That doesn't make sense to me, seems like the key needs to be in memory all the time, or at least during every session.
CloudFlare's Heartbleed challenge cracked
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Re: CloudFlare's Heartbleed challenge cracked
#52"We rebooted the server at 3:08PST, which may have contributed to the key being available in memory, but we can’t be certain.". https://www.cloudflarechallenge.com/heartbleed That doesn't make sense to me, seems like the key needs to be in memory all the time, or at least during every session.
[1] https://blog.cloudflare.com/answering-the-critical-question-...
Re: CloudFlare's Heartbleed challenge cracked
#53Ah crap.
Re: CloudFlare's Heartbleed challenge cracked
#54* From https://www.cloudflarechallenge.com/heartbleed * So far, two people have independently solved the Heartbleed Challenge. The first was submitted at 4:22:01PST by Fedor Indutny (@indutny). He sent at least 2.5 million requests over the span of the challenge, this was approximately 30% of all the requests we saw. The second was submitted at 5:12:19PST by Illkka Mattila using around 100 thousand requests. We confi…
I wonder if the trick is to just send so many things that memory wraps around to a place where the key is exposed.
Had bleed running in a while loop with no sleep and ab running on a loop as well sending connections to the server hoping to get the mem jostled around enough to cause something like that you described.
I was unsuccessful as of 9:30AM... now I'm really curious to get home and see if I actually caught it... even though I already missed the $10k boat :(
Re: CloudFlare's Heartbleed challenge cracked
#55Re: CloudFlare's Heartbleed challenge cracked
#56"We rebooted the server at 3:08PST, which may have contributed to the key being available in memory, but we can’t be certain.". https://www.cloudflarechallenge.com/heartbleed That doesn't make sense to me, seems like the key needs to be in memory all the time, or at least during every session.
Re: CloudFlare's Heartbleed challenge cracked
#57Re: CloudFlare's Heartbleed challenge cracked
#58Re: CloudFlare's Heartbleed challenge cracked
#59Earlier quoted context omitted.
I was lucky, my boss understood pretty quickly how big a deal it was. My project manager didn't, though, but he did pretty quick when I cracked our dev server and told him his password for a couple of services. It was fun playing pen tester and getting paid for it this week :)
Do you guys store passwords in plain text? Shouldn't you only be able to get password hashes from a vulnerable server? I might be reading too much into your statement, but I'd like to know if I'm misunderstanding the situation.
Normally this is protected by tls, but as you can see, for servers that suffer from this hole, it's as good as naught.
Note that this occurs for "any" connections hitting the vulnerable server, meaning that the patient attacker can just run this in a script and scoop up passwords, credit card #'s, form information POST'ed in by all users of the web service all day long until the hole is closed. and even then there's a good chance that the private keys were already exposed, in which case the attacker can now masquerade as the server.