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never underestimate the stupidity of IE and outlook.

if you take an html file, name it foo.jpg and send it with a mime-type of image/jpeg, IE 5 on the mac and IE 4 on windows will happily parse and render it as html. (probably some versions of outlook exhibit this broken behavior too).

this technique was once used in a hotmail exploit. email someone a "jpg" and it could grab their password cookie and submit it to another site.

if securityfocus hadn't changed the structure of their bugtraq archives and broken my bookmarks, i could give you a link...

i don't think it's quite dumb enough to run an .exe the same way but there's still a lot of mischief that can be done with html+javascript/vbscript

anders pearson


In reply to Re: (ichimunki) Re: Security issues when allowing file upload via CGI by thraxil
in thread Security issues when allowing file upload via CGI by George_Sherston

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