full-disclosure-uk August 2008 archive
Main Archive Page > Month Archives  > full-disclosure-uk archives
full-disclosure-uk: Re: [Full-disclosure] OpenID/Debian PRNG/DNS

Re: [Full-disclosure] OpenID/Debian PRNG/DNS Cache poisoning advisory

From: Eric Rescorla <ekr_at_nospam>
Date: Fri Aug 08 2008 - 15:06:25 GMT
To: "Ben Laurie" <benl@google.com>


At Fri, 8 Aug 2008 11:50:59 +0100,
Ben Laurie wrote:
> However, since the CRLs will almost certainly not be checked, this
> means the site will still be vulnerable to attack for the lifetime of
> the certificate (and perhaps beyond, depending on user
> behaviour). Note that shutting down the site DOES NOT prevent the
> attack.
>
> Therefore mitigation falls to other parties.
>
> 1. Browsers must check CRLs by default.

Isn't this a good argument for blacklisting the keys on the client side?

-Ekr



Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/