/
login1.php
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/
login1.php
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<?php
require "db_connect.php";
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="SQL Injection demo">
<meta name="author" content="Francesco Borzì">
<title>SQL Injection Demo</title>
<!-- Bootstrap core CSS -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="css/style.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="header">
<ul class="nav nav-pills pull-right">
<li class="active" class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Standard Login<b class="caret"></b></a>
<ul class="nav dropdown-menu">
<li><a href="login1.php">Vulnerable</a></li>
<li><a href="login2.php">Secure</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Numeric Login<b class="caret"></b></a>
<ul class="nav dropdown-menu">
<li><a href="login3.php">Vulnerable</a></li>
<li><a href="login4.php">Secure</a></li>
</ul>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Search<b class="caret"></b></a>
<ul class="nav dropdown-menu">
<li><a href="books1.php">Vulnerable</a></li>
<li><a href="books2.php">Secure</a></li>
</ul>
</li>
</ul>
<a href="index.php"><h3 class="text-muted">SQL-Injection Demo</h3></a>
</div>
<h3 class="text-center"><span class="label label-danger">
Vulnerable Standard Login</span></h3><br>
<?php
if ($_GET['attempt'] != 1)
{
?>
<div class="row">
<div class="col-sm-offset-2 col-sm-8">
<form class="form-horizontal" role="form" action="login1.php?attempt=1" method="POST">
<div class="form-group">
<label for="inputEmail3" class="col-sm-2 control-label">Username</label>
<div class="col-sm-8">
<input name="username" type="text" class="form-control" id="inputEmail3" placeholder="Username">
</div>
</div>
<div class="form-group">
<label for="inputPassword3" class="col-sm-2 control-label">Password</label>
<div class="col-sm-8">
<input name="password" type="text" class="form-control" id="inputPassword3" placeholder="Password">
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-default">Sign in</button>
</div>
</div>
</form>
</div>
</div>
<?php
}
else
{
$username = $_POST['username'];
$password = $_POST['password'];
$query = sprintf("SELECT * FROM users WHERE username = '%s' AND password = '%s';",
$username,
$password);
$result = mysqli_query($connection, $query);
if ($result->num_rows > 0)
{
echo "<p class=\"text-center\">Authenticated as <strong>" . $username . "</strong></p>";
// ...
// $_SESSION['logged_user'] = $username;
// ...
}
else
{
echo "<p class=\"text-center\">Wrong username/password combination.</p>";
}
?>
<hr>
<div class="row">
<div class="col-sm-12">
<h4>Query Executed:</h4>
</div>
</div>
<div class="row">
<div class="col-sm-12">
<div class="highlight">
<pre><?= $query ?></pre>
</div>
</div>
</div>
<?php } ?>
<hr>
<div class="row">
<div class="col-sm-12">
<h4>PHP Code:</h4>
</div>
</div>
<div class="row">
<div class="col-sm-12">
<div class="highlight">
<pre>
$username = $_POST['username'];
$password = $_POST['password'];
$query = sprintf("SELECT * FROM users WHERE username = '%s' AND password = '%s';",
$username,
$password);
$result = mysqli_query($connection, $query);
if ($result->num_rows > 0)
{
echo "Authenticated as " . $username;
// ...
// $_SESSION['logged_user'] = $username;
// ...
}
else
{
echo "Wrong username/password combination.";
}
</pre>
</div>
</div>
</div>
<hr>
<div class="row">
<div class="col-sm-12">
<h4>Vulnerability:</h4>
</div>
</div>
<div class="row">
<div class="col-sm-12">
<div class="highlight">
<pre>
Pass <strong>1' OR '1'='1</strong> as password to get authenticated.
</pre>
</div>
</div>
</div>
<br>
<div class="footer">
<p></p>Francesco Borzì - Computer Security Project</p>
</div>
</div> <!-- /container -->
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>