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[liberationtech] Burn Note

Enrique Piraces piracee at hrw.org
Wed Feb 1 06:51:29 PST 2012


+1, please do.

-----Original Message-----
From: liberationtech-bounces at lists.stanford.edu [mailto:liberationtech-bounces at lists.stanford.edu] On Behalf Of Jacob Appelbaum
Sent: Wednesday, February 01, 2012 4:11 AM
To: liberationtech at lists.stanford.edu
Subject: Re: [liberationtech] Burn Note

On 01/31/2012 07:40 PM, Steve Weis wrote:
> I would not use Burn Note.
> 
> I just tried it out and found they are vulnerable to cross-site scripting
> attacks. If you were logged into a Burn Note account, I could hijack it by
> getting you to click one of their links. That would let me see all the
> outstanding notes your account created which haven't been read yet.
> 
> I also found that I was able to post junk data to their application
> endpoints to create broken notes. That means the input is not being
> sanitized, which makes it more likely to be exploitable. This is a common
> cause of vulnerabilities like SQL injection.
> 
> Finally, based on their technical writeup, I don't trust their ability to
> use encryption properly.
> 

Nicely done. If you've already disclosed, please do share the exploits
here after they've patched?

All the best,
Jacob
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