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Tijs  
#1 Posted : Friday, May 24, 2013 11:12:05 AM(UTC)
Tijs

Rank: Sienn Developer

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Groups: Administration
Joined: 10/8/2008(UTC)
Posts: 25
Man
Location: Netherlands

Thanks to Ryszard!

There are some words about anti-XSS tools.

XSS - Some theory:
https://en.wikipedia.org/wiki/Cross-site_scripting

And tools to check if forms and query strings are safe:
TamperIE - integrated with IE simple and old tool: http://www.bayden.com/tamperie/ XSS-Me - Firefox Plugin: http://labs.securitycompass.com/exploit-me/

TamperIE

There are two windows: "TamperIE Control Panel" and "TamperIE Edit Request".
In "Control Panel" we can filter POST, GET, Query string parameters and choose request to test.
With '*' we test all requests.
In "Edit Request" we can manipulate request data: modify existing data, remove and add new one.
There are few predefined values to choose from dropdown to try "standard" XSS attacks.

XSS-Me is comfortable plugin - just open XSS Me Sidebar.
It shows recognized forms with their fields and allow change values or even run all tests against chosen fields.

As long as we use ASP.NET with strong models the ASP.NET infrastructure takes care of proper encoding and validating fields.

P.S.
We can use that tools to check applications against another kind of attacks.
Their works as "man in the middle". Even authorized user should not get access to data does not belongs to him.
Every action have to check input data against business rules. And use view models adequate to expected results.

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