Graham Anderson wrote:
> Can the server variable 'user agent'  be modified/spoofed  by the user?
> 
>  I have a bunch movies that I want to only open if the user agent
> contains Quicktime Player...
> In my case, if the user agent string contains Quicktime Player, a movie
> url is written for Quicktime to open....
> If the user agent contains  a browser, I want php to deny access....not
> write the url for Quicktime to read
> 
> is is possible for a script kiddie to spoof user agent server variables
> to fool the server ?

Of course.  Some browsers, like Opera, even have a preferences thing
where you can type in whatever user agent string you want.  But even
without that it is a trivial thing to spoof.  Anything that comes across
the wire to you can be spoofed.  This includes the Host: header, the
Referer: header, the User-Agent, cookies, whatever.

-Rasmus

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