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Possible BGP hijack of 1.1.1.1

bgpstream.com

31–40 of 158 posts

Re: Possible BGP hijack of 1.1.1.1

#31

And that is why I'm using dns over tls :)

Not enough. You have to check the certificate's fingerprint, along with its validity.

TLS is not a silver bullet. If an attacker controls the host behind what everyone believes to be 1.1.1.1, nothing is to prevent them from applying for a legit certificate.

Re: Possible BGP hijack of 1.1.1.1

#32
post #19

Interesting! My ping to that address went terrible for a brief window today - https://i.imgur.com/KjCcBeT.png Wonder if this was the cause. *edit: I'm in Cape Town and the ping looks what was routing to a DC down the road decided to go to Europe instead.

Hey, what software are you using to collect the data and display that graph? I wouldn't mind running something on my server that could notify or log if 1.1.1.1 (and other services I rely on) are slow or down.

Re: Possible BGP hijack of 1.1.1.1

#33
post #32
post #19

Interesting! My ping to that address went terrible for a brief window today - https://i.imgur.com/KjCcBeT.png Wonder if this was the cause. *edit: I'm in Cape Town and the ping looks what was routing to a DC down the road decided to go to Europe instead.

Hey, what software are you using to collect the data and display that graph? I wouldn't mind running something on my server that could notify or log if 1.1.1.1 (and other services I rely on) are slow or down.

That looks like smokeping

Re: Possible BGP hijack of 1.1.1.1

#34
post #32

Earlier quoted context omitted.

Hey, what software are you using to collect the data and display that graph? I wouldn't mind running something on my server that could notify or log if 1.1.1.1 (and other services I rely on) are slow or down.

That looks like smokeping

This is correct.

Re: Possible BGP hijack of 1.1.1.1

#37
post #14

I doubt that this is a genuine hijacking attempt. All it takes is a Cisco router and some IT admin making up an address.

Agreed. As many pointed out when the 1.1.1.1 DNS service was introduced, it's an address that is often used (incorrectly) as an internal or temporary IP. Then all it takes is a slight mistake in your route redistribution and suddenly you can find yourself accidentally announcing the prefix to eBGP.

I wouldn't be surprised if this becomes a semi-regular occurrence.

Re: Possible BGP hijack of 1.1.1.1

#38

Earlier quoted context omitted.

No, the issue persists. While I can access your site from mobile and residential connection, any static business connection fails. No 1.1.1.1 involved. I tested this with two different Fibre connections (Berlin).

Is the BGP hijack over?

As a data point - your site still isn't loading for me.

IP : 79.69.113.214

Time: Tue May 29 15:28:30 BST 2018

Re: Possible BGP hijack of 1.1.1.1

#40

And that is why I'm using dns over tls :)

Useless without pinning.

If you're using DNS-over-HTTPS, you should be safe though.

dnscrypt-proxy enforces pinning (the parent cert signature is included in the DNS stamp required to connect), and I guess Firefox and cloudflared also do.

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