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Re: ISA Server and SQL Injection

Subject: Re: ISA Server and SQL Injection
Date: Tue, 1 Mar 2005 15:44:41 -0800 (PST)
2. Output validation is much better then Input validation, because most
problems are related to incorrectly encoding input parameters into
output. In addition proper output encoding allows to use critical
characters like < > within the application. This is especially important
in back-office applications.

I don't totally agree with that.  If the input injection allows the
attacker to select a different parameter, it may already be too late for
output validation.  Worse, there maybe nothing the output validator can do
if the result is encoded validly.

Christopher Baus

========
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http://www.baus.net/

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