Ddos attack on TOR hidden services – All Versions Vulnerable

Posted by: DeepDotWeb

March 26, 2015

Reported Here: https://trac.torproject.org/projects/tor/ticket/15463

In a ticket titled as “TOR CPU load 100%. Hidden service unavailable. Maybe zero-day vulnerability like “circuit storm”. ”

Problem exist at all versions(0.2.5, 0.2.6, master from git) At current time few hidden services in TOR network DDOSed by this method.

Several Market admins Have already contacted us confirming that they are under Ddos attack as well.

Updated: 2015-03-26