WebApp Sec mailing list archives

RE: Magic Quotes


From: "Matt Fisher" <mfisher () spidynamics com>
Date: Wed, 11 Oct 2006 11:16:58 -0400



The Santy worm used a simple double-encoded single tick to bypass Magic Quotes.  The real problem was the code: it then 
urldecoded the single-encoded tick at that point, but framework tricks like Magic Quotes are not the "end-all be-all" 
defense by any means.  In fact, Magic Quotes was built out ofpure functionality and not security according to an 
interview with Lerdoff (sp?) I had found. 



-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of Tomek Perlak
Sent: Tuesday, October 10, 2006 6:20 AM
To: webappsec () securityfocus com
Subject: Re: Magic Quotes


DokFLeed wrote:
(..)

if there is noway around Magic Quotes, then why is every developer 
against it ?
Dok

I guess it's because it adds a layer of complexity to your code?

Some servers have MQs on, some don't (and you might not have any control over that), so you have to code for two cases.

Also, if data sanitation is being done using other functions (such as mysql_real_escape_string if you happen to use 
mysql), the MQs feature is a nuisance to deal with, to say the least.

// tp;

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