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Network Hardening

In: Computers and Technology

Submitted By holloway2005
Words 369
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Network Hardening

Client side attacks are attacks that target vulnerabilities in client applications that interact with a malicious server or process malicious data. Here, the client initiates the connection that could result in an attack. If a client does not interact with a server, it is not at risk, because it doesn’t process any potentially harmful data sent from the server. Merely running an FTP client without connecting to an FTP server would not allow for a client-side attack to take place. Simply starting up an instant messaging application potentially exposes the client to such attacks, because clients are usually configured to automatically log into a remote server.
With this client server diagram there is only one firewall posted between the internet and the web server. I would consider placing a firewall between the wireless and the switch. Modern firewalls have the capability to function as a router, opposing the need of additional device on the network. However, if you have a large number of hosts in the Demilitarized Zone DMZ, you may wish to consider a router with fundamental filtering rules; placing one on the network can reduce the load on the firewall itself.
The network has only one mutual Internet connection; I would protect it by enabling Internet Connection Firewall. Internet Connection Firewall can only check the infrastructures that cross the Internet connection on which it is enabled. Because Internet Connection Firewall works on a per connection foundation, you need to enable it on all workstations with connections to the Internet, in order to guarantee protection for your complete network. If you have enabled the firewall on the ICS host computer's Internet connection, but a client computer with a straight Internet connection is not using the firewall for protection, your network will be vulnerable through that unprotected connection.
Bibliography
Securing your client-server or multi-tier application. (1998-2013). Retrieved from ELDOS: http://www.eldos.com/security/articles/1942.php?page=all
Tom Jelen, R. K. (2012, March 21). WebJunction. Retrieved from Client Server Networks: http://www.webjunction.org/documents/webjunction/Client_045_Server_Networks.html
West, M. (2013, February 25). Mike West. Retrieved from Securing the Client Side: http://mikewest.org/2013/02/securing-the-client-side-devoxx-2012…...

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