From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Chandran Subject: FTP Bounce Attack. Date: Fri, 28 Jan 2005 20:54:58 +0530 Message-ID: <41FA594A.1000103@multitech.co.in> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: netfilter-bounces@lists.netfilter.org Errors-To: netfilter-bounces@lists.netfilter.org Content-Type: text/plain; charset="us-ascii"; format="flowed" To: netfilter@lists.netfilter.org Hi, I am currently using iptables 1.2.11 with the patch-o-matic patch applied. Its documented that netfilter is patched to protect against FTP bounce attacks, when an invalid IP is given in the FTP PORT command. I can detect the PORT command reaching the FTP server through the router( containing netfilter), even when I give an ivalid IP. I would like to know whether the patch is not working or whether the patch is meant to not allow the resulting bounce attack, even with allowing the PORT command to pass through. Thanks and Regards, Vinod C