[gtld-tech] URS and replay attacks

Rubens Kuhl rubensk at nic.br
Tue Sep 1 20:35:07 UTC 2015


I'm wondering what we have, if any, in resources to prevent URS replay attacks. The threat scenario we've made include access to the "Sent Items" folder of an URS Provider, without access to PGP information. With such access, domains that already received URS-Lock and URS-Suspend commands might be subject to lock or suspension again, even if there is not, at that time, an URS procedure ongoing. That could even happen with a new registrant of that domain. 

I couldn't find anything in the requirements or URS Provider RFIs that would generate information capable of mitigating this threat... am I missing something ? 


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