Fragmentation Considered Vulnerable: Blindly Intercepting and Discarding Fragments
نویسندگان
چکیده
The key to their attack is to determine the IP ID. This is trivial with Windows, which uses a monotonically increasing IP ID. Linux uses a per-destination IP ID, which makes determining the IP ID more difficult. In their attacks, they make use of a sandboxed script, PuZo, on the victim’s network, to watch for fragments that do not show up. The missing fragments must have had a valid IP ID, and thus are not directed to PuZo. Their attack requires O(square root of N) probe packets.
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تاریخ انتشار 2011