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Merge pull request #320 from wrongecho/brute-force-login

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Add basic IP login brute force protection
This commit is contained in:
Johnny
2022-01-22 16:45:36 -05:00
committed by GitHub
parent 833d8996ed c819309fc4
commit c47eac328d
1 changed files with 140 additions and 117 deletions
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login.php
+61 -38
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@@ -29,16 +29,38 @@ if(isset($_POST['login'])){
// Sessions should start after the user has POSTed data
session_start();
$email = strip_tags(mysqli_real_escape_string($mysqli,$_POST['email']));
$password = $_POST['password'];
$current_code = strip_tags(mysqli_real_escape_string($mysqli,$_POST['current_code']));
if(!empty($current_code)){
$current_code = strip_tags(mysqli_real_escape_string($mysqli,$_POST['current_code']));
}
$sql = mysqli_query($mysqli,"SELECT * FROM users WHERE user_email = '$email'");
$row = mysqli_fetch_array($sql);
// Check recent failed login attempts for this IP (more than 10 failed logins in 5 mins)
if(password_verify($password, $row['user_password'])){
// TODO: We can probably just use a count for this, but couldn't make it not count *everything*
$ip_failed_logins_sql = mysqli_query($mysqli, "SELECT * FROM logs WHERE log_ip = '$ip' AND log_type = 'Login' AND log_action = 'Failed' AND log_created_at > (NOW() - INTERVAL 5 MINUTE)");
$failed_login_count = mysqli_num_rows($ip_failed_logins_sql);
// Login brute force check
if($failed_login_count >= 10){
// Logging
mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Login', log_action = 'Failed', log_description = 'Failed login attempt due to IP lockout', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW()");
// Send an alert only count hits 10 to reduce flooding alerts (using 1 as "default" company)
if($failed_login_count == 10){
mysqli_query($mysqli,"INSERT INTO alerts SET alert_type = 'Lockout', alert_message = '$ip was locked out for repeated failed login attempts.', alert_date = NOW(), company_id = '1'");
}
// Inform user
$response = '<div class=\'alert alert-danger\'>IP Lockout - Please try again later.<button class=\'close\' data-dismiss=\'alert\'>&times;</button></div>';
}
// Passed login brute force check
else{
$email = strip_tags(mysqli_real_escape_string($mysqli, $_POST['email']));
$password = $_POST['password'];
$current_code = strip_tags(mysqli_real_escape_string($mysqli, $_POST['current_code']));
if (!empty($current_code)) {
$current_code = strip_tags(mysqli_real_escape_string($mysqli, $_POST['current_code']));
}
$sql = mysqli_query($mysqli, "SELECT * FROM users WHERE user_email = '$email'");
$row = mysqli_fetch_array($sql);
if (password_verify($password, $row['user_password'])) {
$token = $row['user_token'];
$_SESSION['user_id'] = $row['user_id'];
@@ -47,17 +69,17 @@ if(isset($_POST['login'])){
$user_id = $row['user_id'];
// Setup encryption session key
if(isset($row['user_specific_encryption_ciphertext'])){
if (isset($row['user_specific_encryption_ciphertext'])) {
$user_encryption_ciphertext = $row['user_specific_encryption_ciphertext'];
$site_encryption_master_key = decryptUserSpecificKey($user_encryption_ciphertext, $password);
generateUserSessionKey($site_encryption_master_key);
}
// Setup extension
if(isset($row['user_extension_key']) && !empty($row['user_extension_key'])){
if (isset($row['user_extension_key']) && !empty($row['user_extension_key'])) {
// Extension cookie
// Note: Browsers don't accept cookies with SameSite None if they are not HTTPS.
