Research on TCP Initial Sequence Number Prediction Method Based on Adding-weight Chaotic Time Series

摘要

Initiating TCP sequence number spoofing through pre-dicting TCP initial sequence number has become a hidden trouble on TCP protocol. There are a variety of TCP ISN prediction methods. Based on the analysis of pseudo-random distribution of ISN in TCP protocol stack, this paper brings chaotic adding-weight dynamic local predict model in TCP ISN prediction by setting up the weights of the neighboring phase point in chaos time se-ries. The experiment results indicate that the predict al-gorithm has a high predict accuracy, and the method also increases the feasibility of TCP reset attack.