full-disclosure - Re: A tool to identify the MD5 certs on FF

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Message-ID: <20090102193030.GA3340@thorin.deepco.local>
Date: Fri, 2 Jan 2009 20:30:31 +0100
From: Aiko Barz <aiko@...pco.de>
To: "Memisyazici, Aras" <arasm@...edu>
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: Re: A tool to identify the MD5 certs on FF

On Thu, Jan 01, 2009 at 06:19:01PM -0500, Memisyazici, Aras wrote:
> SSL Blacklist now detects and warns about certificate chains that use the MD5 algorithm for RSA signatures.

Does anybody know a plugin that keeps track of the used certificates and
CAs? I tried "certificate patrol" [1]. But I wasn't too happy...

I would like to get warnings, whenever a fingerprint changes. For
example:

INFO:    The certificate fingerprint has changed.
         The new certificate is signed by the same CA.
         Details...

WARNING: The certificate fingerprint has changed.
         The new certificate is signed by a different CA.
         A possible MITM attack has been detected.
         Details...

So long,
    Aiko

[1]: https://addons.mozilla.org/en-US/firefox/addon/6415
-- 
:wq ✉

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