Bypassing a firewall is a good question to be asked my security engineers. And probably half of the people on this list know methods to beat different types of firewalls. For those of you familiar with SANS, they offer classes that touch on this topic, like the Firewall class and the advanced hacker tools class.
however, it is important to note that there are different types of firewalls using different methods of protecting. There are 3 basic types of Firewall systems used today: · Packet Filtering · Application Gateway Proxy · Stateful Inspection And please don't exclude the personal software firewalls like Zonealarm, Blackice and so on. Most hacks I see today are attacks that go right through the firewalls. Like the new AIM exploit. Or the old Unicode on IIS exploit. If you had a web server, port 80 was open. And allowed. So why go through the trouble of going around, when you can pass through unnoticed? In addition, to answer your question. I suggest you check out some hack sites. Like BSRF, Security Writers Guild, PacketStormSecurity, and so on. They provide documentation and tools to help you achieve this very task. Good Luck, Chalres ________________________________________________________________ The information contained in this message is intended only for the recipient, may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, please be aware that any dissemination or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify us by replying to the message and deleting it from your computer. Thank you, Standard & Poor's
