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Get cookie from browser from IIS

I'm trying to get a cookie that is from another domain. The cookie is on the users browser and I was told that I could query the cookie through IIS... Is that true?
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cobolinx1
Asked:
cobolinx1
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1 Solution
 
AdamSenior DeveloperCommented:
No, this is not possible - think of all the ways security could be breached if you could read cookies from other domains!

As cookies are stored in the browser, the web server makes little difference.

There are several ways of communicating with other domains though.

The simplest is to download an image from the other domain

So, on a web page from www.this.com, you could have something like this:

<img src="http://www.that.net/transfer.aspx?key1=value1&key2=value2" style="width:1px; height:1px" />

Open in new window


transfer.aspx can process whatever data is sent. When it returns an image (make it a 1x1 transparent gif, or even nothing at all - an image with no data and a '200 OK' HTTP response doesn't (in my experience) show a broken image on the page), attach cookies to the image (all files - html, aspx, images, javascript etc can come with cookies).

When you visit http://www.that.net/, your cookie should be there. This is basically the technique used by advertisers to track your movements across the web.

Don't rely too heavily on this though - there are lots of ways of blocking 'third-party' cookies (for the reason mentioned above) so it may not work in every browser.
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AdamSenior DeveloperCommented:
Hi,

Was this information useful?

Regards

Adam
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cobolinx1Author Commented:
It was but I don't think my security group will allow that plus I need to make sure it'll work in mozilla and ie... neat trick though..I'll give you some points when I can figure this out.
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AdamSenior DeveloperCommented:
OK - let me know how it works out.
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AdamSenior DeveloperCommented:
I answered the question - and the author acknowledged it was useful.
I think I should get the points
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Amandeep Singh BhullarCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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