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IT Security and Insecurity Portal |
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What if the <> tags are filtered? |
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 Posted: Sun Feb 10, 2008 5:21 pm |
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| Panic_Mode |
| Active user |
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| Joined: Feb 09, 2008 |
| Posts: 39 |
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Exept for <> tags what other way can be used to test if a site is vulnerable...?
I found XSS vulnerability by injecting javascript through the sites search engine but the admin found it and fixed that. Now I use >" <script> tags etc and the engine ignores them and just continues searching...
Is there another place in the site that I can test if it is capable of XSS ? |
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| Posted: Sun Feb 10, 2008 5:34 pm |
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| pexli |
| Valuable expert |
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| Joined: May 24, 2007 |
| Posts: 665 |
| Location: Bulgaria |
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< = %3C
> = %3E
< = chr(60)
> = chr(62) |
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| Posted: Sun Feb 10, 2008 5:40 pm |
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| Panic_Mode |
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| Joined: Feb 09, 2008 |
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yeh indeed 
chance of being filtered too? |
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| Posted: Wed Mar 12, 2008 2:07 am |
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| Oilik |
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| Joined: Mar 05, 2008 |
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| koko wrote: | < = %3C
> = %3E |
I thought your browser automatically made those when putting < and > in the URL bar and clicking enter[also applies to PostData], and that file on the server automatically makes that < and >, so it would make no difference.
Correct me if I'm wrong.. |
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| Posted: Fri Jun 13, 2008 9:02 pm |
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| lenny |
| Valuable expert |
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| Joined: May 15, 2008 |
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You can't really do anything about that, unless the php script is dumping anything into a javascript already, where it would just be a case of escaping the quotes and adding a semicolon... then doing what you like!
For example, I dealt with a script that did this:
| Quote: | ...html stuff...
<script>
var abc = "blahblahblah {$php_variable} blah balh blah";
</script>
...html stuff... |
The php variable was sanitized with simple "addslashes" so I was able to escape the the initial quotes despite the addslashes, turning it into this:
| Quote: | ...html stuff...
<script>
var abc = "blahblahblah "; window.location="XSS in here"; // blah balh blah";
</script>
...html stuff... |
I did so using
| Quote: | | "; window.location="XSS in here"; // |
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www.waraxe.us Forum Index -> Cross-site scripting aka XSS
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