> {
>> write( sd, "LIST -w 1000000 -C\n", 19 );
>> }
>
>It is probably worth pointing out that it is FSF ls(1) at fault here;
>wu-ftpd just provides a convenient way for potentially unauthenticated
>users to DoS the machine. If your OS supports rlimits (ulimit(3)), I
>believe they will provide reliable protection against this problem.
it might be also worth noting that wu-ftpd can be rebuilt with internal
ls code.
regards,
L.
--
Luca Berra -- bluca@comedia.it
Communication Media & Services S.r.l.
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