Re:RCE via ND6 Router Advertisements in FreeBSD
by Fhch6HQ on Tuesday December 23, 2025 @10:48PM
(#46372233)
I may be missing something, but it is almost a guarantee that you would not receive a RA in this scenario? eduroam is using WPA2/WPA3 enterprise, so my understanding is that until you authenticate to the network you do not have L2 network access.
Additionally, eduroam uses certificate auth baked into the provisioning profile to ensure you are authenticating using your organizations IdP. (There are some interesting caveats to this statement that they discuss in https://datatracker.ietf.org/doc/html/rfc7593#section-7.1.1 and the mitigation is the usage of Private CAs for cert signing).
Take eduroam, which is presumably the world's largest federated WiFi network. A random 20 year old studying Geology at Uni in Sydney, Australia will have eduroam configured on their devices, because duh, that's how WiFi works. But, that also works in Cambridge, England, or Paris, France or New York, USA or basically anywhere their peers would be because common sense - why not have a single network?
But this means their device actively tries to connect to anything named "eduroam". Yes it is expecting to eventually connect to Sydney to authenticate, but meanwhile how sure are you that it ignores everything it gets from the network even these low-level discovery packets?