TCP packet fragment attacks against firewalls and filters

TCP packet fragment attacks against firewalls and filters -...

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*********************************************************************** ADVISORY: TCP packet fragment attacks against firewalls and filters System: TCP/IP networks Source: http://all.net, Dr. Frederick B. Cohen *********************************************************************** Packet Fragmentation Attacks Introduction to Packet Fragmentation Packet fragmentation is the part of the Internet Protocol (IP) suite of networking protocols that assures that IP datagrams can flow through any other sort of network. (For details, see Internet Request For Comments 791 (rfc791) and are available and searchable in electronic form from Info-Sec heaven on the World-Wide-Web at http://all.net, through gopher service at all.net, or by ftp service from rs.internic.net.) Fragmentation works by allowing datagrams created as a single packet to be split into many smaller packets for transmission and reassembled at the receiving host. Packet fragmentation is necessary because underlying the IP protocol, other physical and or logical protocols are used to transport packets through networks. A good example of this phenomena is on the difference between
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TCP packet fragment attacks against firewalls and filters -...

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