setcookie("user_extension_key", "$row[user_extension_key]", ['path' => '/','secure' => true,'httponly' => true,'samesite' => 'None']);
setcookie("user_extension_key", "$row[user_extension_key]", ['path' => '/', 'secure' => true, 'httponly' => true, 'samesite' => 'None']);
// Set PHP session in DB so we can access the session encryption data (above)
$user_php_session = session_id();
@@ -65,12 +87,12 @@ if(isset($_POST['login'])){
}
if(empty($token)){
if (empty($token)) {
$_SESSION['logged'] = TRUE;
mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Login', log_action = 'Success', log_description = '$user_name successfully logged in', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW(), log_user_id = $user_id");
mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Login', log_action = 'Success', log_description = '$user_name successfully logged in', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW(), log_user_id = $user_id");
header("Location: dashboard.php");
}else{
} else {
$token_field = "<div class='input-group mb-3'>
<input type='text' class='form-control' placeholder='Token' name='current_code' autofocus>
<div class='input-group-append'>
@@ -82,13 +104,13 @@ if(isset($_POST['login'])){
require_once("rfc6238.php");
if(TokenAuth6238::verify($token,$current_code)){
if (TokenAuth6238::verify($token, $current_code)) {
$_SESSION['logged'] = TRUE;
mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Login 2FA', log_action = 'Success', log_description = '$user_name successfully logged in using 2FA', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW(), log_user_id = $user_id");
mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Login 2FA', log_action = 'Success', log_description = '$user_name successfully logged in using 2FA', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW(), log_user_id = $user_id");
//header("Location: $config_start_page");
header("Location: dashboard.php");
}else{
mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Login', log_action = '2FA Failed', log_description = '$user_name failed 2FA', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW(), log_user_id = $user_id");
} else {
mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Login', log_action = '2FA Failed', log_description = '$user_name failed 2FA', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW(), log_user_id = $user_id");
$response = "
<div class='alert alert-primary'>
@@ -99,8 +121,8 @@ if(isset($_POST['login'])){
}
}
}else{
mysqli_query($mysqli,"INSERT INTO logs SET log_type = 'Login', log_action = 'Failed', log_description = 'Failed login attempt using $email', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW()");
} else {
mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Login', log_action = 'Failed', log_description = 'Failed login attempt using $email', log_ip = '$ip', log_user_agent = '$user_agent', log_created_at = NOW()");
$response = "
<div class='alert alert-danger'>
@@ -109,13 +131,14 @@ if(isset($_POST['login'])){
</div>
";
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title><?php echo $config_app_name; ?> | Login</title>
@@ -128,9 +151,9 @@ if(isset($_POST['login'])){
<link rel="stylesheet" href="dist/css/adminlte.min.css">
<!-- Google Font: Source Sans Pro -->
<link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700" rel="stylesheet">
</head>
<body class="hold-transition login-page">
<div class="login-box">
</head>
<body class="hold-transition login-page">
<div class="login-box">
<div class="login-logo">
<b>IT</b>Flow
</div>
@@ -165,26 +188,26 @@ if(isset($_POST['login'])){
</div>
<!-- /.login-card-body -->
</div>
</div>
<!-- /.login-box -->
</div>
<!-- /.login-box -->
<!-- jQuery -->
<script src="plugins/jquery/jquery.min.js"></script>
<!-- Bootstrap 4 -->
<script src="plugins/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- AdminLTE App -->
<script src="dist/js/adminlte.min.js"></script>
<!-- jQuery -->
<script src="plugins/jquery/jquery.min.js"></script>
<!-- Bootstrap 4 -->
<script src="plugins/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- AdminLTE App -->
<script src="dist/js/adminlte.min.js"></script>
<script src="plugins/Show-Hide-Passwords-Bootstrap-4/bootstrap-show-password.min.js"></script>
<script src="plugins/Show-Hide-Passwords-Bootstrap-4/bootstrap-show-password.min.js"></script>
<!-- Prevents resubmit on refresh or back -->
<script>
<!-- Prevents resubmit on refresh or back -->
<script>
if(window.history.replaceState){
window.history.replaceState(null,null,window.location.href);
}
</script>
</script>
</body>
</body>
</html>