Security against probe-response attacks in collaborative intrusion detection

  • Authors:
  • Vitaly Shmatikov;Ming-Hsiu Wang

  • Affiliations:
  • The University of Texas at Austin;The University of Texas at Austin

  • Venue:
  • Proceedings of the 2007 workshop on Large scale attack defense
  • Year:
  • 2007

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Abstract

Probe-response attacks are a new threat for collaborative intrusion detection systems. A probe is an attack which is deliberately crafted so that its target detects and reports it with a recognizable "fingerprint" in the report. The attacker then uses the collaborative infrastructure to learn the detector's location and defensive capabilities from this report. We analyze the fundamental tradeoff between the ability of a collaborative network to detect epidemic threats and security of individual participants against probe-response attacks. We then design and evaluate a collaborative detection system which provides protection against probe-response attacks. Unlike previously proposed collaborative detection networks, our system supports alert sharing while limiting exposure of members' identities.