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Joined: Feb 2011
23-02-2011, 04:07 PM
Hello everyone i have to complete a seminar and presentation report on SQL INJECTION so please send me report code ppt etc. iwill b highly thankfull to u all.
plss u can mail me at firstname.lastname@example.org
thnx nd regards:
Pradeep kumar Yadav
Active In SP
Joined: Apr 2011
19-04-2011, 11:28 AM
you can refer these pages to get the details on sql-injection
Joined: Apr 2012
18-07-2012, 04:33 PM
SQL Injection.docx (Size: 24.22 KB / Downloads: 24)
A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application. A successful SQL injection exploit can read sensitive data from the database, modify database data (Insert/Update/Delete), execute administration operations on the database (such as shutdown the DBMS), recover the content of a given file present on the DBMS file system and in some cases issue commands to the operating system. SQL injection attacks are a type of injection attack, in which SQL commands are injected into data-plane input in order to effect the execution of predefined SQL commands.
• SQL injection attacks allow attackers to spoof identity, tamper with existing data, cause repudiation issues such as voiding transactions or changing balances, allow the complete disclosure of all data on the system, destroy the data or make it otherwise unavailable, and become administrators of the database server.
• SQL Injection is very common with PHP and ASP applications due to the prevalence of older functional interfaces. Due to the nature of programmatic interfaces available, J2EE and ASP.NET applications are less likely to have easily exploited SQL injections.
• The severity of SQL Injection attacks is limited by the attacker’s skill and imagination, and to a lesser extent, defense in depth countermeasures, such as low privilege connections to the database server and so on. In general, consider SQL Injection a high impact severity.
Joined: Apr 2012
22-08-2012, 10:21 AM
SQL injection is a technique often used to attack databases through a website. This is done by including portions of SQL statements in a web form entry field in an attempt to get the website to pass a newly formed rogue SQL command to the database (e.g. dump the database contents to the attacker). SQL injection is a code injection technique that exploits a security vulnerability in a website's software. The vulnerability happens when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly typed and unexpectedly executed. SQL commands are thus injected from the web form into the database of an application (like queries) to change the database content or dump the database information like credit card or passwords to the attacker. SQL injection is mostly known as an attack vector for websites but can be used to attack any type of SQL database.
What is SQL Injection?
SQL Injection is one of the many web attack mechanisms used by hackers to steal data from organizations. It is perhaps one of the most common application layer attack techniques used today.
Web applications allow legitimate website visitors to submit and retrieve data to/from a database over the Internet using their preferred web browser.
Databases are central to modern websites – they store data needed for websites to deliver specific content to visitors and render information to customers, suppliers, employees and a host of stakeholders. User credentials, financial and payment information, company statistics may all be resident within a database and accessed by legitimate users through off-the-shelf and custom web applications. Web applications and databases allow you to regularly run your business.
SQL Injection is the hacking technique which attempts to pass SQL commands through a web application for execution by the backend database. If not santised properly, web applications may result in SQL Injection attacks that allow hackers to view information from the database and/or even wipe it out.
Firewalls and similar intrusion detection mechanisms provide little or no defense against full-scale SQL Injection web attacks.
Since your website needs to be public, security mechanisms will allow public web traffic to communicate with your web application/s (generally over port 80/443). The web application has open access to the database in order to return (update) the requested (changed) information.
In SQL Injection, the hacker uses SQL queries and creativity to get to the database of sensitive corporate data through the web application.
SQL or Structured Query Language is the computer language that allows you to store, manipulate, and retrieve data stored in a relational database (or a collection of tables which organize and structure data). SQL is, in fact, the only way that a web application (and users) can interact with the database. Examples of relational databases include Oracle, Microsoft Access, MS SQL Server, MySQL, and Filemaker Pro, all of which use SQL as their basic building blocks.
Database at risk to SQL Injection
SQL Injection is one of the most common application layer attacks currently being used on the Internet. Despite the fact that it is relatively easy to protect against SQL Injection, there are a large number of web applications that remain vulnerable.
According to the Web Application Security Consortium (WASC) 9% of the total hacking incidents reported in the media until 27th July 2006 were due to SQL Injection. More recent data from our own research shows that about 50% of the websites we have scanned this year are susceptible to SQL Injection vulnerabilities.
It may be difficult to answer the question whether your web site and web applications are vulnerable to SQL Injection especially if you are not a programmer or you are not the person who has coded your web applications.
Our experience leads us to believe that there is a significant chance that your data is already at risk from SQL Injection.
Whether an attacker is able to see the data stored on the database or not, really depends on how your website is coded to display the results of the queries sent. What is certain is that the attacker will be able to execute arbitrary SQL Commands on the vulnerable system, either to compromise it or else to obtain information.
If improperly coded, then you run the risk of having your customer and company data compromised.
Impact of SQL Injection
Once an attacker realizes that a system is vulnerable to SQL Injection, he is able to inject SQL Query / Commands through an input form field. This is equivalent to handing the attacker your database and allowing him to execute any SQL command including DROP TABLE to the database!
An attacker may execute arbitrary SQL statements on the vulnerable system. This may compromise the integrity of your database and/or expose sensitive information. Depending on the back-end database in use, SQL injection vulnerabilities lead to varying levels of data/system access for the attacker. It may be possible to manipulate existing queries, to UNION (used to select related information from two tables) arbitrary data, use subselects, or append additional queries.
In some cases, it may be possible to read in or write out to files, or to execute shell commands on the underlying operating system.[break][break]Certain SQL Servers such as Microsoft SQL Server contain stored and extended procedures (database server functions). If an attacker can obtain access to these procedures it
Unfortunately the impact of SQL Injection is only uncoveredwhen the theft is discovered. Data is being unwittingly stolen through various hack attacks all the time. The more expert of hackers rarely get caught.
SQL Injection is a hacking technique which attempts to pass SQL commands through a web application for execution against a backend database.
Present day development is more focused on Web Applications so there is an urgent need for educating the developers & Students on SQL Injection thereby allowing programmers and system administrators to understand the attacks more thoroughly, more attacks will be detected and more countermeasures will be introduced into the systems
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