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Date: Sat, 5 May 2012 20:40:22 -0400
Message-ID: <CABy5rUa9HW0n2YCTLFzH7CBzjmU3UcFn3ui0QCV1wgqooZOQwA@mail.gmail.com>
To: internals@lists.php.net
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Subject: Re: [PHP-DEV] JPEG Upload
From: preinheimer@gmail.com (Paul Reinheimer)

I dealt with jpegs with injected metadata quite a bit at a previous employer.

In the end we ended up confirming the file was a proper image with the
filetype functions, then stripping the metadata using some command
line tools, and finally using a blacklist for key strings (like <?php)
that could show up in the file.


paul