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List of Sites Affected by Cloudflare's HTTPS Traffic Leak

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Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#101
post #96

Oh crap. I've entered my banking password into Transferwise quite a few times. Welp, time to change all my passwords.

> Welp, time to stop using the same password for multiple services. > Welp, time to start using a password manager. FTFY

Yes, definitely a good suggestion.

I already use Lastpass, which makes regenerating all my passwords a little easier.

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#103
post #99
post #7

I wrote this(1) script to check for any affected sites from local Chrome history. It checks for the header `cf-ray` in the response headers from the domain. It is not an exhaustive list but I was able to find few important ones like my bank site. 1: https://gist.github.com/kamaljoshi/2cce5f6d35cd28de8f6dbb27d...

I wish 1Password had a feature where you could put in a list of domains like this or a "Auto Change Possibly Compromised Passwords" feature.

Isn't this what Watchtower is supposed to be for? I have no idea if AgileBits is going to add this list to Watchtower, though.

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#104
post #96

Oh crap. I've entered my banking password into Transferwise quite a few times. Welp, time to change all my passwords.

> Welp, time to stop using the same password for multiple services. > Welp, time to start using a password manager. FTFY

OP isn't saying they used the same password for transferwise as for their bank. Transferwise allows you to log into your internet banking and authorize a transaction through their site. You actually give them your internet banking password, regardless of how you log into their site.

Which is pretty strange in itself, to trust a 3rd party with your internet banking password, but that's how it works.

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#105

Apparently root case was: /* generated code */ if ( ++p == pe ) goto _test_eof; "The root cause of the bug was that reaching the end of a buffer was checked using the equality operator and a pointer was able to step past the end of the buffer. This is known as a buffer overrun. Had the check been done using >= instead of == jumping over the buffer end would have been caught." Detailed timeline: "2017-02-18 0011 Tweet…

It's a good postmortem (describes WHAT happened), but it doesn't really communicate the impact to Cloudflare customers or their end users (describe WHY people should care).

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#106

Earlier quoted context omitted.

@jgrahamc: If this problem doesn't justify emailing all proxy service customers, what problem would?

We are emailing them all, but we are starting with those that we know had data cached by a search engine.

Has anything similar to this happened before?

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#107
post #97

Just got this classy spam from dyn.com. Wonder if they're going through this list emailing every domain contact. > As you may be aware, Cloudflare incurred a security breach where user data from 3,400 websites was leaked and cached by search engines as a result of a bug. Sites affected included major ones like Uber, Fitbit, and OKCupid. > Cloudflare has admitted that the breach occurred, but Ormandy and other securit…

It's clever but feels at least a 3/10 shitty. Dyn is an old company and back in the day they provided free subdomains while nobody else did. I haven't used them recently because their pricing seems so high. How do others feel about them?

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#108
post #99
post #7

I wrote this(1) script to check for any affected sites from local Chrome history. It checks for the header `cf-ray` in the response headers from the domain. It is not an exhaustive list but I was able to find few important ones like my bank site. 1: https://gist.github.com/kamaljoshi/2cce5f6d35cd28de8f6dbb27d...

I wish 1Password had a feature where you could put in a list of domains like this or a "Auto Change Possibly Compromised Passwords" feature.

LastPass sort of has that.

Re: List of Sites Affected by Cloudflare's HTTPS Traffic Leak

#110
post #3

I'm confused by the "not affected" remarks. I thought the issue was any site which passes data through cloudflare could be leaked by requests to a different site, due to their data being in memory. Have I misunderstood?

Inside of TLS, 1Password uses an additional SRP handshake that negotiates a static secret (like a DHE), which 1Password uses to both authenticate the user and set up an additional AES-GCM transport encryption. So even a full memory dump of what's transported in TLS should, as long as it's properly implemented, only reveal an SRP authentication session and subsequently symmetrically encrypted data. (And inside that SR…

I typically think of "encryption inside of encryption" as a boondoggle more likely to somehow break things than make things stronger.

My confidence in that has dropped slightly in the past day.

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