Unique Features of SQL Injection in PHP Assignment
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Unique Features of SQL Injection in PHP Assignment
- 1. Unique Features of in PHP Assignment
- 2. Table of Content • What is SQL Injection • Common SQL Injection Examples • SQL Injection Technique • Example of SQL in Web Pages • SQL Injection Based on 1=1 is Always True • SQL Injection Based on ""="" is Always True • INSERT INTO STATEMENT IN PHP • Prevent SQL Injection Vulnerabilities in PHP applications • Remediation • Why You Need PHP Assignment Help • Our Relevant Services • Why Choose Us • Contact Us
- 3. What is SQL Injection • It is also known as SQLI • SQL injection is a code injection method that might damage our database • SQL injection is one of the most popular web hacking procedures • Through web page input, SQL injection is the malicious code placement in SQL statements
- 4. Common SQL Injection Examples • Retrieving hidden data:- Here, we can modify an SQL query to return added results • Subverting application logic:- Here, we can change a query to interfere with the app's thought • UNION attacks:- Here, we can retrieve data from various database tables
- 5. SQL Injection Technique • First, a hacker must identify vulnerable user information within the website or web apps. • All malicious SQL commands are run in the database after the hacker transmits this content. • Rather than the expected information, an attacker will try to open the crafted SQL commands into a form area. • SQL is a query language and used designed or managed data stored in RDBMS. • The main target is to secure an acknowledgment from the database. It will help the attacker to understand the database structure like table names.
- 6. Example of SQL in Web Pages • SQL injection usually occurs when you ask a user for input, like their username/userid, and instead of a name/id • uId = getRequestString("User_Id"); SQL = "SELECT * FROM Users WHERE User_Id = " + uId;
- 7. SQL Injection Based on 1=1 is Always True • SELECT * FROM Users WHERE User_Id = 105 OR 1=1; • It gives all the columns and filters by userid • Getting userid and password of userid 105 • SELECT UserId, Name, Password FROM Users WHERE User_Id = 105 or 1=1;
- 8. SQL Injection Based on ""="" is Always True • user_name = getRequestString("username"); user_password = getRequestString("userpassword"); sql = 'SELECT * FROM Users WHERE Name ="' + user_name + '" AND Pass ="' + user_password + '"‘ • Result • SELECT * FROM Users WHERE Name =“Hazard Eden" AND Pass =“HE12345“ • Hacker code • SELECT * FROM Users WHERE Name ="" or ""="" AND Pass ="" or ""=""
- 9. INSERT INTO STATEMENT IN PHP $stmt = $dbh->prepare("INSERT INTO Customers (Customer_Name,Address,City) VALUES (:name, :address, :city)"); $stmt->bindParam(':namr', $txtName); $stmt->bindParam(':address', $txtAddress); $stmt->bindParam(':city', $txtCity); $stmt->execute();
- 10. Prevent SQL Injection Vulnerabilities in PHP applications • Input Validation • The code lets for SQL Injection • Errors are shown to the user • Errors are not logged
- 11. Remediation • We need to verify that the input value is a number or not • A parameterized code defines all parts of the SQL query that ought to be managed as user input • Use a universal error report that does not provide sensitive information • We can log errors to the PHP error log or another file of our choice.
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