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LinkedIn suffers DNS hijack

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Re: LinkedIn suffers DNS hijack

#51
This isn't over yet - press dot linkedin.com (dont go there) is still pointing to the rogue server at 204.11.56.17

I'm trying to find other subdomains that might be still pointing there.

edit: i'm enumerating all the linkedin.com hosts using a dict. 80% of A records are returning the rogue IP 204.11

edit: 96 records still pointing at the rogue server, here is a dump I just uploaded:

http://pastebin.com/uc2JXPfB

Re: LinkedIn suffers DNS hijack

#52
post #50
post #39

fidelity.com is also not accessible. Currently traffic is routed to some domain parking page.

Appears to be corrected at this time.

It depends what nameserver you're using. At this time, I see bad results from 3 nameservers on http://www.whatsmydns.net/#A/fidelity.com

It seems this website chooses a random selection from a larger pool of nameservers, so if you refresh the page you may get different results.

Re: LinkedIn suffers DNS hijack

#54
post #51

This isn't over yet - press dot linkedin.com (dont go there) is still pointing to the rogue server at 204.11.56.17 I'm trying to find other subdomains that might be still pointing there. edit: i'm enumerating all the linkedin.com hosts using a dict. 80% of A records are returning the rogue IP 204.11 edit: 96 records still pointing at the rogue server, here is a dump I just uploaded: http://pastebin.com/uc2JXPfB

What nameserver are you using?

Re: LinkedIn suffers DNS hijack

#55
post #33

I'm going to blatantly advertise my own project "RubyDNS" - it can be a lot of fun, and it is especially relevant because it allows you to perform these kinds of attacks in a controlled environment. http://www.codeotaku.com/projects/rubydns/index.en

Have you played with PowerDNS? It would be awesome to see RubyDNS rewritten as a backend.

Yeah, I've looked at it briefly. Well, RubyDNS already provides the full DNS server functionality, so I didn't really see the point.

What do you think the main benefits would be?

Re: LinkedIn suffers DNS hijack

#58
post #14

Can anyone think of a good reason LinkedIn didn't mark their cookies as HTTPS-only? http://en.wikipedia.org/wiki/HTTP_cookie#Secure_and_HttpOnly

not only are they not marked secure, but a lot of them are set to linkedin.com meaning they are sent with requests to x.linkedin.com.

considering a lot of their subdomains are still hijacked at this point those cookies are being sent to them

Re: LinkedIn suffers DNS hijack

#60
post #51

This isn't over yet - press dot linkedin.com (dont go there) is still pointing to the rogue server at 204.11.56.17 I'm trying to find other subdomains that might be still pointing there. edit: i'm enumerating all the linkedin.com hosts using a dict. 80% of A records are returning the rogue IP 204.11 edit: 96 records still pointing at the rogue server, here is a dump I just uploaded: http://pastebin.com/uc2JXPfB

What nameserver are you using?

against their primary NS ns1.linkedin.com

short TTL's on a lot of these domains

I just ran it again this time using Google name servers and still a lot of subdomains are pointing to the 214 server. confirmed it running against their NS, which means it hasn't been changed yet.

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