BSW Gallery Shell Upload Vulnerability

Author  : cr4wl3r
Release : 18-Okt-2012
Product : BSW Gallery
Size    : 38.2 kB
Link    : http://sourceforge.net/projects/bswgallery/  
------------------------------------------ ------------------------------------- 
    gallery.zip                                                                       

                                      Details                                         
                                                                                      
   BSW Gallery                                                                        
                                                                                      
   This is a very simple photo gallery which is written in PHP code                   
   designer by Dr.Mohamed AbdelWahab                                                  
   The web application is vulnerable Arbitrary File Upload                            
   where an attacker could upload a malicious php code without difficulty             
   on the file to be uploaded                                                         
 ------------------------------------------------------------------------------------ 
Code in uploadpic.php
print "<form method=\"POST\" action=\"dopic.php\"enctype=\"multipart/form-data\" style=\"width: 227px\">";
print "<table align=\"center\" style=\"width: 600px\"dir=\"ltr\"><tr><th align=\"right\"width=\"120\" class=\"topic\"><b>File Upload:</b></th>";
print "<th align=\"left\"><input type=\"file\" name=\"fileupload\"></th></tr>";
print "<tr><th><input type=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"10240000\"></th></tr></table>";
print"<table align=\"center\"width=\"600\"dir=\"ltr\">";
print"<th class=\"topic\"width=\"120\"align=\"right\">Image Title</th><th align=\"left\"><input style=\"width:400\"type=\"text\" name=\"picture\" /></th></table>";
print"<table align=\"center\"dir=\"ltr\" width=\"600\"><th class=\"topic\" width=\"120\"align=\"right\">Image Description</th>";
print"<th align=\"left\"><textarea name=\"descrip\"cols=\"48\"rows=\"5\"></textarea></th></table>";
Code in dopic.php
$fname=$_POST['picture'];
$descrip=$_POST['descrip'];
$file_dir ="gallery/";
foreach($_FILES as $file_name => $file_array) {
echo "path: ".$file_array["tmp_name"]."<br/>\n";
echo "name: ".$file_array["name"]."<br/>\n";
echo "type: ".$file_array["type"]."<br/>\n";
echo "size: ".$file_array["size"]."<br/>\n";
if (is_uploaded_file($file_array["tmp_name"])) {
move_uploaded_file($file_array["tmp_name"], "$file_dir/".$file_array["name"]) or die ("Couldn't copy");
echo "Done!<br/>";
}
}
$image=$file_dir.$file_array["name"];
$ip = getenv("REMOTE_ADDR");
$sql = "insert into gallery (picture,files,descrip,updated)values('$fname','$image','$descrip',now());";
mysql_query($sql,$mysql);
mysql_close($mysql);
 ------------------------------------------------------------------------------------ 
  Proof of Concept  :                                                                 
                                                                                      
  http://b0x/path_gallery/uploadpic.php                                               
                                                                                      
  Shell :                                                                             
                                                                                      
  http://b0x/path_gallery/gallery/shell.php                                           
                                                                                      
  See for the demo :                                                                  
                                                                                      
  http://0xuht.org/demo/demo1.png                                                     
  http://0xuht.org/demo/demo2.png                                                     
  http://0xuht.org/demo/demo3.png                                                     
                                                                                      
                                                                                      
  Undergroundthalo Hacking Team                                                       
  Site: http://0xuht.org                                                              
  Twitter: @hackb0x                                                                   
                                                                                                           
                                Happy Birhtday Saskia Adam :)                         



#  0day.today [2018-01-02]  #