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. -- http://secdev.zoller.lu Thierry Zoller Fingerprint : 5D84 BFDC CD36 A951 2C45 2E57 28B3 75DD 0AC6 F1C7
