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Re: [WEB SECURITY] Importing large code piece into Javascript context wi

from [Amit Klein (AKsecurity)] Network Security [Permanent Link]
Subject: Re: [WEB SECURITY] Importing large code piece into Javascript context without SCRIPT SRC=...
Date: Fri, 14 Oct 2005 22:00:08 +0200 
On 14 Oct 2005 at 11:14, Jeremiah Grossman wrote:



Oh ok, I see what you've done here now. This is quite clever. 


Thanks :-)

You're  

basically using the IFRAME URL as a source for receiving JS code,  
which you evaluate later when it becomes available. Nice.



Yep, thanks!
 

In my Phishing w/ Superbait talk, I used a similar technique in  
reverse to pass large amounts of data off-domain. 2K blocks at a time.



Yes, but there's some difference: in your paper you use the query part of an 
IMG to move 
data off-domain. You don't face the problem of importing data from off-domain, 
which is 
slightly harder (I think), if you undertake not to use the script tag (with 
SRC).

-Amit
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