hello friends , today i will
explain all the methods that are being used to hack a website or
websites database. This is the first part of the hacking websites
tutorial where i will explain in brief all methods for hacking or
defacing websites. Today I will give you the overview and in later tutorials we will discuss them one by one with practical examples.
So guys get ready for first part of
Hacking websites class…. Don’t worry i will also tell you how to protect
your websites from these attacks and other methods like hardening of
SQL and hardening of web servers and key knowledge about CHMOD rights
that what thing should be give what rights…
Note : This post is only for Educational Purpose only.
What are basic things you should know before website hacking?
First of all everything is optional as i will start from very scratch. But you need atleast basic knowledge of following things..
1. Basics of HTML, SQL, PHP.
2. Basic knowledge of Javascript.
3. Basic knowledge of servers that how servers work.
4. And most important expertize in removing traces otherwise u have to suffer consequences.
Now First two things you can learn from a very famous website for basics of Website design with basics of HTML,SQL,PHP and javascript.
http://www.w3schools.com/
And for the fourth point that you should be expert in removing traces. I will explain this in my future articles.
So keep reading.. or simply subscribe my posts..As we know traces are
very important. Please don’t ignore them otherwise you can be in big
trouble for simply doing nothing. so please take care of this step.
METHODS OF HACKING WEBSITE:
1. SQL INJECTION
2. CROSS SITE SCRIPTING
3. REMOTE FILE INCLUSION
4. LOCAL FILE INCLUSION
5. DDOS ATTACK
6. EXPLOITING VULNERABILITY.
1. SQL INJECTION
First of all what is SQL injection? SQL injection is a type of
security exploit or loophole in which a attacker “injects” SQL code
through a web form or manipulate the URL’s based on SQL parameters. It
exploits web applications that use client supplied SQL queries.
The primary form of SQL injection consists of direct insertion of code into user-input variables that are concatenated with SQL commands and executed. A less direct attack injects malicious code into strings that are destined for storage in a table or as metadata. When the stored strings are subsequently concatenated into a dynamic SQL command, the malicious code is executed.
The primary form of SQL injection consists of direct insertion of code into user-input variables that are concatenated with SQL commands and executed. A less direct attack injects malicious code into strings that are destined for storage in a table or as metadata. When the stored strings are subsequently concatenated into a dynamic SQL command, the malicious code is executed.
2. CROSS SITE SCRIPTING
Cross site scripting (XSS) occurs when a user inputs malicious data into a website, which causes the application to
do something it wasn’t intended to do. XSS attacks are very popular and
some of the biggest websites have been affected by them including the
FBI, CNN, Ebay, Apple, Microsft, and AOL.
Some website features commonly vulnerable to XSS attacks are:
• Search Engines
• Login Forms
• Comment Fields
Some website features commonly vulnerable to XSS attacks are:
• Search Engines
• Login Forms
• Comment Fields
Cross-site scripting holes are web application vulnerabilities that
allow attackers to bypass client-side security mechanisms normally
imposed on web content by modern browsers. By finding ways of injecting
malicious scripts into web pages, an attacker can gain elevated access
privileges to sensitive page content, session cookies, and a variety of
other information maintained by the browser on behalf of the user.
Cross-site scripting attacks are therefore a special case of code
injection.
I will explain this in detail in later hacking classes. So keep reading..
3. REMOTE FILE INCLUSION
Remote file inclusion is the most often found vulnerability on the website.
Remote File Inclusion (RFI) occurs when a remote file, usually a shell (a graphical interface for browsing remote files and running your own code on a server), is included into a website which allows the hacker to execute server side commands as the current logged on user, and have access to files on the server. With this power the hacker can continue on to use local
exploits to escalate his privileges and take over the whole system.
RFI can lead to following serious things on website :
Remote file inclusion is the most often found vulnerability on the website.
Remote File Inclusion (RFI) occurs when a remote file, usually a shell (a graphical interface for browsing remote files and running your own code on a server), is included into a website which allows the hacker to execute server side commands as the current logged on user, and have access to files on the server. With this power the hacker can continue on to use local
exploits to escalate his privileges and take over the whole system.
RFI can lead to following serious things on website :
- Www
- Cool
- Hacking Tutorials
- Professional web design
- Code execution on the web server
- Code execution on the client-side such as Javascript which can lead to other attacks such as cross site scripting (XSS).
- Denial of Service (DoS)
- Data Theft/Manipulation
4. LOCAL FILE INCLUSION
Local File Inclusion (LFI) is when you have the ability to browse through the server by means of directory transversal. One of the most common uses of LFI is to discover the /etc/passwd file. This file contains the user information of a Linux system. Hackers find sites vulnerable to LFI the same way I discussed for RFI’s.
Let’s say a hacker found a vulnerable site, www.target-site.com/index.php?p=about, by means of directory transversal he would try to browse to the /etc/passwd file:
Local File Inclusion (LFI) is when you have the ability to browse through the server by means of directory transversal. One of the most common uses of LFI is to discover the /etc/passwd file. This file contains the user information of a Linux system. Hackers find sites vulnerable to LFI the same way I discussed for RFI’s.
Let’s say a hacker found a vulnerable site, www.target-site.com/index.php?p=about, by means of directory transversal he would try to browse to the /etc/passwd file:
www.target-site.com/index.php?p= ../../../../../../../etc/passwd
I will explain it in detail with practical websites example in latter sequential classes on Website Hacking.
5. DDOS ATTACK
Simply called distributed denial of service attack. A denial-of-service attack (DoS attack) or distributed denial-of-service attack (DDoS attack)
is an attempt to make a computer resource unavailable to its intended
users. Although the means to carry out, motives for, and targets of a
DoS attack may vary, it generally consists of the concerted efforts of a
person or people to prevent an Internet site or service from
functioning efficiently or at all, temporarily or indefinitely. In DDOS
attack we consumes the bandwidth and resources of any website and make
it unavailable to its legitimate users.
6.EXPLOTING VULNERABILITY
Its not a new category it comprises of above five categories but i
mentioned it separately because there are several exploits which cannot
be covered in the above five categories. So i will explain them
individually with examples. The basic idea behind this is that find the
vulnerability in the website and exploit it to get the admin or
moderator privileges so that you can manipulate the things easily.
..
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