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LastPass Now Checks If Your Sites Are Affected by Heartbleed

blog.lastpass.com

51–60 of 94 posts

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#51

Apparently LastPass is still vulnerable: https://lastpass.com/heartbleed/?h=LastPass.com

perhaps it has been updated in the last 12 minutes, but that doesn't say LastPass is vulnerable. They are using a new cert, it's just saying they might be vulnerable because LastPass can't detect the server's operating system.

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#52
Wait. When I click "Security Check" in my LastPass Tools... menu (this is in Chrome), I get taken to an internet-hosted web page where I'm prompted to enter my master password. [1] I am not taken to a chrome:// page or some other client-side tool.

I take this to mean that I'm giving LastPass's web server my actual master password, and that they will do server-side decryption of my Vault and have server-side access to my passwords in cleartext.

Is that accurate?

[1] https://lastpass.com/index.php?securitychallenge=1&lang=en-U...

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#54
post #10

Earlier quoted context omitted.

We haven't found a way to do this -- we're using openssl s_client to get the start date, but one of our own certificates for LastPass.eu also reissued without changing the date so we know it's a problem. We wish we had all site's certificate fingerprints from before this started so we could utilize that data -- if anyone has it, an email to securit@lastpass.com would be greatly appreciated.

I believe if you use a new private key but sign the same CSR the dates will not change. Ideally the old certs should be revoked which should provide some info on this. I saw this explanation on the discussion of the herokuapp.com's cert's dates not changing.

This is entirely up to the issuing CA's process. Thawte, for example, happily revokes-and-reissues certificates for free (perhaps only for "enterprise" customers?), and the newly issued certificate has the same end-validity date as the revoked certificate but the start-validity date is set to the time of issue.

I notice herokuapp.com's CA is DigiCert, so perhaps they have the opposite policy, of giving the reissued cert the same start date as the revoked cert.

I don't think there's a standard field in an X.509 cert for issue date.

It's possible to download a CA's CRL and look for revoked certs, but all you get are serial numbers and revocation dates, not subject names.

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#55
post #52

Wait. When I click "Security Check" in my LastPass Tools... menu (this is in Chrome), I get taken to an internet-hosted web page where I'm prompted to enter my master password. [1] I am not taken to a chrome:// page or some other client-side tool. I take this to mean that I'm giving LastPass's web server my actual master password, and that they will do server-side decryption of my Vault and have server-side access to…

Per what pwman said in a previous thread, I believe it's decrypting your info client-side using JS.

https://news.ycombinator.com/item?id=7554974

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#56
post #52

Wait. When I click "Security Check" in my LastPass Tools... menu (this is in Chrome), I get taken to an internet-hosted web page where I'm prompted to enter my master password. [1] I am not taken to a chrome:// page or some other client-side tool. I take this to mean that I'm giving LastPass's web server my actual master password, and that they will do server-side decryption of my Vault and have server-side access to…

LastPass is proprietary closed source software. For all you know they've never not had access to your vault.

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#57
post #52

Wait. When I click "Security Check" in my LastPass Tools... menu (this is in Chrome), I get taken to an internet-hosted web page where I'm prompted to enter my master password. [1] I am not taken to a chrome:// page or some other client-side tool. I take this to mean that I'm giving LastPass's web server my actual master password, and that they will do server-side decryption of my Vault and have server-side access to…

NO! It's all done locally via JavaScript -- we never want to get your master password / encryption key -- we go through great pains to ensure that never happens.

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#58
post #12

Earlier quoted context omitted.

We've always had a full blown web browser in the app -- it's been the only viable way to fill passwords in for years. Literally the first option we added. We also have an extension into Dolphin, and you can utilize Chrome utilizing our fill method -- if you don't like them there are options to disable them too reducing the perceived extra bulk.

"it's been the only viable way to fill passwords in for years" Call me old fashioned, but I'd rather copy/paste than rely on the web browser within the app. The lack of attention for the desktop Firefox extension is what drove me to alternatives. After switching away, I realized I was paying for a payed proprietary system with no real benefits from an open source solution.

Regarding firefox -- Are you speaking of the fact that Mozilla refused our Firefox updates for over a year?

We're happy you found a tool that works for you -- that's what we want everyone to do -- it doesn't need to be LastPass but people need to use something -- reusing passwords constantly is just painful.

Re: LastPass Now Checks If Your Sites Are Affected by Heartbleed

#60
post #20

Earlier quoted context omitted.

OK I'll bite ... why should I not use my browser's built in pw manager? (e.g. Safari on OS X Mavericks) I can see an argument about cross-platform use but is there another reason or reasons? thanks,

The OS X Keychain, which is used by Safari, can be cracked via John The Ripper.

*for some definition of "can be cracked"
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