The Sniper Attack: Anonymously Deanonymizing and Disabling the Tor Network
Download: Paper (PDF)
Date: 22 Feb 2014
Document Type: Briefing Papers
Additional Documents: Slides
Associated Event: NDSS Symposium 2014
We present a memory-based denial-of-service (DoS) attack that exploits Tor’s flow control algorithm to remotely kill a Tor relay’s process. We show how the attack may be used to deanonymize hidden services while presenting defenses that provably render the attack ineffective and protect hidden services against DoS attacks in general.