Mitigating IP spoofing against Tor
(torproject.org)
At the end of October, Tor directory authorities, relay operators, and even the Tor Project sysadmin team received multiple abuse complaints from their providers about port scanning. These complaints were traced back to a coordinated IP spoofing attack, where an attacker spoofed non-exit relays and other Tor-related IPs to trigger abuse reports aimed at disrupting the Tor Project and the Tor network.
At the end of October, Tor directory authorities, relay operators, and even the Tor Project sysadmin team received multiple abuse complaints from their providers about port scanning. These complaints were traced back to a coordinated IP spoofing attack, where an attacker spoofed non-exit relays and other Tor-related IPs to trigger abuse reports aimed at disrupting the Tor Project and the Tor network.