Dear Geo.,
G> If the application is what exposes the URI handling routine to
untrusted
G> code from the internet,
Sorry, Untrusted code from the internet ?
The user clicks on a mailto link, is that untrusted code?
Or the mailto link is clicked for him.
Anyways, the mailto link
POST IE7 has a flaw/threat/vulnerablity it hasn't had PRE IE7.
G> then it's the application's job to make sure that
G> code is trusted before exposing system components to it's commands, no?
Yes to a certain degree it is, like I said mitigation is fine, though
it shouldn't be the final word here, _if_ my assumptions I derive from
the things I know and just tested are correct. I might be wrong, but I
dont' think so =)
The problem here is the root cause, the root cause is that IE7
introduced a problem, you can call it "vulnerability" or "Threat" or
whatever floats your boat, I don't care, my point is, in my opinion
the handler itself is broken.
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http://secdev.zoller.lu
Thierry Zoller
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