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Security Notification and Linode Manager Password Reset

blog.linode.com

31–40 of 173 posts

Re: Security Notification and Linode Manager Password Reset

#31

Earlier quoted context omitted.

For those not in the know, ryanlol was one of the people on the team involved in the 2013 hacks.

Really? Thomas Asaro told us they were all in jail.

I know of at least one other of the alleged HTP members who is not only not arrested, but still actively involved in the information security community.

Then there are other personalities that went dark, whom are presumably also not arrested.

Unless Thomas Asaro can name names, that was a bluff.

Re: Security Notification and Linode Manager Password Reset

#33
post #5

Sure wish they had sent out an email notification to users instead of a slashdotted blog post. Now the question is how long can Linode stand in the face of these sorts of hacks and network attacks in the face of stiff VPS competition.

Be grateful they posted something to Slashdot at all. Back in 2013 they didn't do that for DAYS after the event happened and someone else posted what happened.

Re: Security Notification and Linode Manager Password Reset

#34
post #16

Earlier quoted context omitted.

When did you start rewriting it? It doesn't take years to replace this stuff.

I was hired in July and have been driving most of this effort and we're shipping rewritten versions of some parts of our infra soon™

That sounds good, at least, thanks for letting us know.

Re: Security Notification and Linode Manager Password Reset

#35

I'm fairly confident that Linode has been compromised since July, if not earlier. PagerDuty moved off of Linode after an incident in July. We've been under strict gag orders from legal about that incident until today when Linode finally announced their compromise. Really, the only way I can see that this attacker could have gotten in the way they did (they logged into our Linode Manager account on the first try using…

If the Linode Manager database only stores the hash, how would they know the password?

How did you find out about the illicit login?

Re: Security Notification and Linode Manager Password Reset

#36

I'm fairly confident that Linode has been compromised since July, if not earlier. PagerDuty moved off of Linode after an incident in July. We've been under strict gag orders from legal about that incident until today when Linode finally announced their compromise. Really, the only way I can see that this attacker could have gotten in the way they did (they logged into our Linode Manager account on the first try using…

If the Linode Manager database only stores the hash, how would they know the password? How did you find out about the illicit login?

If they've been more compromised than something like a simple SQL injection vulnerability, it could be something like added code to log passwords or post them off somewhere else.

Re: Security Notification and Linode Manager Password Reset

#37

I'm fairly confident that Linode has been compromised since July, if not earlier. PagerDuty moved off of Linode after an incident in July. We've been under strict gag orders from legal about that incident until today when Linode finally announced their compromise. Really, the only way I can see that this attacker could have gotten in the way they did (they logged into our Linode Manager account on the first try using…

If the Linode Manager database only stores the hash, how would they know the password? How did you find out about the illicit login?

If the Linode Manager database only stores the hash, how would they know the password?

Weak password? Weak hashing algorithm?

Re: Security Notification and Linode Manager Password Reset

#38
post #5

Sure wish they had sent out an email notification to users instead of a slashdotted blog post. Now the question is how long can Linode stand in the face of these sorts of hacks and network attacks in the face of stiff VPS competition.

(Linode Employee) Already got it covered, we are sending out an email to everyone in batches, but pushed out the blog first since it can be seen by everyone right away.

Re: Security Notification and Linode Manager Password Reset

#39

I'm fairly confident that Linode has been compromised since July, if not earlier. PagerDuty moved off of Linode after an incident in July. We've been under strict gag orders from legal about that incident until today when Linode finally announced their compromise. Really, the only way I can see that this attacker could have gotten in the way they did (they logged into our Linode Manager account on the first try using…

If the Linode Manager database only stores the hash, how would they know the password? How did you find out about the illicit login?

> If the Linode Manager database only stores the hash, how would they know the password?

Hashes can be turned back into plain text, it is just computationally expensive to do so. Hashing only slows down an attack (and or increases the cost), it doesn't not mitigate one. In particular if the hashes aren't salted then a rainbow table is an extremely effective way of breaking all of the hashes concurrently.

The main method of doing so: Generate the hash for every combination of typable characters up to a given length (e.g. MD5() A-Za-z0-9 & specials up to 8x characters).

This can be mitigated using a more computationally expensive hashing routine (or increasing the work factor on a less computationally expensive one) and salts.

But given enough time OR computing power, all hashes will be broken. AWS makes breaking hashes a lot cheaper as you can bid on spare capacity and perform the operations relatively cheaply.

Re: Security Notification and Linode Manager Password Reset

#40

I'm fairly confident that Linode has been compromised since July, if not earlier. PagerDuty moved off of Linode after an incident in July. We've been under strict gag orders from legal about that incident until today when Linode finally announced their compromise. Really, the only way I can see that this attacker could have gotten in the way they did (they logged into our Linode Manager account on the first try using…

Interestingly, while I know for a fact that you're correct. When someone asked about this on #linode the ops immediate reaction was to deny it (as it was every other time they got hacked).

alexf: any legitimacy to this https://news.ycombinator.com/item?id=10845619 ?

naqod: again I'm not in ops so I don't have the deets, but my gut reaction is to say No effing Way

You'd imagine that by now they wouldn't be so quick to deny this stuff.

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