Low rate TCP denial-of-service attack detection at edge routers

Document Type

Article

Publication Date

1-1-2005

Abstract

Low rate TCP Denial-of-Service attacks are a new type of DoS attacks that are carefully orchestrated to exploit the fixed minimum TCP RTO property, and thereby deny services to legitimate users. This type of attacks is different from traditional flood-based attacks, and hence conventional solutions to detect these attacks are not applicable. We propose a novel approach to detect these attack flows at edge routers. A flow exhibiting a periodic pattern is marked malicious if its burst length is greater than or equal to RTTs of other connections with the same server, and its time period is equal to the fixed minimum RTO. A carefully designed light weight data structure is proposed to store the necessary flow history at edge routers. Simulation results show that such flows can be detected by our proposed approach, which does not require any modification to TCP congestion control algorithms like randomizing the fixed minimum RTO. © 2005 IEEE.

Identifier

17744370129 (Scopus)

Publication Title

IEEE Communications Letters

External Full Text Location

https://doi.org/10.1109/LCOMM.2005.1413635

ISSN

10897798

First Page

363

Last Page

365

Issue

4

Volume

9

Fund Ref

State of New Jersey Commission on Science and Technology

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