Wireless Security. Let's make security K.O.R.E.A

[ How to find vulnerabilities in websites | The Newbie Guide ]


[+] XSS :
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|- Definition: Cross Site Scripting.
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|- Technical Definition: Injecting HTML in a page. Permanent or not.
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|- Example:
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|- Where is it found:
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| [ Search Engines ] || [ GET Variables ] || [ Different Forms ]
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|- Spotting it:
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| [ Search Engines ]
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| If the search you input, is outputted on the page. the chances are
| it is vulnerable.
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| [ GET Variables ]
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| If the GET var is outputted on the page, it is most likely
| the site is vulnerable, Checking for hidden tags also is helpfull,
| sometimes the GET var is stored in a hidden tag to be used later.
|
| [ Different Forms ]
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| Login forms, any input form you can find in a site, could be
| vulnerable, checking it, by checking if the input is outputted.
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[+] RFI / LFI :
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| - Definition: Remote File Inclusion | Local File Inclusion.
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| - Technical Definition:
| [ RFI ] Execution of a remote script on a target server,
| by including it.
| [ LFI ] Execution, or disclosure of files, that are on the same
| target server.
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| - Example:
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|
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| - Where is it found:
| [ GET Variables ]
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| - Spotting it:
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| [ GET Variables ]
|
| It is mostly common sense, if you see the main page redirecting to other pages, by a GET var, it is most likely
vulnerable.
| sometimes, it might be hiding behind an integer, you can spot it by, changing that get var to anything else, and if
you see any main(); errors,
| it is vulerable.
| a common way to bypass some extension restrctions, is to nullbyte the extension, by:

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[+] SQL Injection :
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| - Definition: [ the name says it all ]
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| - Techical definition : Injecting a SQL, to echo out data from other tables / rows. etc.
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| - Example:
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|
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| - Where is it found:
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| [ GET Variables ] || [ Login Forms ] || [ Search Engine ] || [ Different Forms ]
|
| - Spotting it:
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| [ GET variables ]
|
| Most of the times, it is an integer that we are looking for in a GET var, for example : ' ?id=123 ' ' ?cat=22 ' ..
etc.
| if we change that integer to a quote or anything else, we could get a MySQL error, then we know that this site
might be vulnerable.
|
| [ Login Forms ]
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| We can try to inject a normal SQL injection in a login form, because most login forms pass thru a SQL query to check
for data.
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| [ Search Engine ]
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| Same applies here, most search engines looks for the info in a SQL DB. we can always inject that.
|
| [ Different Forms ]
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| The general rule applies, you can try a random SQL injection, with different quote style to see if it would show any
errors or not.
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Well that was it, I hope you learned something from this tutorial, and questions / comments are welcomed.