4 ms·
We've known about BGP hijacking attacks for 20 years and they only seem to be an issue now. In my day, kids would inject routes using spoofed RIP UDP packets fr
by motohagiography 8y ago
We've known about BGP hijacking attacks for 20 years and they only seem to be an issue now. In my day, kids would inject routes using spoofed RIP UDP packets from dial-up pools that would get redistributed into the global routing tables. I haven't 'sho ip' anything'ed in more than a decade, but it appears that 20 years later, you can still just compromise a router and announce whatever you want.
The threat model has changed, where then you could send some spam or harvest passwords for shell logins, today we have things like millions of dollars in piles of electronic cash sitting around relatively unprotected and untraceable, a hyper-polarized political environment where people believe they need strong anonymity protections to participate, and the ability to scale the C&C functions for botnets to where they now resemble private darknets.
All the real action seems to be happening in software defined networks in the cloud these days, but it all still depends on this legacy internet infrastructure.
I'm glad CloudFlare is doing this. Someone needed to take the initiative. It was one of those things where it was everybody's problem, which meant it was nobody's problem.
- icedchai 8y agoIt turns out that most upstream providers have route filters, so you can't just announce whatever you want... I do remember those days in the 90's, though. I worked at a small ISP, and a coworker blackholed a few spammers by just announcing their route and sending all traffic to Null0. This was back in the Cisco 4000 days, when a full routing table could fit in 32 megs. If I recall, our upstream was Sprintlink and they didn't do any filtering at the time.