php-1이라면 뭔가 쉬운 느낌을 주는데, 그리 쉽지는 않았다.
LFI와 wrapper에 관하여 알면 쉬웠을 지도 ...?
📒 Description
📒 Analysis
📖 index.php
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">
<title>PHP Back Office</title>
</head>
<body>
<!-- Fixed navbar -->
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand" href="/">PHP Back Office</a>
</div>
<div id="navbar">
<ul class="nav navbar-nav">
<li><a href="/">Home</a></li>
<li><a href="/?page=list">List</a></li>
<li><a href="/?page=view">View</a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</nav><br/><br/>
<div class="container">
<?php
include $_GET['page']?$_GET['page'].'.php':'main.php';
?>
</div>
</body>
</html>📖 list.php
<h2>List</h2>
<?php
$directory = '../uploads/';
$scanned_directory = array_diff(scandir($directory), array('..', '.', 'index.html'));
foreach ($scanned_directory as $key => $value) {
echo "<li><a href='/?page=view&file={$directory}{$value}'>".$value."</a></li><br/>";
}
?>📖 view.php
<h2>View</h2>
<pre><?php
$file = $_GET['file']?$_GET['file']:'';
if(preg_match('/flag|:/i', $file)){
exit('Permission denied');
}
echo file_get_contents($file);
?>
</pre>
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