Gaining Control of Cellular Traffic Accounting by Spurious TCP Retransmission

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Presented at NDSS 2014 by

Denis Kune

Yongdae Kim

Younghwan Go

Jongil Won

Eunyoung Jeong

Kyoungsoo Park

In this work, we show two attacks on cellular data accounting systems where a user is either overcharged with spurious TCP retransmission or uses the service for free via TCP tunneling. We propose Abacus, an accurate accounting system that detects TCP tunneling attacks even in the 10 Gbps networks.